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2k7v

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Revision as of 13:29, 24 November 2021

Deletions in a surface loop divert the folding of a protein domain into a metastable dimeric form

Structural highlights

2k7v is a 2 chain structure with sequence from Ecoli. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	aceF (ECOLI)
Activity:	Dihydrolipoyllysine-residue acetyltransferase, with EC number 2.3.1.12
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[ODP2_ECOLI] The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

A prominent surface loop links the first two beta strands of the lipoyl domain (E2plip) from the pyruvate dehydrogenase multienzyme complex of Escherichia coli. We show here that shortening this loop by two residues generates a protein that populates two structurally distinct stable conformers: an active, native-like monomer (HM) and a functionally compromised misfolded dimer (LM). Conversion of LM to HM was observed after exposure to temperatures above 50 degrees C. Removal of two additional residues from the loop caused the protein to adopt exclusively the misfolded conformation. Detailed NMR structural studies of the misfolded dimer reveal that the N-terminal half of the domain was unfolded and dynamic, whereas the C-terminal halves of two monomers had associated to form a structure with two-fold symmetry and a topology mimicking that of the folded monomer. The surface loop is therefore a hitherto unsuspected determinant in the folding process that leads to a functional protein.

A surface loop directs conformational switching of a lipoyl domain between a folded and a novel misfolded structure.,Stott KM, Yusof AM, Perham RN, Jones DD Structure. 2009 Aug 12;17(8):1117-27. PMID:19679089^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Stott KM, Yusof AM, Perham RN, Jones DD. A surface loop directs conformational switching of a lipoyl domain between a folded and a novel misfolded structure. Structure. 2009 Aug 12;17(8):1117-27. PMID:19679089 doi:10.1016/j.str.2009.07.001

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2k7v"

@@ Line 3: / Line 3: @@
 <StructureSection load='2k7v' size='340' side='right'caption='[[2k7v]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2k7v]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K7V OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2K7V FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2k7v]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Ecoli Ecoli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2K7V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2K7V FirstGlance]. <br>
-</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">aceF ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
+</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">aceF ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=83333 ECOLI])</td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Dihydrolipoyllysine-residue_acetyltransferase Dihydrolipoyllysine-residue acetyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.12 2.3.1.12] </span></td></tr>
+<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Dihydrolipoyllysine-residue_acetyltransferase Dihydrolipoyllysine-residue acetyltransferase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.3.1.12 2.3.1.12] </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=2k7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k7v OCA], [http://pdbe.org/2k7v PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2k7v RCSB], [http://www.ebi.ac.uk/pdbsum/2k7v PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2k7v 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=2k7v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2k7v OCA], [https://pdbe.org/2k7v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2k7v RCSB], [https://www.ebi.ac.uk/pdbsum/2k7v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2k7v ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/ODP2_ECOLI ODP2_ECOLI]] The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3).
+[[https://www.uniprot.org/uniprot/ODP2_ECOLI ODP2_ECOLI]] The pyruvate dehydrogenase complex catalyzes the overall conversion of pyruvate to acetyl-CoA and CO(2). It contains multiple copies of three enzymatic components: pyruvate dehydrogenase (E1), dihydrolipoamide acetyltransferase (E2) and lipoamide dehydrogenase (E3).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]

2k7v

From Proteopedia

Revision as of 13:29, 24 November 2021

Deletions in a surface loop divert the folding of a protein domain into a metastable dimeric form

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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