1
|
Vonlanthen M, Rojas‐Montoya SM, Cuétara‐Guadarrama F, Martínez‐Serrano RD, Burillo G, Rivera E. Coumarin Grafted Polyethylene Matrix as Colorimetric and Fluorescent Chemosensor for Metal Ions. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000242] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mireille Vonlanthen
- Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| | - Sandra M. Rojas‐Montoya
- Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| | - Fabián Cuétara‐Guadarrama
- Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| | - Ricardo D. Martínez‐Serrano
- Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| | - Guillermina Burillo
- Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| | - Ernesto Rivera
- Instituto de Investigaciones en Materiales Universidad Nacional Autónoma de México Circuito Exterior Ciudad Universitaria C.P. 04510 Ciudad de México Mexico City México
| |
Collapse
|
2
|
Matyašovský J, Hocek M. 2-Substituted 2'-deoxyinosine 5'-triphosphates as substrates for polymerase synthesis of minor-groove-modified DNA and effects on restriction endonuclease cleavage. Org Biomol Chem 2020; 18:255-262. [PMID: 31815989 DOI: 10.1039/c9ob02502b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Five 2-substituted 2'-deoxyinosine triphosphates (dRITP) were synthesized and tested as substrates in enzymatic synthesis of minor-groove base-modified DNA. Only 2-methyl and 2-vinyl derivatives proved to be good substrates for Therminator DNA polymerase, whilst all other dRITPs and other tested DNA polymerases did not give full length products in primer extension. The DNA containing 2-vinylhypoxanthine was then further modified through thiol-ene reactions with thiols. Cross-linking reaction between cysteine-containing minor-groove binding dodecapeptide and DNA proceeded thanks to the proximity effect between thiol and vinyl groups inside the minor groove. 2-Substituted dIRTPs and also previously prepared 2-substituted 2'-deoxyadenosine triphosphates (dRATP) were then used for enzymatic synthesis of minor-groove modified DNA to study the effect of minor-groove modifications on cleavage of DNA by type II restriction endonucleases (REs). Although the REs should recognize the sequence through H-bonds in the major groove, some minor-groove modifications also had an inhibiting effect on the cleavage.
Collapse
Affiliation(s)
- Ján Matyašovský
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo namesti 2, CZ-16610 Prague 6, Czech Republic.
| | | |
Collapse
|
3
|
The Fragment-Based Development of a Benzofuran Hit as a New Class of Escherichia coli DsbA Inhibitors. Molecules 2019; 24:molecules24203756. [PMID: 31635355 PMCID: PMC6832960 DOI: 10.3390/molecules24203756] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 11/17/2022] Open
Abstract
A fragment-based drug discovery approach was taken to target the thiol-disulfide oxidoreductase enzyme DsbA from Escherichia coli (EcDsbA). This enzyme is critical for the correct folding of virulence factors in many pathogenic Gram-negative bacteria, and small molecule inhibitors can potentially be developed as anti-virulence compounds. Biophysical screening of a library of fragments identified several classes of fragments with affinity to EcDsbA. One hit with high mM affinity, 2-(6-bromobenzofuran-3-yl)acetic acid (6), was chemically elaborated at several positions around the scaffold. X-ray crystal structures of the elaborated analogues showed binding in the hydrophobic binding groove adjacent to the catalytic disulfide bond of EcDsbA. Binding affinity was calculated based on NMR studies and compounds 25 and 28 were identified as the highest affinity binders with dissociation constants (KD) of 326 ± 25 and 341 ± 57 µM respectively. This work suggests the potential to develop benzofuran fragments into a novel class of EcDsbA inhibitors.
Collapse
|
4
|
Lizzul-Jurse A, Bailly L, Hubert-Roux M, Afonso C, Renard PY, Sabot C. Readily functionalizable phosphonium-tagged fluorescent coumarins for enhanced detection of conjugates by mass spectrometry. Org Biomol Chem 2018; 14:7777-91. [PMID: 27470182 DOI: 10.1039/c6ob01080f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent coumarins are an important class of small-molecule organic fluorophores ubiquitous in different well-established and emerging fields of research including, among others, biochemistry and chemical biology. The present work aims at covering the poor detectability of coumarin-based conjugates by mass spectrometry while keeping important photophysical properties of the coumarin core. In this context, the synthesis of readily functionalizable phosphonium-tagged coumarin derivatives enabling a dual mass-tag and fluorescence labelling of analytes or (bio)molecules of interest through a single-step protocol, is reported. The utility of these coumarins is illustrated through the preparation of fluorogenic substrates that facilitated identification of the peptide fragment released by specific proteolytic cleavages.
Collapse
Affiliation(s)
- Antoine Lizzul-Jurse
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Laetitia Bailly
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Marie Hubert-Roux
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Carlos Afonso
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Pierre-Yves Renard
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| | - Cyrille Sabot
- Normandie Univ, COBRA, UMR 6014 & FR 3038, Univ Rouen-Normandie, INSA Rouen, CNRS, 1 rue Tesnière 76821 Mont-Saint-Aignan, Cedex, France.
| |
Collapse
|
5
|
Xu Y, Shi W, He X, Wu X, Li X, Ma H. Facile and Sensitive Method for Protein Kinase A Activity Assay Based on Fluorescent Off-On PolyU-peptide Assembly. Anal Chem 2017; 89:10980-10984. [PMID: 28937207 DOI: 10.1021/acs.analchem.7b02815] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Phosphorylation mediated by protein kinases plays a pivotal role in metabolic and cell-signaling processes, and the dysfunction of protein kinases such as protein kinase A (PKA) may induce several human diseases. Therefore, it is of great significance to develop a facile and effective method for PKA activity assay and high-throughput screening of inhibitors. Herein, we develop a new fluorescent off-on method for PKA assay based on the assembly of anionic polyuridylic acid (polyU) and cationic fluorescent peptide. The phosphorylation of the peptide disrupts its electrostatic binding with polyU, suppresses the concentration quenching effect of polyU, and thus causes fluorescence recovery. The recovered fluorescence intensity at 585 nm is directly proportional to the PKA activity in the range of 0.1-3.2 U/mL with a detection limit of 0.05 U/mL. Using our method, the PKA activity in HeLa cell lysate is determined to be 58.2 ± 5.1 U/mg protein. The method has also been employed to evaluate the inhibitory effect of PKA inhibitors with satisfactory results and may be expected to be a promising candidate for facile and cost-effective assay of kinase activity and high-throughput inhibitor screening.
Collapse
Affiliation(s)
- Yanhui Xu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| | - Wen Shi
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| | - Xinyuan He
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Xiaofeng Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Xiaohua Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Huimin Ma
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.,University of Chinese Academy of Sciences , Beijing 100049, China
| |
Collapse
|
6
|
Mori S, Hirano T, Takaguchi A, Fujiwara T, Okazaki Y, Kagechika H. Selective Reagent for Detection ofN-ε-Monomethylation of a Peptide Lysine Residue through SNAr Reaction. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700488] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shuichi Mori
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| | - Tomoya Hirano
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| | - Asuka Takaguchi
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| | - Takashi Fujiwara
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| | - Yusuke Okazaki
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University (TMDU); 2-3-10 Kanda-Surugadai, Chiyoda-ku 101-0062 Tokyo Japan
| |
Collapse
|
7
|
Matyašovský J, Perlíková P, Malnuit V, Pohl R, Hocek M. 2-Substituted dATP Derivatives as Building Blocks for Polymerase-Catalyzed Synthesis of DNA Modified in the Minor Groove. Angew Chem Int Ed Engl 2016; 55:15856-15859. [PMID: 27879047 PMCID: PMC6680173 DOI: 10.1002/anie.201609007] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Indexed: 12/11/2022]
Abstract
2'-Deoxyadenosine triphosphate (dATP) derivatives bearing diverse substituents (Cl, NH2 , CH3 , vinyl, ethynyl, and phenyl) at position 2 were prepared and tested as substrates for DNA polymerases. The 2-phenyl-dATP was not a substrate for DNA polymerases, but the dATPs bearing smaller substituents were good substrates in primer-extension experiments, producing DNA substituted in the minor groove. The vinyl-modified DNA was applied in thiol-ene addition and the ethynyl-modified DNA was applied in a CuAAC click reaction to form DNA labelled with fluorescent dyes in the minor groove.
Collapse
Affiliation(s)
- Ján Matyašovský
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610, Prague 6, Czech Republic
| | - Pavla Perlíková
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610, Prague 6, Czech Republic
| | - Vincent Malnuit
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610, Prague 6, Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610, Prague 6, Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nam. 2, 16610, Prague 6, Czech Republic.,Department of Organic Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 12843, Prague 2, Czech Republic
| |
Collapse
|
8
|
Matyašovský J, Perlíková P, Malnuit V, Pohl R, Hocek M. 2-Substituted dATP Derivatives as Building Blocks for Polymerase-Catalyzed Synthesis of DNA Modified in the Minor Groove. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ján Matyašovský
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 16610 Prague 6 Czech Republic
| | - Pavla Perlíková
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 16610 Prague 6 Czech Republic
| | - Vincent Malnuit
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 16610 Prague 6 Czech Republic
| | - Radek Pohl
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 16610 Prague 6 Czech Republic
| | - Michal Hocek
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Flemingovo nam. 2 16610 Prague 6 Czech Republic
- Department of Organic Chemistry, Faculty of Science; Charles University in Prague; Hlavova 8 12843 Prague 2 Czech Republic
| |
Collapse
|
9
|
Affiliation(s)
| | - Bim Graham
- Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, VIC, Australia
| | | | - Kellie L. Tuck
- School of Chemistry, Monash University, Clayton, VIC, Australia
| |
Collapse
|
10
|
Togashi M, Terai T, Kojima H, Hanaoka K, Igarashi K, Hirata Y, Urano Y, Nagano T. Practical fluorescence detection of acrolein in human plasma via a two-step tethering approach. Chem Commun (Camb) 2015; 50:14946-8. [PMID: 24944098 DOI: 10.1039/c4cc02578d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Acrolein, a cytotoxic α,β-unsaturated aldehyde and disease biomarker, was determined in plasma by means of a novel tethering strategy using Michael addition of the compound to a fluorescent dye, followed by immobilization of the product on microbeads via the aldehyde moiety. Elevation of blood acrolein was detected in mice treated with an anticancer agent cyclophosphamide, which releases acrolein upon activation. This method should be suitable for high-throughput diagnostic and clinical application.
Collapse
Affiliation(s)
- Masataka Togashi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Helmer D, Rink I, Dalton JAR, Brahm K, Jöst M, Nargang TM, Blum W, Wadhwani P, Brenner-Weiss G, Rapp BE, Giraldo J, Schmitz K. Rational design of a peptide capture agent for CXCL8 based on a model of the CXCL8:CXCR1 complex. RSC Adv 2015. [DOI: 10.1039/c4ra13749c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A CXCL8-binding peptide designed from the interaction sites of CXCR1 with CXCL8 serves as a capture agent and inhibits neutrophil migration.
Collapse
|
12
|
Wu J, Sheng R, Liu W, Wang P, Ma J, Zhang H, Zhuang X. Reversible Fluorescent Probe for Highly Selective and Sensitive Detection of Mercapto Biomolecules. Inorg Chem 2011; 50:6543-51. [DOI: 10.1021/ic200181p] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiasheng Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Ruilong Sheng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Weimin Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Pengfei Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Jingjin Ma
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Hongyan Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Xiaoqing Zhuang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| |
Collapse
|
13
|
Kim M, Shin DS, Kim J, Lee YS. Substrate screening of protein kinases: detection methods and combinatorial peptide libraries. Biopolymers 2011; 94:753-62. [PMID: 20564046 DOI: 10.1002/bip.21506] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The study of protein kinases has become a matter of great importance in the development of new drugs for the treatment of diseases, including cancer and inflammation. Substrate screening is the first step in the fundamental investigation of protein kinases and the development of inhibitors for use in drug discovery. Towards this goal, various studies have been reported regarding the development of phospho-peptide detection methods and the screening of phosphorylated peptide sites by protein kinases. This review introduces the detection methods for phosphorylation events using the reagents with (γ(32)P)ATP, ligand-linked ATP, phospho-peptide-specific antibodies and metal chelating compounds. Chemical modification methods using β-elimination for the detection of phospho-Ser/Thr peptides are introduced as well. In addition, the implementations of combinatorial peptide libraries for screening peptide substrates of protein kinases are discussed. The phage display approach has been suggested as an alternative method of using synthetic peptides for screening the substrate specificities of protein kinase. However, a solid phase assay using a peptide library-bound polymer resin or a peptide-arrayed glass chip is preferred for high throughput screening (HTS).
Collapse
Affiliation(s)
- Mira Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744 Korea
| | | | | | | |
Collapse
|
14
|
Kim M, Park YS, Shin DS, Kim J, Kim BG, Lee YS. Antibody-free peptide substrate screening of serine/threonine kinase (protein kinase A) with a biotinylated detection probe. Anal Biochem 2011; 413:30-5. [PMID: 21310143 DOI: 10.1016/j.ab.2011.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 01/07/2011] [Accepted: 02/02/2011] [Indexed: 01/27/2023]
Abstract
Being different from anti-phosphotyrosine antibodies, anti-phosphoserine- or anti-phosphothreonine-specific antibodies with high affinity for the detection of serine/threonine kinase substrates are not readily available. Therefore, chemical modification methods were developed for the detection of phosphoserine or threonine in the screening of protein kinase substrates based on β-elimination and Michael addition. We have developed a biotin-based detection probe for identification of the phosphorylated serine or threonine residue. A biotin derivative induced a color reaction using alkaline phosphate-conjugated streptavidin that amplified the signal. It was effective for the detection and separation of the target peptide on the resin. The detection probe was successfully used in identifying PKA substrates from peptide libraries on resin beads. The peptide library was prepared as a ladder-type, such that the active peptides on the colored resin beads were readily sequenced with the truncated peptide fragments by MALDI-TOF/MS analysis after releasing the peptides from the resin bead through photolysis.
Collapse
Affiliation(s)
- Mira Kim
- School of Chemical and Biological Engineering, Seoul National University, San 56-1, Shilim-dong, Kwnak-gu, Seoul 151-744, South Korea.
| | | | | | | | | | | |
Collapse
|
15
|
Kim EM, Kim J, Kim YG, Lee P, Shin DS, Kim M, Hahn JS, Lee YS, Kim BG. Development of high-throughput phosphorylation profiling method for identification of Ser/Thr kinase specificity. J Pept Sci 2010; 17:392-7. [DOI: 10.1002/psc.1312] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 09/07/2010] [Accepted: 09/14/2010] [Indexed: 01/21/2023]
|
16
|
Kim YG, Shin DS, Kim EM, Park HY, Lee CS, Kim JH, Lee BS, Lee YS, Kim BG. High-throughput identification of substrate specificity for protein kinase by using an improved one-bead-one-compound library approach. Angew Chem Int Ed Engl 2009; 46:5408-11. [PMID: 17554743 DOI: 10.1002/anie.200700195] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yun-Gon Kim
- Interdisciplinary Program for Biochemical Engineering and Biotechnology, School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Sakamoto T, Inoue MA, Ojida A, Hamachi I. Real-time fluorescence monitoring of GSK3β-catalyzed phosphoryation by use of a BODIPY-based Zn(II)–Dpa chemosensor. Bioorg Med Chem Lett 2009; 19:4175-7. [DOI: 10.1016/j.bmcl.2009.05.121] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2009] [Revised: 05/25/2009] [Accepted: 05/28/2009] [Indexed: 11/24/2022]
|
18
|
González-Vera JA, Luković E, Imperiali B. A rapid method for generation of selective Sox-based chemosensors of Ser/Thr kinases using combinatorial peptide libraries. Bioorg Med Chem Lett 2009; 19:1258-60. [PMID: 19157873 PMCID: PMC2838374 DOI: 10.1016/j.bmcl.2008.12.090] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2008] [Accepted: 12/12/2008] [Indexed: 10/21/2022]
Abstract
A novel screening method to identify selective Sox-based fluorescent probes for Ser/Thr kinases has been developed. Peptide libraries were exposed to a kinase of interest and the products of the timed reaction were analyzed by MALDI-TOF. To demonstrate the potential of this methodology, a selective substrate for Aurora A kinase was identified that showed a 7-fold improvement in catalytic efficiency over the best substrate described to date in the literature.
Collapse
Affiliation(s)
- Juan A González-Vera
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | | | | |
Collapse
|
19
|
Akita S, Umezawa N, Kato N, Higuchi T. Array-based fluorescence assay for serine/threonine kinases using specific chemical reaction. Bioorg Med Chem 2008; 16:7788-94. [PMID: 18656369 DOI: 10.1016/j.bmc.2008.07.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2008] [Revised: 06/30/2008] [Accepted: 07/01/2008] [Indexed: 11/16/2022]
Abstract
We report herein the development of an efficient fluorescence assay for serine/threonine kinases using a peptide array. Our approach is based on chemical reactions specific to phosphoserine and phosphothreonine residues, that is, base-mediated beta-elimination of the phosphate group and subsequent Michael addition of a thiol-containing fluorescent reagent. This procedure enables the covalent introduction of a fluorescent moiety into the phosphorylated peptide. Novel fluorescent reagents were designed for this purpose and synthesized. With these reagents, protein kinase A (PKA) and Akt-1 activities were readily detected. Our method can also be used to measure the activity of kinase inhibitors. This assay is expected to be widely applicable in kinase research.
Collapse
Affiliation(s)
- Shoji Akita
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
| | | | | | | |
Collapse
|
20
|
UMEZAWA N, AKITA S, KAMOTO M, HIGUCHI T. Selective Recognition and Detection of Biomacromolecules Utilizing Chemical Property of Amino Acid or Peptide. YAKUGAKU ZASSHI 2007; 127:1915-25. [DOI: 10.1248/yakushi.127.1915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Naoki UMEZAWA
- Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Shoji AKITA
- Graduate School of Pharmaceutical Sciences, Nagoya City University
| | - Mie KAMOTO
- Graduate School of Pharmaceutical Sciences, Nagoya City University
| | | |
Collapse
|
21
|
Kim YG, Shin DS, Kim EM, Park HY, Lee CS, Kim JH, Lee BS, Lee YS, Kim BG. High-Throughput Identification of Substrate Specificity for Protein Kinase by Using an Improved One-Bead-One-Compound Library Approach. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
22
|
Nath S, Maitra U. A simple and general strategy for the design of fluorescent cation sensor beads. Org Lett 2007; 8:3239-42. [PMID: 16836375 DOI: 10.1021/ol061082k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
[Structure: see text] Chenodeoxycholic acid based PET sensors for alkali metal ions have been immobilized on Merrifield resin and on Tentagel. The fluorescence of the sensor beads is enhanced upon binding the cations. The modular nature of the sensor allows designing different sensors based on this concept.
Collapse
Affiliation(s)
- Suvadeep Nath
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, India
| | | |
Collapse
|