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2ocw

From Proteopedia

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[[Image:2ocw.gif|left|200px]]
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{{STRUCTURE_2ocw| PDB=2ocw | SCENE= }}
{{STRUCTURE_2ocw| PDB=2ocw | SCENE= }}
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'''Solution structure of human secretory component'''
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===Solution structure of human secretory component===
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==Overview==
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Secretory component (SC) in association with polymeric IgA (pIgA) forms secretory IgA, the major antibody active at mucosal surfaces. SC also exists in the free form, with innate-like neutralizing properties against pathogens. Free SC consists of five glycosylated variable (V)-type Ig domains (D1-D5), whose structure was determined by x-ray and neutron scattering, ultracentrifugation, and modeling. With a radius of gyration of 3.53-3.63 nm, a length of 12.5 nm, and a sedimentation coefficient of 4.0 S, SC possesses an unexpected compact structure. Constrained scattering modeling based on up to 13,000 trial models shows that SC adopts a J-shaped structure in which D4 and D5 are folded back against D2 and D3. The seven glycosylation sites are located on one side of SC, leaving known IgA-binding motifs free to interact with pIgA. This work represents the first analysis of the three-dimensional structure of full-length free SC and paves the way to a better understanding of the association between SC and its potential ligands, i.e. pIgA and pathogenic-associated motifs.
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(as it appears on PubMed at http://www.pubmed.gov), where 17428798 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17428798}}
==Disease==
==Disease==
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[[Category: Secretory]]
[[Category: Secretory]]
[[Category: Structure]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 10:38:14 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 04:20:04 2008''

Revision as of 01:20, 28 July 2008

Image:2ocw.png

Template:STRUCTURE 2ocw

Contents

Solution structure of human secretory component

Template:ABSTRACT PUBMED 17428798

Disease

Known disease associated with this structure: IgA nephropathy, susceptibility to OMIM:[173880]

About this Structure

2OCW is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Solution structure of human secretory component and implications for biological function., Bonner A, Perrier C, Corthesy B, Perkins SJ, J Biol Chem. 2007 Jun 8;282(23):16969-80. Epub 2007 Apr 11. PMID:17428798

Page seeded by OCA on Mon Jul 28 04:20:04 2008

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