1fjd

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[[Image:1fjd.gif|left|200px]]
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{{STRUCTURE_1fjd| PDB=1fjd | SCENE= }}
{{STRUCTURE_1fjd| PDB=1fjd | SCENE= }}
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'''HUMAN PARVULIN-LIKE PEPTIDYL PROLYL CIS/TRANS ISOMERASE, HPAR14'''
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===HUMAN PARVULIN-LIKE PEPTIDYL PROLYL CIS/TRANS ISOMERASE, HPAR14===
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==Overview==
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The hPar14 protein is a peptidyl prolyl cis/trans isomerase and is a human parvulin homologue. The hPar14 protein shows about 30 % sequence identity with the other human parvulin homologue, hPin1. Here, the solution structure of hPar14 was determined by nuclear magnetic resonance spectroscopy. The N-terminal 35 residues preceding the peptidyl prolyl isomerase domain of hPar14 are unstructured, whereas hPin1 possesses the WW domain at its N terminus. The fold of residues 36-131 of hPar14, which comprises a four-stranded beta-sheet and three alpha-helices, is superimposable onto that of the peptidyl prolyl isomerase domain of hPin1. To investigate the interaction of hPar14 with a substrate, the backbone chemical-shift changes of hPar14 were monitored during titration with a tetra peptide. Met90, Val91, and Phe94 around the N terminus of alpha3 showed large chemical-shift changes. These residues form a hydrophobic patch on the molecular surface of hPar14. Two of these residues are conserved and have been shown to interact with the proline residue of the substrate in hPin1. On the other hand, hPar14 lacks the hPin1 positively charged residues (Lys63, Arg68, and Arg69), which determine the substrate specificity of hPin1 by interacting with phosphorylated Ser or Thr preceding the substrate Pro, and exhibits a different structure in the corresponding region. Therefore, the mechanism determining the substrate specificity seems to be different between hPar14 and hPin1.
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(as it appears on PubMed at http://www.pubmed.gov), where 11162102 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11162102}}
==About this Structure==
==About this Structure==
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1FJD is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FJD OCA].
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1FJD is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1FJD OCA].
==Reference==
==Reference==
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[[Category: Rsgi]]
[[Category: Rsgi]]
[[Category: Structural genomic]]
[[Category: Structural genomic]]
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Revision as of 00:21, 1 July 2008

Image:1fjd.png

Template:STRUCTURE 1fjd

HUMAN PARVULIN-LIKE PEPTIDYL PROLYL CIS/TRANS ISOMERASE, HPAR14

Template:ABSTRACT PUBMED 11162102

About this Structure

1FJD is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

Solution structure of the human parvulin-like peptidyl prolyl cis/trans isomerase, hPar14., Terada T, Shirouzu M, Fukumori Y, Fujimori F, Ito Y, Kigawa T, Yokoyama S, Uchida T, J Mol Biol. 2001 Jan 26;305(4):917-26. PMID:11162102

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