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Jalan N, Das T, Sarkar S, Ghosh PP, Ganguly S, Dutta A, Mukhopadhyay M, Goswami S, Bose D. Insights into biomimetic system-ligand interaction of substituted isophthalic acid: A functionality induced photophysical study. Photochem Photobiol 2024. [PMID: 38686675 DOI: 10.1111/php.13955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 02/23/2024] [Accepted: 04/15/2024] [Indexed: 05/02/2024]
Abstract
The present article attempts to interpret the modulation of photophysical properties of isophthalic acid (IPA) through its amino [5-amino isophthalic acid (5-amino IPA)] and azido [5-azido isophthalic acid (5-azido IPA)] substituted derivatives which are chemically potent organic ligands. The ground state structure-reactivity correlation of 5-amino IPA and 5-azido IPA has been deciphered through computational studies. The computed energetics show significant interaction feasibility of the substituted ligand systems with the biomimetic systems which is further validated experimentally. The binding interaction of the probes with oppositely polarized functionalization is studied to be significant with cetyltrimethylammonium bromide (CTAB) and bovine serum albumin (BSA) with the amino functionalized derivative having a comparatively stronger binding constant value. The steady-state absorption and fluorescence study establish significant modification of polarity of the heteronuclear probes. The micro polarity study in water-dioxane mixtures enables determination of polarity of 5-amino IPA in CTAB and BSA unlike 5-azido IPA. Presence of an overlapping region between the emission spectrum of BSA and the absorption spectrum of the probes as probable donor-acceptor pair are also scrutinized via the steady-state fluorescence studies. The photophysical behavior of 5-amino IPA is observed to be somewhat dissimilar to that of 5-azido IPA.
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Affiliation(s)
- Neha Jalan
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Kadampukur, India
| | - Tiasha Das
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Kadampukur, India
| | - Sumit Sarkar
- Department of Materials Science & Technology, School of Applied Science & Technology, Maulana Abul Kalam Azad University of Technology (MAKAUT), Kolkata, India
| | | | - Sumi Ganguly
- Department of Chemistry, Sister Nibedita Govt. General Degree College for Girls, Kolkata, India
| | - Aparna Dutta
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, India
| | - Madhumita Mukhopadhyay
- Department of Materials Science & Technology, School of Applied Science & Technology, Maulana Abul Kalam Azad University of Technology (MAKAUT), Kolkata, India
| | - Soumyabrata Goswami
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Kadampukur, India
| | - Debosreeta Bose
- Department of Chemistry, Amity Institute of Applied Sciences, Amity University Kolkata, Kadampukur, India
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2
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Bandyopadhyay A, Hazra R, Roy D, Bhattacharya A. HSA over BSA: Selective detection of Human Serum Albumin via a naphtho [2,1-b] furan-based system. Chem Asian J 2024; 19:e202301055. [PMID: 38192093 DOI: 10.1002/asia.202301055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/29/2023] [Accepted: 01/08/2024] [Indexed: 01/10/2024]
Abstract
Human serum albumin (HSA) is an important biomarker that can be used for the early diagnosis of many diseases. In this work, a TICT probe bearing fused naphtho-furan scaffold (NPNF) was developed and employed in the selective turn-on sensing of HSA. The probe's selectivity towards HSA was observed using steady-state fluorescence experiments, with limit of quantitation in micromolar levels. NPNF's capability to exclusively detect HSA over BSA was further studied/rationalized using anisotropy and time-resolved studies. Molecular docking was used to shed light on the location of NPNF in the subdomain IB of HSA. The practical application of the probe was also demonstrated by the detection of HSA in urine and the HSA-assisted detection of cerium.
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Affiliation(s)
- Anamika Bandyopadhyay
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Rituparna Hazra
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Durba Roy
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
| | - Anupam Bhattacharya
- Department of Chemistry, Birla Institute of Technology and Science-Pilani (Hyderabad Campus), Hyderabad, 500078, India
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Khayyat AIA, Zargar S, Wani TA, Rehman MU, Khan AA. Association Mechanism and Conformational Changes in Trypsin on Its Interaction with Atrazine: A Multi- Spectroscopic and Biochemical Study with Computational Approach. Int J Mol Sci 2022; 23:ijms23105636. [PMID: 35628445 PMCID: PMC9146720 DOI: 10.3390/ijms23105636] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/15/2022] [Accepted: 05/16/2022] [Indexed: 02/01/2023] Open
Abstract
Atrazine (ATR) is a herbicide globally used to eliminate undesired weeds. Herbicide usage leads to various adverse effects on human health and the environment. The primary source of herbicides in humans is the food laced with the herbicides. The ATR binding to trypsin (TYP) was investigated in this study to explore its binding potential and toxicity. In vitro interaction of ATR with TYP was studied using multi-spectroscopic methods, molecular docking, and enzyme kinetics to explore the mechanism of binding for the TYP-ATR system. The TYP-ATR complex revealed binding constants (103 M-1), suggesting a moderate binding. The free energy for the TYP-ATR complexes was negative, suggesting a spontaneous interaction. Thermodynamic parameters enthalpy (ΔH) and entropy (ΔS) obtained positive values for the TYP-ATR system suggesting hydrophobic interactions in the binding process. Micro-environmental and conformational changes in TYP molecules were induced on interaction with ATR. Reduced catalytic activity of TYP was observed after interaction with ATR owing to the changes in the secondary structure of the TYP.
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Affiliation(s)
- Arwa Ishaq A. Khayyat
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
- Correspondence: (S.Z.); (T.A.W.)
| | - Tanveer A. Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
- Correspondence: (S.Z.); (T.A.W.)
| | - Muneeb U. Rehman
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Azmat Ali Khan
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
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Sen Chowdhury M, Sarkar A, Rai SR, Dasgupta S, Majumder I, Bhattacharya A, Das D, Bose D, Mukhopadhyay J, Mukhopadhyay M. Probing the binding interaction of zinc (II) Schiff bases with bovine serum albumin: A spectroscopic and molecular docking study. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Megha Sen Chowdhury
- Department of Chemistry, Amity Institute of Applied Sciences (AIAS) Amity University Kolkata 700156 India
| | - Anwita Sarkar
- Amity Institute of Biotechnology Amity University Kolkata 700156 India
| | - Sristi Raj Rai
- Amity Institute of Biotechnology Amity University Kolkata 700156 India
| | - Sanchari Dasgupta
- Department of Chemistry University of Calcutta 92, A. P. C. Road Kolkata West Bengal 700 009 India
| | - Ishani Majumder
- Department of Chemistry University of Calcutta 92, A. P. C. Road Kolkata West Bengal 700 009 India
| | - Abir Bhattacharya
- Department of Physics, The Bhawanipur Education Society College University of Calcutta Kolkata 700020 India
| | - Debasis Das
- Department of Chemistry University of Calcutta 92, A. P. C. Road Kolkata West Bengal 700 009 India
| | - Debosreeta Bose
- Department of Chemistry, Amity Institute of Applied Sciences (AIAS) Amity University Kolkata 700156 India
| | - Jayanta Mukhopadhyay
- Energy Materials and Devices Division CSIR‐Central Glass and Ceramic Research Institute Kolkata 700 032 India
| | - Madhumita Mukhopadhyay
- Department of Chemistry, Amity Institute of Applied Sciences (AIAS) Amity University Kolkata 700156 India
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Halder S, Aggrawal R, Aswal VK, Ray D, Saha SK. Study of refolding of a denatured protein and microenvironment probed through FRET to a twisted intramolecular charge transfer fluorescent biosensor molecule. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114532] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Guria S, Ghosh A, Upadhyay P, Das MK, Mishra T, Adhikary A, Adhikari S. Small-Molecule Probe for Sensing Serum Albumin with Consequential Self-Assembly as a Fluorescent Organic Nanoparticle for Bioimaging and Drug-Delivery Applications. ACS Appl Bio Mater 2020; 3:3099-3113. [PMID: 35025354 DOI: 10.1021/acsabm.0c00146] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Subhajit Guria
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Avijit Ghosh
- Centre for Research in Nanoscience & Nanotechnology (CRNN), University of Calcutta, Technology Campus, Sector-III, Block-JD 2, Salt Lake, Kolkata 700098, West Bengal, India
| | - Priyanka Upadhyay
- Centre for Research in Nanoscience & Nanotechnology (CRNN), University of Calcutta, Technology Campus, Sector-III, Block-JD 2, Salt Lake, Kolkata 700098, West Bengal, India
| | - Manas kumar Das
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Tanushree Mishra
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
| | - Arghya Adhikary
- Centre for Research in Nanoscience & Nanotechnology (CRNN), University of Calcutta, Technology Campus, Sector-III, Block-JD 2, Salt Lake, Kolkata 700098, West Bengal, India
| | - Susanta Adhikari
- Department of Chemistry, University of Calcutta, 92, A.P.C. Road, Kolkata 700009, West Bengal, India
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Valojerdi FM, Farasat A, Shariatifar H, Gheibi N. Study of HSA interactions with arachidonic acid using spectroscopic methods revealing molecular dynamics of HSA-AA interactions. Biomed Rep 2020; 12:125-133. [PMID: 32042421 PMCID: PMC7006104 DOI: 10.3892/br.2019.1270] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 09/20/2019] [Indexed: 12/14/2022] Open
Abstract
The interaction between human serum albumin (HSA) and arachidonic acid (AA) as an unsaturated fatty acid were investigated in the present study using methods including UV-VIS spectrophotometry, fluorescence and circular dichroism (CD) spectroscopy, lifetime measurements, fluorescence anisotropy measurements and visual molecular dynamics (MD). The thermodynamic parameters were assessed from HSA thermal and chemical denaturation in the presence and absence of AA. From the thermal denaturation, the Tm and ΔG˚(298K) magnitudes obtained were 327.7 K and 88 kJ/mol, respectively, for HSA alone, and 323.4 K and 85 kJ/mol, respectively, following treatment with a 10 µM AA concentration. The same manner of reduction in Gibbs free energy as a criterion of protein stability was achieved during chemical denaturation by urea in the presence of AA. The present study investigates HSA binding nature through MD approaches, and the results indicated that the binding affinity of AA to the subdomain IIA of HSA is greater compared with that of subdomain IIIA. Although the HSA regular secondary structure evaluation by CD exhibited a minor change following incubation with AA, its tertiary structure revealed an observable fluctuation. Thus, it appears that the interaction between AA and HSA requires minor instability and partial structural changes.
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Affiliation(s)
| | - Alireza Farasat
- Cellular and Molecular Research Center, Qazvin University of Medical Sciences, Qazvin 3419915315, Iran
| | - Hanifeh Shariatifar
- Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj 6618634683, Iran
| | - Nematollah Gheibi
- Cellular and Molecular Research Center, Qazvin University of Medical Sciences, Qazvin 3419915315, Iran
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Kolawole AO, Kolawole AN, Olofinsan KA, Elekofehinti OO. Kolaflavanone of kolaviron selectively binds to subdomain 1B of human serum albumin: spectroscopic and molecular docking evidences. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.comtox.2020.100118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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9
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Kumari S, Halder S, Aggrawal R, Sundar G, Saha SK. Effect of gemini surfactants on binding interactions of Coumarin 485 with calf thymus deoxyribonucleic acid in presence of nanotubes of β-cyclodextrin. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Maity A, Pal U, Chakraborty B, Sengupta C, Sau A, Chakraborty S, Basu S. Preferential photochemical interaction of Ru (III) doped carbon nano dots with bovine serum albumin over human serum albumin. Int J Biol Macromol 2019; 137:483-494. [DOI: 10.1016/j.ijbiomac.2019.06.126] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/16/2019] [Accepted: 06/17/2019] [Indexed: 12/11/2022]
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Siddiqui GA, Siddiqi MK, Khan RH, Naeem A. Probing the binding of phenolic aldehyde vanillin with bovine serum albumin: Evidence from spectroscopic and docking approach. Spectrochim Acta A Mol Biomol Spectrosc 2018; 203:40-47. [PMID: 29859491 DOI: 10.1016/j.saa.2018.05.023] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/03/2018] [Accepted: 05/06/2018] [Indexed: 06/08/2023]
Abstract
The interactions of bovine serum albumin (BSA) with vanillin (VAN) were studied using UV-vis absorption, fluorescence, synchronous fluorescence, three dimensional fluorescence spectroscopy (3D), Fourier transform infrared spectroscopy (FTIR), circular dichroism (CD), and molecular docking techniques. The results revealed that VAN causes the static quenching of BSA by forming BSA-VAN complex. The thermodynamic parameters obtained using isothermal titration calorimetry (ITC) showed that the interaction between BSA and VAN is spontaneous and hydrogen bonding, van der Waals forces are mainly involved in stabilizing the complex. The distance between the donor and the acceptor was analyzed using fluorescence resonance energy transfer (FRET) which showed Forster distance of 2.58 nm. Molecular docking technique was applied to study the modes of interaction between BSA-VAN system and it was found that VAN bound to the sub-domain IIA of BSA. Structural analysis using 3D, synchronous fluorescence FTIR, and CD showed that upon binding of VAN, BSA exhibits small micro-environmental changes around tryptophan amino acid residue.
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Affiliation(s)
- Gufran Ahmed Siddiqui
- Department of Biochemistry, Faculty of Lifesciences, Aligarh Muslim University, Aligarh 202002, UP, India
| | | | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202002, UP, India
| | - Aabgeena Naeem
- Department of Biochemistry, Faculty of Lifesciences, Aligarh Muslim University, Aligarh 202002, UP, India..
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Halder S, Kumari S, Kumar S, Aswal VK, Saha SK. Fluorescence Resonance Energy Transfer, Small-Angle Neutron Scattering, and Dynamic Light Scattering Study on Interactions of Gemini Surfactants Having Different Spacer Groups with Protein at Various Regions of Binding Isotherms. ACS Omega 2018; 3:11192-11204. [PMID: 31459229 PMCID: PMC6645604 DOI: 10.1021/acsomega.8b01471] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 09/03/2018] [Indexed: 06/07/2023]
Abstract
The binding interactions of three gemini surfactants having different spacer groups (12-4-12, 12-8-12, and 12-4(OH)-12) with a high concentration (150 μM) of bovine serum albumin (BSA) at various regions of binding isotherms have been studied by means of steady-state fluorescence and fluorescence anisotropy, time-correlated single-photon counting fluorescence of trans-2-[4-(dimethylamino)styryl]benzothiazole, small-angle neutron scattering (SANS), and dynamic light scattering (DLS) measurements. The fluorescence resonance energy transfer phenomenon between the twisted intramolecular charge transfer fluorescent molecule, trans-2-[4-(dimethylamino)styryl]benzothiazole as an acceptor, and tryptophan 213 (Trp-213) of BSA as a donor has been successfully used to probe the binding interactions of gemini surfactants with protein at all regions of binding isotherms. The increasing order of energy transfer efficiency at a higher concentration range of surfactants is 12-8-12 > 12-4-12 > 12-4(OH)-12. Stronger binding of micelles of gemini surfactant molecules having a comparatively more hydrophobic spacer group with the hydrophobic segments of the protein results in closer approach of trans-2-[4-(dimethylamino)styryl]benzothiazole molecules solubilized in micelles to Trp-213. The average excited-state lifetimes become shorter with a trend of increase in contribution from the fast component and decrease in contribution from the slow component to the decay with increasing concentration of a surfactant. The nonradiative rate constant of trans-2-[4-(dimethylamino)styryl]benzothiazole increases with increasing concentration of a surfactant because the average microenvironment around it in protein-surfactant aggregates is more polar as compared to that in native protein. SANS and DLS measurements were carried out for the study of the structural deformations in the protein, on enhancement of the concentration of the gemini surfactants. The necklace and bead model has been used for the analysis of SANS data for the protein-surfactant complexes. At a higher concentration range, 12-8-12 and 12-4-12 have a slightly smaller fractal dimension and a larger correlation length as compared to 12-4(OH)-12. DLS data show that the increasing order of hydrodynamic diameter for the complexes of protein with three gemini surfactants in their high concentration range is 12-4(OH)-12 < 12-4-12 < 12-8-12.
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Affiliation(s)
- Sayantan Halder
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
| | - Sunita Kumari
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
| | - Sugam Kumar
- Solid
State Physics Division, Bhabha Atomic Research
Centre (BARC), Trombay, Mumbai, 400085 Maharashtra, India
| | - Vinod K. Aswal
- Solid
State Physics Division, Bhabha Atomic Research
Centre (BARC), Trombay, Mumbai, 400085 Maharashtra, India
| | - Subit K. Saha
- Department
of Chemistry, Birla Institute of Technology
& Science (BITS), Pilani, Pilani Campus, Pilani, 333 031 Rajasthan, India
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Kundu P, Chattopadhyay N. Unraveling the binding interaction of a bioactive pyrazole-based probe with serum proteins: Relative concentration dependent 1:1 and 2:1 probe-protein stoichiometries. Biophys Chem 2018; 240:70-81. [DOI: 10.1016/j.bpc.2018.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 05/31/2018] [Accepted: 06/02/2018] [Indexed: 11/17/2022]
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Ling I, Taha M, Al-Sharji NA, Abou-Zied OK. Selective binding of pyrene in subdomain IB of human serum albumin: Combining energy transfer spectroscopy and molecular modelling to understand protein binding flexibility. Spectrochim Acta A Mol Biomol Spectrosc 2018; 194:36-44. [PMID: 29316482 DOI: 10.1016/j.saa.2018.01.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 12/08/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
The ability of human serum albumin (HSA) to bind medium-sized hydrophobic molecules is important for the distribution, metabolism, and efficacy of many drugs. Herein, the interaction between pyrene, a hydrophobic fluorescent probe, and HSA was thoroughly investigated using steady-state and time-resolved fluorescence techniques, ligand docking, and molecular dynamics (MD) simulations. A slight quenching of the fluorescence signal from Trp214 (the sole tryptophan residue in the protein) in the presence of pyrene was used to determine the ligand binding site in the protein, using Förster's resonance energy transfer (FRET) theory. The estimated FRET apparent distance between pyrene and Trp214 was 27Å, which was closely reproduced by the docking analysis (29Å) and MD simulation (32Å). The highest affinity site for pyrene was found to be in subdomain IB from the docking results. The calculated equilibrium structure of the complex using MD simulation shows that the ligand is largely stabilized by hydrophobic interaction with Phe165, Phe127, and the nonpolar moieties of Tyr138 and Tyr161. The fluorescence vibronic peak ratio I1/I3 of bound pyrene inside HSA indicates the presence of polar effect in the local environment of pyrene which is less than that of free pyrene in buffer. This was clarified by the MD simulation results in which an average of 5.7 water molecules were found within 0.5nm of pyrene in the binding site. Comparing the fluorescence signals and lifetimes of pyrene inside HSA to that free in buffer, the high tendency of pyrene to form dimer was almost completely suppressed inside HSA, indicating a high selectivity of the binding pocket toward pyrene monomer. The current results emphasize the ability of HSA, as a major carrier of several drugs and ligands in blood, to bind hydrophobic molecules in cavities other than subdomain IIA which is known to bind most hydrophobic drugs. This ability stems from the nature of the amino acids forming the binding sites of the protein that can easily adapt their shape to accommodate a variety of molecular structures.
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Affiliation(s)
- Irene Ling
- School of Science, Monash University Malaysia, Bandar Sunway, 47500, Selangor, Malaysia
| | - Mohamed Taha
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences (PSAS), Beni-Suef University, Beni-Suef, Egypt; Department of Chemistry, Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123 Muscat, Oman
| | - Nada A Al-Sharji
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123 Muscat, Oman
| | - Osama K Abou-Zied
- Department of Chemistry, Faculty of Science, Sultan Qaboos University, P.O. Box 36, Postal Code 123 Muscat, Oman.
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Mukherjee A, Mondal S, Singh B. Spectroscopic, electrochemical and molecular docking study of the binding interaction of a small molecule 5H-naptho[2,1-f][1,2] oxathieaphine 2,2-dioxide with calf thymus DNA. Int J Biol Macromol 2017; 101:527-35. [DOI: 10.1016/j.ijbiomac.2017.03.053] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Revised: 03/09/2017] [Accepted: 03/10/2017] [Indexed: 11/24/2022]
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16
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Xu X, Du Z, Wu W, Wang Y, Zhang B, Mao X, Jiang L, Yang J, Hou S. Synthesis of triangular silver nanoprisms and spectroscopic analysis on the interaction with bovine serum albumin. Anal Bioanal Chem 2017; 409:5327-36. [PMID: 28687884 DOI: 10.1007/s00216-017-0478-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/08/2017] [Accepted: 06/19/2017] [Indexed: 10/19/2022]
Abstract
The interactions of triangular silver nanoprisms (TAgNPrs) with bovine serum albumin (BSA) were investigated using multiple spectroscopic techniques. A noticeable absorbance increase was noted in the peak ranges of 250 to 300 nm for BSA, and the intensity increased with the increasing concentration of TAgNPrs. Furthermore, a slight blue shift of the surface plasmon resonance band of TAgNPrs occurred, indicating that the protein absorbed on the TAgNPrs surface to form a bio-nano interface. Analysis of fluorescence quenching data using the Stern-Volmer method revealed that static quenching takes place with complex formation. Evaluation of thermodynamic parameter ΔG θ for the binding processes indicated that the binding reaction was exothermic. Furthermore, the values of binding constant K revealed that the size of nanoparticles can affect the binding degree. The order of binding affinity is 43.7 nm > 36.2 nm > 25.1 nm. The competitive experiments of site markers (flufenamic acid and phenylbutazone) suggested that the binding site of TAgNPrs on BSA was located in the region of subdomain IIIA (Sudlow site II). In addition, the conformational changes of BSA by TAgNPrs were analyzed by using synchronous fluorescence spectra, circular dichroism, and three-dimensional fluorescence spectra. Graphical abstract The protein absorbed on the TAgNPrs surface to form a nanoparticle-protein corona.
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Ghosh D, Rhodes S, Winder D, Atkinson A, Gibson J, Ming W, Padgett C, Landge S, Aiken K. Spectroscopic investigation of bis-appended 1,2,3-triazole probe for the detection of Cu(II) ion. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Suganthi M, Elango KP. Synthesis, characterization and serum albumin binding studies of vitamin K3 derivatives. J Photochem Photobiol B 2016; 166:126-135. [PMID: 27898366 DOI: 10.1016/j.jphotobiol.2016.11.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 10/09/2016] [Accepted: 11/16/2016] [Indexed: 12/17/2022]
Abstract
Synthesis, characterization and bovine serum albumin (BSA) binding properties of three derivatives of vitamin K3 have been described. Results of UV-Vis and fluorescence spectra indicate complexation between BSA and the ligands with conformational changes in protein, which is strongly supported by synchronous and three dimensional fluorescence studies. Addition of the ligands quenches the fluorescence of BSA which is accompanied by reduction in quantum yield (Ф) from 0.1010 to 0.0775-0.0986 range. Thermodynamic investigations reveal that hydrophobic interaction is the major binding force in the spontaneous binding of these ligands with BSA. The binding constants obtained depend on the substituent present in the quinone ring, which correlates linearly with the Taft's field substituent constant (σF). The results show that compound with strong electron withdrawing nitro-group forms relatively stronger complex with BSA than amino and thioglycolate substituted ones. Circular dichroism studies show that the α-helical content of the protein, upon complexation with the ligands, decreases in the case of amino and nitro substituted vitamin K3 while increases in thioglycolate substituted compound. Molecular docking studies indicated that the vitamin K3 derivatives are surrounded by hydrophobic residues of the BSA molecule, which is in good agreement with the results of fluorescence spectral and thermodynamic studies.
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Affiliation(s)
- Murugesan Suganthi
- Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram 624 302, India
| | - Kuppanagounder P Elango
- Department of Chemistry, Gandhigram Rural Institute (Deemed University), Gandhigram 624 302, India.
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19
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Suryawanshi VD, Walekar LS, Gore AH, Anbhule PV, Kolekar GB. Spectroscopic analysis on the binding interaction of biologically active pyrimidine derivative with bovine serum albumin. J Pharm Anal 2016; 6:56-63. [PMID: 29403963 PMCID: PMC5762442 DOI: 10.1016/j.jpha.2015.07.001] [Citation(s) in RCA: 211] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 07/11/2015] [Accepted: 07/14/2015] [Indexed: 12/02/2022] Open
Abstract
A biologically active antibacterial reagent, 2-amino-6-hydroxy-4-(4-N, N-dimethylaminophenyl)-pyrimidine-5-carbonitrile (AHDMAPPC), was synthesized. It was employed to investigate the binding interaction with the bovine serum albumin (BSA) in detail using different spectroscopic methods. It exhibited antibacterial activity against Escherichia coli and Staphylococcus aureus which are common food poisoning bacteria. The experimental results showed that the fluorescence quenching of model carrier protein BSA by AHDMAPPC was due to static quenching. The site binding constants and number of binding sites (n≈1) were determined at three different temperatures based on fluorescence quenching results. The thermodynamic parameters, enthalpy change (ΔH), free energy (ΔG) and entropy change (ΔS) for the reaction were calculated to be 15.15 kJ/mol, -36.11 kJ/mol and 51.26 J/mol K according to van't Hoff equation, respectively. The results indicated that the reaction was an endothermic and spontaneous process, and hydrophobic interactions played a major role in the binding between drug and BSA. The distance between donor and acceptor is 2.79 nm according to Förster's theory. The alterations of the BSA secondary structure in the presence of AHDMAPPC were confirmed by UV-visible, synchronous fluorescence, circular dichroism (CD) and three-dimensional fluorescence spectra. All these results indicated that AHDMAPPC can bind to BSA and be effectively transported and eliminated in the body. It can be a useful guideline for further drug design.
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Affiliation(s)
| | | | | | | | - Govind B. Kolekar
- Fluorescence Spectroscopy Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, Maharashtra, India
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Kundu P, Ghosh S, Das S, Chattopadhyay N. Cyclodextrin induced controlled delivery of a biological photosensitizer from a nanocarrier to DNA. Phys Chem Chem Phys 2016; 18:3685-93. [DOI: 10.1039/c5cp06174a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Addition of β-cyclodextrin to the micelle bound phenosafranin in the presence of ctDNA leads to quantitative transfer of the fluorophore from the micelle to the DNA.
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Affiliation(s)
- Pronab Kundu
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Saptarshi Ghosh
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
| | - Sinjan Das
- Department of Chemistry
- Jadavpur University
- Kolkata-700032
- India
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21
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Liu Y, Zhang G, Liao Y, Wang Y. Binding characteristics of psoralen with trypsin: Insights from spectroscopic and molecular modeling studies. Spectrochim Acta A Mol Biomol Spectrosc 2015; 151:498-505. [PMID: 26162336 DOI: 10.1016/j.saa.2015.07.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/01/2015] [Accepted: 07/03/2015] [Indexed: 06/04/2023]
Abstract
Psoralen (PSO) is a naturally occurring furanocoumarin with a variety of pharmacological activities, however very limited information on the interaction of PSO with trypsin is available. In this study, the binding characteristics between PSO and trypsin at physiological pH were investigated using a combination of fluorescence, UV-vis absorption, circular dichroism (CD), Fourier transform infrared (FT-IR) spectroscopic, chemometric and molecular modeling approaches. It was found that the fluorescence quenching of trypsin by PSO was a static quenching procedure, ascribing the formation of a PSO-trypsin complex. The binding of PSO to trypsin was driven mainly by hydrophobic forces as the positive enthalpy change and entropy change values. The molecular docking showed that PSO inserted into the active site pocket of trypsin to interact with the catalytic residues His57, Asp102 and Ser195 and may cause a decrease in trypsin activity. The results of CD and FT-IR spectra along with the temperature-induced denaturation studies indicated that the addition of PSO to trypsin led to the changes in the secondary structure of the enzyme. The concentration profiles and spectra of the three components (PSO, trypsin, and PSO-trypsin complex) obtained by multivariate curve resolution-alternating least squares analysis exhibited the kinetic processes of PSO-trypsin interaction. This study will be helpful to understand the mechanism of PSO that affects the conformation and activity of trypsin in biological processes.
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Affiliation(s)
- Yingying Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Yijing Liao
- College of Pharmacy, Nanchang University, Nanchang 330047, China
| | - Yaping Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
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22
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Kedia N, Bagchi S. Time resolved FRET measurement in various heterogeneous media using merocyanine dye as a donor. Spectrochim Acta A Mol Biomol Spectrosc 2015; 145:467-472. [PMID: 25796017 DOI: 10.1016/j.saa.2015.03.075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 02/05/2015] [Accepted: 03/05/2015] [Indexed: 06/04/2023]
Abstract
Ultrafast fluorescence resonance energy transfer (FRET) from a merocyanine dye to a Rhodamine 6G (R6G) molecule in micelles formed by the surfactants SDS and DTAB and also in a catanionic vesicle formed by SDS and DTAB has been studied by picosecond time resolved emission spectroscopy. Here the dye acts as a donor molecule and R6G acts as the acceptor molecule. Multiple timescales of FRET have been detected, namely, an ultrafast component of 100-500 ps and relatively long component (1800-3300 ps). The different time scales are attributed to different donor-acceptor distances.
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Affiliation(s)
- Niraja Kedia
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur Campus, BCKV Main P.O., Nadia, 741252, India
| | - Sanjib Bagchi
- Presidency University, 86/1, College Street, Kolkata 700 073, India.
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23
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Chakraborty B, Mitra P, Basu S. Spectroscopic exploration of drug–protein interaction: a study highlighting the dependence of the magnetic field effect on inter-radical separation distance formed during photoinduced electron transfer. RSC Adv 2015. [DOI: 10.1039/c5ra13575c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The magnetic field effect can be used as a “spectroscopic ruler” to assess inter-radical separation distances in photoinduced electron transfer.
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Affiliation(s)
| | - Piyali Mitra
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India
| | - Samita Basu
- Chemical Sciences Division
- Saha Institute of Nuclear Physics
- Kolkata
- India
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24
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Kundu P, Ghosh S, Chattopadhyay N. Exploration of the binding interaction of a potential nervous system stimulant with calf-thymus DNA and dissociation of the drug–DNA complex by detergent sequestration. Phys Chem Chem Phys 2015; 17:17699-709. [DOI: 10.1039/c5cp02101d] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The binding interaction of a potential nervous system stimulant with calf-thymus DNA has been divulged and dissociation of the drug–DNA complex has been achieved by the detergent sequestration method.
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Affiliation(s)
- Pronab Kundu
- Department of Chemistry
- Jadavpur University
- Kolkata – 700 032
- India
| | - Saptarshi Ghosh
- Department of Chemistry
- Jadavpur University
- Kolkata – 700 032
- India
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25
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Seyed Dorraji M, Panahi Azar V, Rasoulifard M. Interaction between deferiprone and human serum albumin: Multi-spectroscopic, electrochemical and molecular docking methods. Eur J Pharm Sci 2014; 64:9-17. [DOI: 10.1016/j.ejps.2014.08.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2014] [Revised: 07/16/2014] [Accepted: 08/07/2014] [Indexed: 12/20/2022]
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26
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Wang Y, Zhang G. Spectroscopic and molecular simulation studies on the interaction of di-(2-ethylhexyl) phthalate and human serum albumin: Interaction between di-(2-ethylhexyl) phthalate and HSA. LUMINESCENCE 2015; 30:198-206. [DOI: 10.1002/bio.2713] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 04/28/2014] [Accepted: 05/07/2014] [Indexed: 11/07/2022]
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27
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Meti MD, Nandibewoor ST, Chimatadar SA. Binding studies of lincosamide antibiotic drug clindamycin phosphate to human serum albumin by fluorescence, 3D, and circular dichroism spectroscopy. Monatsh Chem 2014. [DOI: 10.1007/s00706-014-1207-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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28
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Jing J, Qu X, Tu Z, Zheng C, Zheng Z. Spectroscopic investigations of the interaction of the anti‑hypertension drug valsartan with human serum albumin. Mol Med Rep 2014; 9:2191-6. [PMID: 24736998 DOI: 10.3892/mmr.2014.2129] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 03/04/2014] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to investigate the interaction between valsartan, an anti-hypertension drug, and human serum albumin (HSA) using spectroscopic techniques, including fluorescence, ultraviolet-visible absorption, synchronous fluorescence and circular dichroism (CD). The results demonstrated that valsartan and HSA form a complex and that a static quenching mechanism occurs. In addition, the binding constant and the number of binding sites for valsartan on HSA were analyzed. Hydrophobic interactions and hydrogen bonds were the predominant forces in the association reaction based on thermodynamic parameters. The distance between the donor (HSA) and the acceptor (valsartan) was 1.994 nm as derived from Forster's theory. Alterations in the secondary structure of HSA in the presence of valsartan were assessed using synchronous fluorescence and CD. This study provides an enhanced understanding of the pharmacodynamic effects of valsartan on the physiologically important protein HSA.
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Affiliation(s)
- Jian Jing
- Department of Bioorganic and Biological Chemistry, Beijing Key Lab, Beijing Normal University, Beijing 100875, P.R. China
| | - Xin Qu
- Department of Bioorganic and Biological Chemistry, Beijing Key Lab, Beijing Normal University, Beijing 100875, P.R. China
| | - Zhi Tu
- Department of Bioorganic and Biological Chemistry, Beijing Key Lab, Beijing Normal University, Beijing 100875, P.R. China
| | - Chenhoo Zheng
- Department of Bioorganic and Biological Chemistry, Beijing Key Lab, Beijing Normal University, Beijing 100875, P.R. China
| | - Zhicheng Zheng
- Department of Bioorganic and Biological Chemistry, Beijing Key Lab, Beijing Normal University, Beijing 100875, P.R. China
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29
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Ghosh S, Kundu P, Paul BK, Chattopadhyay N. Binding of an anionic fluorescent probe with calf thymus DNA and effect of salt on the probe–DNA binding: a spectroscopic and molecular docking investigation. RSC Adv 2014. [DOI: 10.1039/c4ra14298e] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Binding mode of biologically relevant anionic probe, ANS, with ctDNA is divulged from spectroscopic and molecular docking studies.
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Affiliation(s)
- Saptarshi Ghosh
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032, India
| | - Pronab Kundu
- Department of Chemistry
- Jadavpur University
- Kolkata – 700032, India
| | - Bijan Kumar Paul
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066, India
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30
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31
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Sarkar D. Probing the interaction of a globular protein with a small fluorescent probe in the presence of silver nanoparticles: spectroscopic characterization of its domain specific association and dissociation. RSC Adv 2013. [DOI: 10.1039/c3ra42755b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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32
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Jana S, Dalapati S, Ghosh S, Guchhait N. Potential charge transfer probe induced conformational changes of model plasma protein human serum albumin: Spectroscopic, molecular docking, and molecular dynamics simulation study. Biopolymers 2012; 97:766-77. [DOI: 10.1002/bip.22057] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Jana S, Dalapati S, Ghosh S, Guchhait N. Study of microheterogeneous environment of protein Human Serum Albumin by an extrinsic fluorescent reporter: A spectroscopic study in combination with Molecular Docking and Molecular Dynamics Simulation. Journal of Photochemistry and Photobiology B: Biology 2012; 112:48-58. [DOI: 10.1016/j.jphotobiol.2012.04.007] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 03/30/2012] [Accepted: 04/06/2012] [Indexed: 10/28/2022]
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34
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Fayed TA, El-morsi MA, El-nahass MN. Fluorescence Characteristics and Inclusion of ICT Fluorescent Probe in Organized Assemblies. J Fluoresc 2012; 22:1101-11. [DOI: 10.1007/s10895-012-1049-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 03/19/2012] [Indexed: 10/28/2022]
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35
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36
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Zhang G, Wang L, Pan J. Probing the binding of the flavonoid diosmetin to human serum albumin by multispectroscopic techniques. J Agric Food Chem 2012; 60:2721-2729. [PMID: 22353148 DOI: 10.1021/jf205260g] [Citation(s) in RCA: 179] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The binding mechanism of molecular interaction between diosmetin and human serum albumin (HSA) in a pH 7.4 phosphate buffer was studied using atomic force microscopy (AFM) and various spectroscopic techniques including fluorescence, resonance light scattering (RLS), UV-vis absorption, circular dichroism (CD), and Fourier transform infrared (FT-IR) spectroscopy. Fluorescence data revealed that the fluorescence quenching of HSA by diosmetin was a static quenching procedure. The binding constants and number of binding sites were evaluated at different temperatures. The RLS spectra and AFM images showed that the dimension of the individual HSA molecules were larger after interaction with diosmetin. The thermodynamic parameters, ΔH° and ΔS° were calculated to be -24.56 kJ mol(-1) and 14.67 J mol(-1) K(-1), respectively, suggesting that the binding of diosmtin to HSA was driven mainly by hydrophobic interactions and hydrogen bonds. The displacement studies and denaturation experiments in the presence of urea indicated site I as the main binding site for diosmetin on HSA. The binding distance between diosmetin and HSA was determined to be 3.54 nm based on the Förster theory. Analysis of CD and FT-IR spectra demonstrated that HSA conformation was slightly altered in the presence of diosmetin.
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Affiliation(s)
- Guowen Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
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37
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Jana S, Dalapati S, Ghosh S, Guchhait N. Binding interaction between plasma protein bovine serum albumin and flexible charge transfer fluorophore: A spectroscopic study in combination with molecular docking and molecular dynamics simulation. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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38
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Tatikolov AS. Polymethine dyes as spectral-fluorescent probes for biomacromolecules. Journal of Photochemistry and Photobiology C: Photochemistry Reviews 2012; 13:55-90. [DOI: 10.1016/j.jphotochemrev.2011.11.001] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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39
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Ghosh S, Jana S, Guchhait N. Domain Specific Association of Small Fluorescent Probe trans-3-(4-Monomethylaminophenyl)-Acrylonitrile (MMAPA) with Bovine Serum Albumin (BSA) and Its Dissociation from Protein Binding Sites by Ag Nanoparticles: Spectroscopic and Molecular Docking Study. J Phys Chem B 2012; 116:1155-63. [DOI: 10.1021/jp2094752] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shalini Ghosh
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India
| | - Sankar Jana
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India
| | - Nikhil Guchhait
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata-700009, India
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40
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Jana S, Ghosh S, Dalapati S, Guchhait N. Exploring structural change of protein bovine serum albumin by external perturbation using extrinsic fluorescence probe: spectroscopic measurement, molecular docking and molecular dynamics simulation. Photochem Photobiol Sci 2012; 11:323-32. [DOI: 10.1039/c1pp05180f] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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41
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Sandhya B, Hegde AH, Kalanur SS, Katrahalli U, Seetharamappa J. Interaction of triprolidine hydrochloride with serum albumins: Thermodynamic and binding characteristics, and influence of site probes. J Pharm Biomed Anal 2011; 54:1180-6. [DOI: 10.1016/j.jpba.2010.12.012] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Revised: 12/06/2010] [Accepted: 12/09/2010] [Indexed: 11/25/2022]
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42
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Punith R, Hegde AH, Jaldappagari S. Binding of an Anti-inflammatory Drug Lornoxicam with Blood Proteins: Insights from Spectroscopic Investigations. J Fluoresc 2010; 21:487-95. [DOI: 10.1007/s10895-010-0735-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2010] [Accepted: 09/28/2010] [Indexed: 10/19/2022]
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43
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Bose D, Sarkar D, Chattopadhyay N. Probing the binding interaction of a phenazinium dye with serum transport proteins: a combined fluorometric and circular dichroism study. Photochem Photobiol 2010; 86:538-44. [PMID: 20113428 DOI: 10.1111/j.1751-1097.2009.00688.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present investigation, an attempt has been made to study the interaction of phenosafranin (PSF), a cationic phenazinium dye with the transport proteins, bovine serum albumin (BSA) and human serum albumin (HSA), employing steady-state and time-resolved fluorometric and circular dichroism (CD) techniques. The photophysical properties of the dye are altered on binding with the serum proteins. An explicit study with respect to the modification of the fluorescence and fluorescence anisotropy upon binding, effect of denaturant, fluorescence lifetime and CD measurements reveal that the dye binds to both BSA and HSA with almost the same affinity. Far-UV CD spectra indicate a decrease in the percentage of alpha-helicity only for BSA upon binding with the probe. Near-UV CD responses indicate an alteration in the tertiary structure of both the transport proteins because of binding.
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Affiliation(s)
- Debosreeta Bose
- Department of Chemistry, Jadavpur University, Kolkata, India
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