8f1t
From Proteopedia
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[8f1t]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8F1T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8F1T FirstGlance]. <br> | <table><tr><td colspan='2'>[[8f1t]] is a 9 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8F1T OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8F1T FirstGlance]. <br> | ||
| - | </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=8f1t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8f1t OCA], [https://pdbe.org/8f1t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8f1t RCSB], [https://www.ebi.ac.uk/pdbsum/8f1t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8f1t ProSAT]</span></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 12.1Å</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=8f1t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8f1t OCA], [https://pdbe.org/8f1t PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8f1t RCSB], [https://www.ebi.ac.uk/pdbsum/8f1t PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8f1t ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/DEGP_ECOLI DEGP_ECOLI] DegP acts as a chaperone at low temperatures but switches to a peptidase (heat shock protein) at higher temperatures. It degrades transiently denatured and unfolded proteins which accumulate in the periplasm following heat shock or other stress conditions. DegP is efficient with Val-Xaa and Ile-Xaa peptide bonds, suggesting a preference for beta-branched side chain amino acids. Only unfolded proteins devoid of disulfide bonds appear capable of being cleaved, thereby preventing non-specific proteolysis of folded proteins. Its proteolytic activity is essential for the survival of cells at elevated temperatures. It can degrade IciA, ada, casein, globin and PapA. DegP shares specificity with DegQ. DegP is also involved in the biogenesis of partially folded outer-membrane proteins (OMP).<ref>PMID:2180903</ref> <ref>PMID:8830688</ref> <ref>PMID:10319814</ref> <ref>PMID:18505836</ref> <ref>PMID:12730160</ref> <ref>PMID:18496527</ref> | [https://www.uniprot.org/uniprot/DEGP_ECOLI DEGP_ECOLI] DegP acts as a chaperone at low temperatures but switches to a peptidase (heat shock protein) at higher temperatures. It degrades transiently denatured and unfolded proteins which accumulate in the periplasm following heat shock or other stress conditions. DegP is efficient with Val-Xaa and Ile-Xaa peptide bonds, suggesting a preference for beta-branched side chain amino acids. Only unfolded proteins devoid of disulfide bonds appear capable of being cleaved, thereby preventing non-specific proteolysis of folded proteins. Its proteolytic activity is essential for the survival of cells at elevated temperatures. It can degrade IciA, ada, casein, globin and PapA. DegP shares specificity with DegQ. DegP is also involved in the biogenesis of partially folded outer-membrane proteins (OMP).<ref>PMID:2180903</ref> <ref>PMID:8830688</ref> <ref>PMID:10319814</ref> <ref>PMID:18505836</ref> <ref>PMID:12730160</ref> <ref>PMID:18496527</ref> | ||
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| + | ==See Also== | ||
| + | *[[Heat Shock Protein structures|Heat Shock Protein structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
Current revision
Structure of an 18mer DegP cage bound to the client protein hTRF1
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