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1jon

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GROEL (HSP60 CLASS) FRAGMENT COMPRISING RESIDUES 191-345

Structural highlights

1jon is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2.5Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CH60_ECOLI Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions.[HAMAP-Rule:MF_00600] Essential for the growth of the bacteria and the assembly of several bacteriophages. Also plays a role in coupling between replication of the F plasmid and cell division of the cell.[HAMAP-Rule:MF_00600]

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

The chaperonin GroEL is a large complex composed of 14 identical 57-kDa subunits that requires ATP and GroES for some of its activities. We find that a monomeric polypeptide corresponding to residues 191 to 345 has the activity of the tetradecamer both in facilitating the refolding of rhodanese and cyclophilin A in the absence of ATP and in catalyzing the unfolding of native barnase. Its crystal structure, solved at 2.5 A resolution, shows a well-ordered domain with the same fold as in intact GroEL. We have thus isolated the active site of the complex allosteric molecular chaperone, which functions as a "minichaperone." This has mechanistic implications: the presence of a central cavity in the GroEL complex is not essential for those representative activities in vitro, and neither are the allosteric properties. The function of the allosteric behavior on the binding of GroES and ATP must be to regulate the affinity of the protein for its various substrates in vivo, where the cavity may also be required for special functions.

Chaperone activity and structure of monomeric polypeptide binding domains of GroEL.,Zahn R, Buckle AM, Perrett S, Johnson CM, Corrales FJ, Golbik R, Fersht AR Proc Natl Acad Sci U S A. 1996 Dec 24;93(26):15024-9. PMID:8986757^[1]

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

References

↑ Zahn R, Buckle AM, Perrett S, Johnson CM, Corrales FJ, Golbik R, Fersht AR. Chaperone activity and structure of monomeric polypeptide binding domains of GroEL. Proc Natl Acad Sci U S A. 1996 Dec 24;93(26):15024-9. PMID:8986757

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/1jon"

Categories: Escherichia coli | Large Structures | Buckle AM | Fersht AR

@@ Line 3: / Line 3: @@
 <StructureSection load='1jon' size='340' side='right'caption='[[1jon]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1jon]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JON OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JON FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1jon]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JON OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JON FirstGlance]. <br>
-</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=1jon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jon OCA], [http://pdbe.org/1jon PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jon RCSB], [http://www.ebi.ac.uk/pdbsum/1jon PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1jon ProSAT]</span></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]] 2.5&#8491;</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=1jon FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jon OCA], [https://pdbe.org/1jon PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jon RCSB], [https://www.ebi.ac.uk/pdbsum/1jon PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jon ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/CH60_ECOLI CH60_ECOLI]] Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions.[HAMAP-Rule:MF_00600]  Essential for the growth of the bacteria and the assembly of several bacteriophages. Also plays a role in coupling between replication of the F plasmid and cell division of the cell.[HAMAP-Rule:MF_00600]
+[https://www.uniprot.org/uniprot/CH60_ECOLI CH60_ECOLI] Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions.[HAMAP-Rule:MF_00600]  Essential for the growth of the bacteria and the assembly of several bacteriophages. Also plays a role in coupling between replication of the F plasmid and cell division of the cell.[HAMAP-Rule:MF_00600]
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 29: / Line 30: @@
 ==See Also==
-*[[Chaperonin 3D structures|Chaperonin 3D structures]]
 *[[Heat Shock Protein structures|Heat Shock Protein structures]]
 == References ==
@@ Line 35: / Line 35: @@
 __TOC__
 </StructureSection>
-[[Category: Bacillus coli migula 1895]]
+[[Category: Escherichia coli]]
 [[Category: Large Structures]]
-[[Category: Buckle, A M]]
+[[Category: Buckle AM]]
-[[Category: Fersht, A R]]
+[[Category: Fersht AR]]
-[[Category: Atp-binding]]
-[[Category: Cell division]]
-[[Category: Chaperone]]
-[[Category: Phosphorylation]]

1jon

From Proteopedia

Current revision

GROEL (HSP60 CLASS) FRAGMENT COMPRISING RESIDUES 191-345

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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