2fq6
From Proteopedia
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| , resolution 1.78Å | |||||||
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| Ligands: | |||||||
| Gene: | metC (Escherichia coli) | ||||||
| Activity: | Cystathionine beta-lyase, with EC number 4.4.1.8 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Cystathionine beta-lyase (cbl) from escherichia coli in complex with n-hydrazinocarbonylmethyl-2-trifluoromethyl-benzamide
Overview
The biosynthesis of methionine is an attractive antibiotic target given its importance in protein and DNA metabolism and its absence in mammals. We have performed a high-throughput screen of the methionine biosynthesis enzyme cystathionine beta-lyase (CBL) against a library of 50 000 small molecules and have identified several compounds that inhibit CBL enzyme activity in vitro. These hit molecules were of two classes: those that blocked CBL activity with mixed steady-state inhibition and those that covalently interacted with the enzyme at the active site pyridoxal phosphate cofactor with slow-binding inhibition kinetics. We determined the crystal structure of one of the slow-binding inhibitors in complex with CBL and used this structure as a guide in the synthesis of a small, focused library of analogues, some of which had improved enzyme inhibition properties. These studies provide the first lead molecules for antimicrobial agents that target cystathionine beta-lyase in methionine biosynthesis.
About this Structure
2FQ6 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
Inhibitors of bacterial cystathionine beta-lyase: leads for new antimicrobial agents and probes of enzyme structure and function., Ejim LJ, Blanchard JE, Koteva KP, Sumerfield R, Elowe NH, Chechetto JD, Brown ED, Junop MS, Wright GD, J Med Chem. 2007 Feb 22;50(4):755-64. PMID:17300162
Page seeded by OCA on Thu Mar 20 16:55:32 2008
