3fbr: Difference between revisions
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<StructureSection load='3fbr' size='340' side='right'caption='[[3fbr]], [[Resolution|resolution]] 3.50Å' scene=''> | <StructureSection load='3fbr' size='340' side='right'caption='[[3fbr]], [[Resolution|resolution]] 3.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3fbr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[3fbr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FBR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FBR FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.5Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACP:PHOSPHOMETHYLPHOSPHONIC+ACID+ADENYLATE+ESTER'>ACP</scene></td></tr> | |||
<tr id=' | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3fbr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fbr OCA], [https://pdbe.org/3fbr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fbr RCSB], [https://www.ebi.ac.uk/pdbsum/3fbr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fbr 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=3fbr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fbr OCA], [https://pdbe.org/3fbr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fbr RCSB], [https://www.ebi.ac.uk/pdbsum/3fbr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fbr ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/HIPA_ECOLI HIPA_ECOLI] Toxic component of a toxin-antitoxin (TA) module. Autophosphorylates (Ser-150) and phosphorylates EF-Tu in vitro (on 'Thr-383'), may act on other proteins as well. The hipA7 mutation leads to increased generation of persister cells, cells that survive antibiotic treatment probably by entering into a dormant state. Wild-type cells produce persisters at a frequency of 10-6 to 10-5 whereas mutant hipA7 cells produce persisters at a frequency of 10-2. Generation of persister cells requires (p)ppGpp as cells lacking relA or relA/spoT generate fewer or no persister cells respectively compared to hipA7. Low level expression of HipA causes cell filamentation and depending on the protein level is toxic enough to reduce cell growth or even kill cells. Expression of wild-type HipA also leads to high antibiotic tolerance of the survivor cells. The toxic effect of HipA is neutralized by its cognate antitoxin HipB. With HipB acts as a corepressor for transcription of the hipBA promoter.<ref>PMID:17041039</ref> <ref>PMID:6348026</ref> <ref>PMID:8021189</ref> <ref>PMID:14622409</ref> <ref>PMID:19150849</ref> | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Escherichia coli K-12]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Schumacher MA]] | |||
[[Category: Schumacher | |||