1jyt

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[[Image:1jyt.gif|left|200px]]
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{{STRUCTURE_1jyt| PDB=1jyt | SCENE= }}
{{STRUCTURE_1jyt| PDB=1jyt | SCENE= }}
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'''Solution structure of olfactory marker protein from rat'''
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===Solution structure of olfactory marker protein from rat===
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==Overview==
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Olfactory marker protein (OMP) is a ubiquitous, cytoplasmic protein found in mature olfactory receptor neurons of all vertebrates. Electrophysiological and behavioral studies demonstrate that it is a modulator of the olfactory signal transduction pathway. Here, we demonstrate that the solution structure of OMP, as determined by NMR studies, is a single globular domain protein comprised of eight beta-strands forming two beta-sheets oriented orthogonally to one another, thus exhibiting a "beta-clam" or "beta-sandwich" fold: beta-sheet 1 is comprised of beta3-beta8-beta1-beta2 and beta-sheet 2 contains beta6-beta5-beta4-beta7. Insertions include two, long alpha-helices located on opposite sides of the beta-clam and three flexible loops. The juxtaposition of beta-strands beta6-beta5-beta4-beta7-beta2-beta1-beta8-beta3 forms a continuously curved surface and encloses one side of the beta-clam. The "cleft" formed by the two beta-sheets is opposite to the closed end of the beta-clam. Using a peptide titration series, we have identified this cleft as the binding surface for a peptide derived from the Bex1 protein. The highly conserved Omega-loop structure adjacent to the Bex1 peptide-binding surface found in OMP may be the site of additional OMP-protein interactions related to its role in modulating olfactory signal transduction. Thus, the interaction between the OMP and Bex1 proteins could facilitate the interaction between OMP and other components of the olfactory signaling pathway.
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(as it appears on PubMed at http://www.pubmed.gov), where 12054873 is the PubMed ID number.
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{{ABSTRACT_PUBMED_12054873}}
==About this Structure==
==About this Structure==
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1JYT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JYT OCA].
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1JYT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JYT OCA].
==Reference==
==Reference==
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[[Category: Beta-clambshell]]
[[Category: Beta-clambshell]]
[[Category: Omega-loop]]
[[Category: Omega-loop]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 22:05:27 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 21:08:32 2008''

Revision as of 18:08, 1 July 2008

Image:1jyt.png

Template:STRUCTURE 1jyt

Solution structure of olfactory marker protein from rat

Template:ABSTRACT PUBMED 12054873

About this Structure

1JYT is a Single protein structure of sequence from Rattus norvegicus. Full experimental information is available from OCA.

Reference

Olfactory marker protein (OMP) exhibits a beta-clam fold in solution: implications for target peptide interaction and olfactory signal transduction., Baldisseri DM, Margolis JW, Weber DJ, Koo JH, Margolis FL, J Mol Biol. 2002 Jun 7;319(3):823-37. PMID:12054873

Page seeded by OCA on Tue Jul 1 21:08:32 2008

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