|
|
| Line 3: |
Line 3: |
| | <StructureSection load='3ics' size='340' side='right'caption='[[3ics]], [[Resolution|resolution]] 1.94Å' scene=''> | | <StructureSection load='3ics' size='340' side='right'caption='[[3ics]], [[Resolution|resolution]] 1.94Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3ics]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_anthracis_(strain_ames) Bacillus anthracis (strain ames)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ICS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ICS FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3ics]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_anthracis_str._Ames Bacillus anthracis str. Ames]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3ICS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3ICS FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.94Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=COA:COENZYME+A'>COA</scene>, <scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3icr|3icr]], [[3ict|3ict]]</div></td></tr>
| + | |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BA0774, BAS0736, BA_0774, GBAA_0774 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=198094 Bacillus anthracis (strain Ames)])</td></tr>
| + | |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3ics FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ics OCA], [https://pdbe.org/3ics PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ics RCSB], [https://www.ebi.ac.uk/pdbsum/3ics PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ics ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3ics FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ics OCA], [https://pdbe.org/3ics PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ics RCSB], [https://www.ebi.ac.uk/pdbsum/3ics PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ics ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/A0A6L7H7X4_BACAN A0A6L7H7X4_BACAN] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Line 36: |
Line 36: |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| | + | [[Category: Bacillus anthracis str. Ames]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Claiborne, A]] | + | [[Category: Claiborne A]] |
| - | [[Category: Wallen, J R]] | + | [[Category: Wallen JR]] |
| - | [[Category: Coenzyme some]]
| + | |
| - | [[Category: Flavin adenine dinucleotide]]
| + | |
| - | [[Category: Oxidoreductase]]
| + | |
| - | [[Category: Pyridine nucleotide-disulfide oxidoreductase class i]]
| + | |
| - | [[Category: Rhodanese]]
| + | |
| Structural highlights
Function
A0A6L7H7X4_BACAN
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Rhodanese homology domains (RHDs) play important roles in sulfur trafficking mechanisms essential to the biosynthesis of sulfur-containing cofactors and nucleosides. We have now determined the crystal structure at 2.10 A resolution for the Bacillus anthracis coenzyme A-disulfide reductase isoform (BaCoADR-RHD) containing a C-terminal RHD domain; this is the first structural representative of the multidomain proteins class of the rhodanese superfamily. The catalytic Cys44 of the CoADR module is separated by 25 A from the active-site Cys514' of the RHD domain from the complementary subunit. In stark contrast to the B. anthracis CoADR [Wallen, J. R., Paige, C., Mallett, T. C., Karplus, P. A., and Claiborne, A. (2008) Biochemistry 47, 5182-5193], the BaCoADR-RHD isoform does not catalyze the reduction of coenzyme A-disulfide, although both enzymes conserve the Cys-SSCoA redox center. NADH titrations have been combined with a synchrotron reduction protocol for examination of the structural and redox behavior of the Cys44-SSCoA center. The synchrotron-reduced (Cys44 + CoASH) structure reveals ordered binding for the adenosine 3'-phosphate 5'-pyrophosphate moiety of CoASH, but the absence of density for the pantetheine arm indicates that it is flexible within the reduced active site. Steady-state kinetic analyses with the alternate disulfide substrates methyl methanethiolsulfonate (MMTS) and 5,5'-dithiobis(2-nitrobenzoate) (DTNB), including the appropriate Cys --> Ser mutants, demonstrate that MMTS reduction occurs within the CoADR active site. NADH-dependent DTNB reduction, on the other hand, requires communication between Cys44 and Cys514', and we propose that reduction of the Cys44-SSCoA disulfide promotes the transfer of reducing equivalents to the RHD, with the swinging pantetheine arm serving as a ca. 20 A bridge.
Crystal structure and catalytic properties of Bacillus anthracis CoADR-RHD: implications for flavin-linked sulfur trafficking.,Wallen JR, Mallett TC, Boles W, Parsonage D, Furdui CM, Karplus PA, Claiborne A Biochemistry. 2009 Oct 13;48(40):9650-67. PMID:19725515[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Wallen JR, Mallett TC, Boles W, Parsonage D, Furdui CM, Karplus PA, Claiborne A. Crystal structure and catalytic properties of Bacillus anthracis CoADR-RHD: implications for flavin-linked sulfur trafficking. Biochemistry. 2009 Oct 13;48(40):9650-67. PMID:19725515 doi:10.1021/bi900887k
|
