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1f61

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[[Image:1f61.gif|left|200px]]
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{{Structure
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|PDB= 1f61 |SIZE=350|CAPTION= <scene name='initialview01'>1f61</scene>, resolution 2.00&Aring;
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Isocitrate_lyase Isocitrate lyase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.3.1 4.1.3.1] </span>
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{{STRUCTURE_1f61| PDB=1f61 | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f61 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f61 OCA], [http://www.ebi.ac.uk/pdbsum/1f61 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1f61 RCSB]</span>
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'''CRYSTAL STRUCTURE OF ISOCITRATE LYASE FROM MYCOBACTERIUM TUBERCULOSIS'''
'''CRYSTAL STRUCTURE OF ISOCITRATE LYASE FROM MYCOBACTERIUM TUBERCULOSIS'''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 15:56:50 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 20:16:34 2008''
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Revision as of 12:56, 2 May 2008

Template:STRUCTURE 1f61

CRYSTAL STRUCTURE OF ISOCITRATE LYASE FROM MYCOBACTERIUM TUBERCULOSIS


Overview

Isocitrate lyase (ICL) plays a pivotal role in the persistence of Mycobacterium tuberculosis in mice by sustaining intracellular infection in inflammatory macrophages. The enzyme allows net carbon gain by diverting acetyl-CoA from beta-oxidation of fatty acids into the glyoxylate shunt pathway. Given its potential as a drug target against persistent infections, we solved its structure without ligand and in complex with two inhibitors. Covalent modification of an active site residue, Cys 191, by the inhibitor 3-bromopyruvate traps the enzyme in a catalytic conformation with the active site completely inaccessible to solvent. The structure of a C191S mutant of the enzyme with the inhibitor 3-nitropropionate provides further insight into the reaction mechanism.

About this Structure

1F61 is a Single protein structure of sequence from Mycobacterium tuberculosis. Full crystallographic information is available from OCA.

Reference

Structure of isocitrate lyase, a persistence factor of Mycobacterium tuberculosis., Sharma V, Sharma S, Hoener zu Bentrup K, McKinney JD, Russell DG, Jacobs WR Jr, Sacchettini JC, Nat Struct Biol. 2000 Aug;7(8):663-8. PMID:10932251 Page seeded by OCA on Fri May 2 15:56:50 2008

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