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Hossain MAA, Islam T, Joy MTR, Kowser Z, Ahmed MZ, Rehman MT, AlAjmi MF, Mahbub S, Goni MA, Hoque MA, Kabir SE. Interaction between gastric enzyme pepsin and tetradecyltrimethylammonium bromide in presence of sodium electrolytes: Exploration of micellization behavior. Int J Biol Macromol 2023; 253:127478. [PMID: 37866567 DOI: 10.1016/j.ijbiomac.2023.127478] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/13/2023] [Accepted: 10/15/2023] [Indexed: 10/24/2023]
Abstract
Pepsin is a proteolytic enzyme used in the treatment of digestive disorders. In this study, we investigated the physicochemical properties of the tetradecyltrimethylammonium bromide (TTAB) and pepsin protein mixture in various sodium salt media within a temperature range of 300.55-320.55 K with 5 K intervals. The conductometric study of the TTAB+pepsin mixture revealed a reduction in the critical micelle concentration (CMC) in electrolyte media. The micellization of TTAB was delayed in the presence of pepsin. The CMC of the TTAB + pepsin mixture was found to depend on the concentrations of electrolytes and protein, as well as the temperature variations. The aggregation of the TTAB+pepsin mixture was hindered as a function of [pepsin] and increasing temperatures, while micellization was promoted in aqueous electrolyte solutions. The negative free energy changes (∆Gm0) indicated the spontaneous aggregation of the TTAB+pepsin mixture. Changes in enthalpy, entropy, molar heat capacities, transfer properties, and enthalpy-entropy compensation variables were calculated and illustrated rationally. The interaction forces between TTAB and pepsin protein in the experimental solvents were primarily hydrophobic and electrostatic (ion-dipole) in nature. An analysis of molecular docking revealed hydrophobic interactions as the main stabilizing forces in the TTAB-pepsin complex.
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Affiliation(s)
- Md Al Amin Hossain
- Department of Chemistry, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Tamanna Islam
- Department of Chemistry, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Md Tuhinur R Joy
- Department of Chemistry, Jashore University of Science and Technology, Jashore 7408, Bangladesh.
| | - Zannatul Kowser
- Department of Chemistry, Jashore University of Science and Technology, Jashore 7408, Bangladesh
| | - Mohammad Z Ahmed
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Md Tabish Rehman
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed F AlAjmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Shamim Mahbub
- Nuclear Safety, Security & Safeguards Division, Bangladesh Atomic Energy Regulatory Authority, Agargaon, Dhaka 1207, Bangladesh
| | - Md Abdul Goni
- Department of Biological and Physical Sciences, South Carolina State University, Orangeburg, SC 29117, USA
| | - Md Anamul Hoque
- Department of Chemistry, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
| | - Shariff E Kabir
- Department of Chemistry, Jagannath University, Dhaka 1100, Bangladesh
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Akther T, Islam MM, Kowser Z, Matsumoto T, Tanaka J, Rahman S, Alodhayb A, Georghiou PE, Redshaw C, Yamato T. Synthesis and Structures of [2.
n
]Metacyclophan‐1‐enes and their Conversion to Highly Strained [2.
n
]Metacyclophane‐1‐ynes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000548] [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: 11/06/2022]
Affiliation(s)
- Thamina Akther
- Department of Applied Chemistry Faculty of Science and Engineering Saga University Honjo‐machi 1 840‐8502 Saga Japan
| | - Md. Monarul Islam
- Department of Applied Chemistry Faculty of Science and Engineering Saga University Honjo‐machi 1 840‐8502 Saga Japan
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) 1205 Dhaka Dhanmondi Bangladesh
| | - Zannatul Kowser
- Department of Applied Chemistry Faculty of Science and Engineering Saga University Honjo‐machi 1 840‐8502 Saga Japan
- Department of Chemistry Jashore University of Science and Technology (JUST) 7408 Jashore Bangladesh
| | - Taisuke Matsumoto
- Institute of Materials Chemistry and Engineering Kyushu University 6‐1, Kasugakoen 816‐8580 Kasuga Japan
| | - Junji Tanaka
- Institute of Materials Chemistry and Engineering Kyushu University 6‐1, Kasugakoen 816‐8580 Kasuga Japan
| | - Shofiur Rahman
- Department of Chemistry Memorial University of Newfoundland A1B 3X7 St. John's Newfoundland and Labrador Canada
- Aramco Laboratory for Applied Sensing Research King Abdullah Institute for Nanotechnology King Saudi University 11451 Riyadh Saudi Arabia
| | - Abdullah Alodhayb
- Aramco Laboratory for Applied Sensing Research King Abdullah Institute for Nanotechnology King Saudi University 11451 Riyadh Saudi Arabia
- Research Chair for Tribology, Surface, and Interface Sciences, Department of Physics and Astronomy, College of Science King Saud University 11451 Riyadh Saudi Arabia
| | - Paris E. Georghiou
- Department of Chemistry Memorial University of Newfoundland A1B 3X7 St. John's Newfoundland and Labrador Canada
| | - Carl Redshaw
- Department of Chemistry and Biochemistry The University of Hull Cottingham Road HU6 7RX Hull Yorkshire UK
| | - Takehiko Yamato
- Department of Applied Chemistry Faculty of Science and Engineering Saga University Honjo‐machi 1 840‐8502 Saga Japan
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Rayhan U, Kowser Z, Islam MN, Redshaw C, Yamato T. Reduction of phenylacetylenes using Raney Ni–Al alloy, Al powder in the presence of noble metal catalysts in water. ARKIVOC 2017. [DOI: 10.24820/ark.5550190.p010.277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Kowser Z, Rayhan U, Rahman S, Georghiou PE, Yamato T. A fluorescence “turn-on” sensor for multiple analytes: OAc− and F− triggered fluorogenic detection of Zn2+ in a co-operative fashion. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kowser Z, Tomiyasu H, Jiang X, Rayhan U, Redshaw C, Yamato T. Solvent effect and fluorescence response of the 7-tert-butylpyrene-dipicolylamine linkage for the selective and sensitive response toward Zn(ii) and Cd(ii) ions. NEW J CHEM 2015. [DOI: 10.1039/c4nj02363c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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 complexation behaviour of new fluorescent sensors based on 7-tert-butylpyrene towards Zn2+and Cd2+in different solvent systems has been investigated.
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Affiliation(s)
- Zannatul Kowser
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga 840-8502
- Japan
| | - Hirotsugu Tomiyasu
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga 840-8502
- Japan
| | - Xuekai Jiang
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga 840-8502
- Japan
| | - Ummey Rayhan
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga 840-8502
- Japan
| | | | - Takehiko Yamato
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Saga University
- Saga 840-8502
- Japan
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