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| | <StructureSection load='5eep' size='340' side='right'caption='[[5eep]], [[Resolution|resolution]] 2.40Å' scene=''> | | <StructureSection load='5eep' size='340' side='right'caption='[[5eep]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5eep]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EEP OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5EEP FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5eep]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5EEP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5EEP FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ECONIH1_16050, SK78_01951 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</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]] 2.4Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5eep FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5eep OCA], [http://pdbe.org/5eep PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5eep RCSB], [http://www.ebi.ac.uk/pdbsum/5eep PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5eep 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=5eep FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5eep OCA], [https://pdbe.org/5eep PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5eep RCSB], [https://www.ebi.ac.uk/pdbsum/5eep PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5eep ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/CSDE_ECOLI CSDE_ECOLI] Stimulates the cysteine desulfurase activity of CsdA. Contains a cysteine residue (Cys-61) that acts to accept sulfur liberated via the desulfurase activity of CsdA. May be able to transfer sulfur to TcdA/CsdL. Seems to support the function of TcdA in the generation of cyclic threonylcarbamoyladenosine at position 37 (ct(6)A37) in tRNAs that read codons beginning with adenine. Does not appear to participate in Fe/S biogenesis.<ref>PMID:15901727</ref> <ref>PMID:20054882</ref> <ref>PMID:23242255</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bacillus coli migula 1895]] | + | [[Category: Escherichia coli]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Park, S Y]] | + | [[Category: Park SY]] |
| - | [[Category: Csda interaction]]
| + | |
| - | [[Category: Ligase]]
| + | |
| - | [[Category: Sufe superfamily]]
| + | |
| - | [[Category: Sulfur utilization]]
| + | |
| - | [[Category: Sulfur-accepting protein]]
| + | |
| Structural highlights
Function
CSDE_ECOLI Stimulates the cysteine desulfurase activity of CsdA. Contains a cysteine residue (Cys-61) that acts to accept sulfur liberated via the desulfurase activity of CsdA. May be able to transfer sulfur to TcdA/CsdL. Seems to support the function of TcdA in the generation of cyclic threonylcarbamoyladenosine at position 37 (ct(6)A37) in tRNAs that read codons beginning with adenine. Does not appear to participate in Fe/S biogenesis.[1] [2] [3]
Publication Abstract from PubMed
Sulfur incorporations both in the biosynthesis of sulfur-containing cofactors and in the sulfur-modifications of certain tRNAs are all mediated by the sulfur initially delivered from the cysteine desulfurases. Sulfur generated as persulfide from cysteine is transferred to the sulfur acceptor protein to further allow delivery to the required steps within an enzymatic process. CsdA which is one of the three cysteine desulfurases identified in Escherichia coli transfers sulfur to the non Fe-S sulfur-acceptor CsdE, however, the consequence of CsdE accepted sulfur is mostly unknown. In this study, we report the 2.4A structure of free CsdE determined using X-ray crystallography, and compare the structure with the CsdE structure determined using NMR and also CsdE within the crystal CsdA-CsdE complex. Further analysis suggests that the positive electrostatic potential surfaces of CsdE may mediate interaction with a yet unidentified protein or possibly tRNA to deliver sulfur.
The crystal structure of Escherichia coli CsdE.,Kenne AN, Kim S, Park S Int J Biol Macromol. 2016 Jun;87:317-21. doi: 10.1016/j.ijbiomac.2016.02.071., Epub 2016 Mar 2. PMID:26944665[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Loiseau L, Ollagnier-de Choudens S, Lascoux D, Forest E, Fontecave M, Barras F. Analysis of the heteromeric CsdA-CsdE cysteine desulfurase, assisting Fe-S cluster biogenesis in Escherichia coli. J Biol Chem. 2005 Jul 22;280(29):26760-9. Epub 2005 May 18. PMID:15901727 doi:http://dx.doi.org/10.1074/jbc.M504067200
- ↑ Trotter V, Vinella D, Loiseau L, Ollagnier de Choudens S, Fontecave M, Barras F. The CsdA cysteine desulphurase promotes Fe/S biogenesis by recruiting Suf components and participates to a new sulphur transfer pathway by recruiting CsdL (ex-YgdL), a ubiquitin-modifying-like protein. Mol Microbiol. 2009 Dec;74(6):1527-42. PMID:20054882
- ↑ Miyauchi K, Kimura S, Suzuki T. A cyclic form of N6-threonylcarbamoyladenosine as a widely distributed tRNA hypermodification. Nat Chem Biol. 2013 Feb;9(2):105-11. doi: 10.1038/nchembio.1137. Epub 2012 Dec, 16. PMID:23242255 doi:http://dx.doi.org/10.1038/nchembio.1137
- ↑ Kenne AN, Kim S, Park S. The crystal structure of Escherichia coli CsdE. Int J Biol Macromol. 2016 Jun;87:317-21. doi: 10.1016/j.ijbiomac.2016.02.071., Epub 2016 Mar 2. PMID:26944665 doi:http://dx.doi.org/10.1016/j.ijbiomac.2016.02.071
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