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| | ==Structure of the Shigella flexneri VapC mutant D98N crystal form 2== | | ==Structure of the Shigella flexneri VapC mutant D98N crystal form 2== |
| - | <StructureSection load='5ecy' size='340' side='right' caption='[[5ecy]], [[Resolution|resolution]] 2.00Å' scene=''> | + | <StructureSection load='5ecy' size='340' side='right'caption='[[5ecy]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5ecy]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/"shigella_paradysenteriae"_weldin_1927 "shigella paradysenteriae" weldin 1927]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ECY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ECY FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5ecy]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Shigella_flexneri Shigella flexneri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ECY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5ECY FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5ecd|5ecd]]</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]] 2Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">vapC, mvpA, stborf2, CP0245 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=623 "Shigella paradysenteriae" Weldin 1927])</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=5ecy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ecy OCA], [https://pdbe.org/5ecy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ecy RCSB], [https://www.ebi.ac.uk/pdbsum/5ecy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ecy ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ecy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ecy OCA], [http://pdbe.org/5ecy PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ecy RCSB], [http://www.ebi.ac.uk/pdbsum/5ecy PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ecy ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/VAPC_SHIFL VAPC_SHIFL]] Toxic component of a toxin-antitoxin (TA) module. A tRNA-(fMet) endonuclease, it cleaves both charged and uncharged tRNA-(fMet) between positions 38 and 39 at the anticodon stem-loop boundary. Does not cleave tRNA(Met), tRNA(Arg2), tRNA(His), tRNA(Leu), tRNA(Phe) tRNA(Thr1), tRNA(Tyr) or tRNA(Val). Overexpression in E.coli inhibits translation, leads to loss of cell growth and degradation of tRNA(fMet); these effects are neutralized by expression of cognate antitoxin VapB. The VapB/VapC complex probably regulates transcription of its own promoter.<ref>PMID:19400780</ref> <ref>PMID:21502523</ref> Ectopic overexpression in E.coli induces the YoeB toxin, but this is not the cause of VapC toxicity.<ref>PMID:19400780</ref> <ref>PMID:21502523</ref> | + | [https://www.uniprot.org/uniprot/VAPC_SHIFL VAPC_SHIFL] Toxic component of a toxin-antitoxin (TA) module. A tRNA-(fMet) endonuclease, it cleaves both charged and uncharged tRNA-(fMet) between positions 38 and 39 at the anticodon stem-loop boundary. Does not cleave tRNA(Met), tRNA(Arg2), tRNA(His), tRNA(Leu), tRNA(Phe) tRNA(Thr1), tRNA(Tyr) or tRNA(Val). Overexpression in E.coli inhibits translation, leads to loss of cell growth and degradation of tRNA(fMet); these effects are neutralized by expression of cognate antitoxin VapB. The VapB/VapC complex probably regulates transcription of its own promoter.<ref>PMID:19400780</ref> <ref>PMID:21502523</ref> Ectopic overexpression in E.coli induces the YoeB toxin, but this is not the cause of VapC toxicity.<ref>PMID:19400780</ref> <ref>PMID:21502523</ref> |
| | + | |
| | + | ==See Also== |
| | + | *[[Endonuclease 3D structures|Endonuclease 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Shigella paradysenteriae weldin 1927]] | + | [[Category: Large Structures]] |
| - | [[Category: Brodersen, D E]] | + | [[Category: Shigella flexneri]] |
| - | [[Category: Dedic, E]] | + | [[Category: Brodersen DE]] |
| - | [[Category: Xu, K]] | + | [[Category: Dedic E]] |
| - | [[Category: Hydrolase]] | + | [[Category: Xu K]] |
| - | [[Category: Pin-domain]]
| + | |
| - | [[Category: Toxin]]
| + | |
| Structural highlights
Function
VAPC_SHIFL Toxic component of a toxin-antitoxin (TA) module. A tRNA-(fMet) endonuclease, it cleaves both charged and uncharged tRNA-(fMet) between positions 38 and 39 at the anticodon stem-loop boundary. Does not cleave tRNA(Met), tRNA(Arg2), tRNA(His), tRNA(Leu), tRNA(Phe) tRNA(Thr1), tRNA(Tyr) or tRNA(Val). Overexpression in E.coli inhibits translation, leads to loss of cell growth and degradation of tRNA(fMet); these effects are neutralized by expression of cognate antitoxin VapB. The VapB/VapC complex probably regulates transcription of its own promoter.[1] [2] Ectopic overexpression in E.coli induces the YoeB toxin, but this is not the cause of VapC toxicity.[3] [4]
See Also
References
- ↑ Winther KS, Gerdes K. Ectopic production of VapCs from Enterobacteria inhibits translation and trans-activates YoeB mRNA interferase. Mol Microbiol. 2009 May;72(4):918-30. doi: 10.1111/j.1365-2958.2009.06694.x. Epub, 2009 Apr 14. PMID:19400780 doi:http://dx.doi.org/10.1111/j.1365-2958.2009.06694.x
- ↑ Winther KS, Gerdes K. Enteric virulence associated protein VapC inhibits translation by cleavage of initiator tRNA. Proc Natl Acad Sci U S A. 2011 May 3;108(18):7403-7. doi:, 10.1073/pnas.1019587108. Epub 2011 Apr 18. PMID:21502523 doi:http://dx.doi.org/10.1073/pnas.1019587108
- ↑ Winther KS, Gerdes K. Ectopic production of VapCs from Enterobacteria inhibits translation and trans-activates YoeB mRNA interferase. Mol Microbiol. 2009 May;72(4):918-30. doi: 10.1111/j.1365-2958.2009.06694.x. Epub, 2009 Apr 14. PMID:19400780 doi:http://dx.doi.org/10.1111/j.1365-2958.2009.06694.x
- ↑ Winther KS, Gerdes K. Enteric virulence associated protein VapC inhibits translation by cleavage of initiator tRNA. Proc Natl Acad Sci U S A. 2011 May 3;108(18):7403-7. doi:, 10.1073/pnas.1019587108. Epub 2011 Apr 18. PMID:21502523 doi:http://dx.doi.org/10.1073/pnas.1019587108
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