3tnd: Difference between revisions
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==Crystal structure of Shigella flexneri VapBC toxin-antitoxin complex== | |||
<StructureSection load='3tnd' size='340' side='right'caption='[[3tnd]], [[Resolution|resolution]] 2.70Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3tnd]] 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=3TND OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3TND FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></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=3tnd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tnd OCA], [https://pdbe.org/3tnd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3tnd RCSB], [https://www.ebi.ac.uk/pdbsum/3tnd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3tnd ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[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> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Shigella flexneri]] | |||
[[Category: Boggild A]] | |||
[[Category: Brodersen DE]] | |||
[[Category: Dienemann C]] | |||
[[Category: Gerdes K]] | |||
[[Category: Winther KS]] | |||
Latest revision as of 10:10, 1 March 2024
Crystal structure of Shigella flexneri VapBC toxin-antitoxin complex
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