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1su9
From Proteopedia
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| - | [[Image:1su9.jpg|left|200px]] | + | [[Image:1su9.jpg|left|200px]] |
| - | + | ||
| - | '''Reduced structure of the soluble domain of ResA''' | + | {{Structure |
| + | |PDB= 1su9 |SIZE=350|CAPTION= <scene name='initialview01'>1su9</scene>, resolution 1.95Å | ||
| + | |SITE= | ||
| + | |LIGAND= | ||
| + | |ACTIVITY= | ||
| + | |GENE= RESA, BSU23150 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1423 Bacillus subtilis]) | ||
| + | }} | ||
| + | |||
| + | '''Reduced structure of the soluble domain of ResA''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1SU9 is a [ | + | 1SU9 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1SU9 OCA]. |
==Reference== | ==Reference== | ||
| - | Structural basis of Redox-coupled protein substrate selection by the cytochrome c biosynthesis protein ResA., Crow A, Acheson RM, Le Brun NE, Oubrie A, J Biol Chem. 2004 May 28;279(22):23654-60. Epub 2004 Mar 26. PMID:[http:// | + | Structural basis of Redox-coupled protein substrate selection by the cytochrome c biosynthesis protein ResA., Crow A, Acheson RM, Le Brun NE, Oubrie A, J Biol Chem. 2004 May 28;279(22):23654-60. Epub 2004 Mar 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15047692 15047692] |
[[Category: Bacillus subtilis]] | [[Category: Bacillus subtilis]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: thioredoxin-like domain]] | [[Category: thioredoxin-like domain]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:09:44 2008'' |
Revision as of 12:09, 20 March 2008
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| , resolution 1.95Å | |||||||
|---|---|---|---|---|---|---|---|
| Gene: | RESA, BSU23150 (Bacillus subtilis) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Reduced structure of the soluble domain of ResA
Overview
Post-translational maturation of cytochromes c involves the covalent attachment of heme to the Cys-Xxx-Xxx-Cys-His motif of the apo-cytochrome. For this process, the two cysteines of the motif must be in the reduced state. In bacteria, this is achieved by dedicated, membrane-bound thiol-disulfide oxidoreductases with a high reducing power, which are essential components of cytochrome c maturation systems and are also linked to cellular disulfide-bond formation machineries. Here we report high-resolution structures of oxidized and reduced states of a soluble, functional domain of one such oxidoreductase, ResA, from Bacillus subtilis. The structures elucidate the structural basis of the protein's high reducing power and reveal the largest redox-coupled conformational changes observed to date in any thioredoxin-like protein. These redox-coupled changes alter the protein surface and illustrate how the redox state of ResA predetermines to which substrate it binds. Furthermore, a polar cavity, present only in the reduced state, may confer specificity to recognize apo-cytochrome c. The described features of ResA are likely to be general for bacterial cytochrome c maturation systems.
About this Structure
1SU9 is a Single protein structure of sequence from Bacillus subtilis. Full crystallographic information is available from OCA.
Reference
Structural basis of Redox-coupled protein substrate selection by the cytochrome c biosynthesis protein ResA., Crow A, Acheson RM, Le Brun NE, Oubrie A, J Biol Chem. 2004 May 28;279(22):23654-60. Epub 2004 Mar 26. PMID:15047692
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