1n57
From Proteopedia
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| - | [[Image:1n57.gif|left|200px]] | + | [[Image:1n57.gif|left|200px]] |
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| - | '''Crystal Structure of Chaperone Hsp31''' | + | {{Structure |
| + | |PDB= 1n57 |SIZE=350|CAPTION= <scene name='initialview01'>1n57</scene>, resolution 1.6Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=MG:MAGNESIUM ION'>MG</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= hchA/yedU ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 Escherichia coli]) | ||
| + | }} | ||
| + | |||
| + | '''Crystal Structure of Chaperone Hsp31''' | ||
| + | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
| - | 1N57 is a [ | + | 1N57 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N57 OCA]. |
==Reference== | ==Reference== | ||
| - | The 1.6-A crystal structure of the class of chaperones represented by Escherichia coli Hsp31 reveals a putative catalytic triad., Quigley PM, Korotkov K, Baneyx F, Hol WG, Proc Natl Acad Sci U S A. 2003 Mar 18;100(6):3137-42. Epub 2003 Mar 5. PMID:[http:// | + | The 1.6-A crystal structure of the class of chaperones represented by Escherichia coli Hsp31 reveals a putative catalytic triad., Quigley PM, Korotkov K, Baneyx F, Hol WG, Proc Natl Acad Sci U S A. 2003 Mar 18;100(6):3137-42. Epub 2003 Mar 5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12621151 12621151] |
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
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[[Category: alpha-beta sandwich]] | [[Category: alpha-beta sandwich]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 12:52:18 2008'' |
Revision as of 10:52, 20 March 2008
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| , resolution 1.6Å | |||||||
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| Ligands: | |||||||
| Gene: | hchA/yedU (Escherichia coli) | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal Structure of Chaperone Hsp31
Overview
Heat shock proteins (Hsps) play essential protective roles under stress conditions by preventing the formation of protein aggregates and degrading misfolded proteins. EcHsp31, the yedU (hchA) gene product, is a representative member of a family of chaperones that alleviates protein misfolding by interacting with early unfolding intermediates. The 1.6-A crystal structure of the EcHsp31 dimer reveals a system of hydrophobic patches, canyons, and grooves, which may stabilize partially unfolded substrate. The presence of a well conserved, yet buried, triad in each two-domain subunit suggests a still unproven hydrolytic function of the protein. A flexible extended linker between the A and P domains may play a role in conformational flexibility and substrate binding. The alpha-beta sandwich of the EcHsp31 monomer shows structural similarity to PhPI, a protease belonging to the DJ-1 superfamily. The structure-guided sequence alignment indicates that Hsp31 homologs can be divided in three classes based on variations in the P domain that dramatically affect both oligomerization and catalytic triad formation.
About this Structure
1N57 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.
Reference
The 1.6-A crystal structure of the class of chaperones represented by Escherichia coli Hsp31 reveals a putative catalytic triad., Quigley PM, Korotkov K, Baneyx F, Hol WG, Proc Natl Acad Sci U S A. 2003 Mar 18;100(6):3137-42. Epub 2003 Mar 5. PMID:12621151
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