1nwa

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{{STRUCTURE_1nwa| PDB=1nwa | SCENE= }}
{{STRUCTURE_1nwa| PDB=1nwa | SCENE= }}
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'''Structure of Mycobacterium tuberculosis Methionine Sulfoxide Reductase A in Complex with Protein-bound Methionine'''
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===Structure of Mycobacterium tuberculosis Methionine Sulfoxide Reductase A in Complex with Protein-bound Methionine===
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==Overview==
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Peptide methionine sulfoxide reductase (MsrA) repairs oxidative damage to methionine residues arising from reactive oxygen species and reactive nitrogen intermediates. MsrA activity is found in a wide variety of organisms, and it is implicated as one of the primary defenses against oxidative stress. Disruption of the gene encoding MsrA in several pathogenic bacteria responsible for infections in humans results in the loss of their ability to colonize host cells. Here, we present the X-ray crystal structure of MsrA from the pathogenic bacterium Mycobacterium tuberculosis refined to 1.5 A resolution. In contrast to the three catalytic cysteine residues found in previously characterized MsrA structures, M. tuberculosis MsrA represents a class containing only two functional cysteine residues. The structure reveals a methionine residue of one MsrA molecule bound at the active site of a neighboring molecule in the crystal lattice and thus serves as an excellent model for protein-bound methionine sulfoxide recognition and repair.
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(as it appears on PubMed at http://www.pubmed.gov), where 12837786 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12837786}}
==About this Structure==
==About this Structure==
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[[Category: Tb structural genomics consortium]]
[[Category: Tb structural genomics consortium]]
[[Category: Tbsgc]]
[[Category: Tbsgc]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 03:03:21 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:32:40 2008''

Revision as of 17:32, 27 July 2008

Image:1nwa.png

Template:STRUCTURE 1nwa

Structure of Mycobacterium tuberculosis Methionine Sulfoxide Reductase A in Complex with Protein-bound Methionine

Template:ABSTRACT PUBMED 12837786

About this Structure

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

Reference

Structure of Mycobacterium tuberculosis methionine sulfoxide reductase A in complex with protein-bound methionine., Taylor AB, Benglis DM Jr, Dhandayuthapani S, Hart PJ, J Bacteriol. 2003 Jul;185(14):4119-26. PMID:12837786

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