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1uzj

From Proteopedia

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{{STRUCTURE_1uzj| PDB=1uzj | SCENE= }}
{{STRUCTURE_1uzj| PDB=1uzj | SCENE= }}
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'''INTEGRIN BINDING CBEGF22-TB4-CBEGF33 FRAGMENT OF HUMAN FIBRILLIN-1, HOLO FORM.'''
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===INTEGRIN BINDING CBEGF22-TB4-CBEGF33 FRAGMENT OF HUMAN FIBRILLIN-1, HOLO FORM.===
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==Overview==
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Human fibrillin-1, the major structural protein of extracellular matrix (ECM) 10-12 nm microfibrils, is dominated by 43 calcium binding epidermal growth factor-like (cbEGF) and 7 transforming growth factor beta binding protein-like (TB) domains. Crystal structures reveal the integrin binding cbEGF22-TB4-cbEGF23 fragment of human fibrillin-1 to be a Ca(2+)-rigidified tetragonal pyramid. We suggest that other cbEGF-TB pairs within the fibrillins may adopt a similar orientation to cbEGF22-TB4. In addition, we have located a flexible RGD integrin binding loop within TB4. Modeling, cell attachment and spreading assays, immunocytochemistry, and surface plasmon resonance indicate that cbEGF22 bound to TB4 is a requirement for integrin activation and provide insight into the molecular basis of the fibrillin-1 interaction with alphaVbeta3. In light of our data, we propose a novel model for the assembly of the fibrillin microfibril and a mechanism to explain its extensibility.
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The line below this paragraph, {{ABSTRACT_PUBMED_15062093}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15062093 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15062093}}
==About this Structure==
==About this Structure==
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[[Category: Fibrillin-1]]
[[Category: Fibrillin-1]]
[[Category: Tb domain matrix protein]]
[[Category: Tb domain matrix protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 11:54:23 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 09:34:16 2008''

Revision as of 06:34, 28 July 2008

Image:1uzj.png

Template:STRUCTURE 1uzj

INTEGRIN BINDING CBEGF22-TB4-CBEGF33 FRAGMENT OF HUMAN FIBRILLIN-1, HOLO FORM.

Template:ABSTRACT PUBMED 15062093

About this Structure

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

Reference

Structure of the integrin binding fragment from fibrillin-1 gives new insights into microfibril organization., Lee SS, Knott V, Jovanovic J, Harlos K, Grimes JM, Choulier L, Mardon HJ, Stuart DI, Handford PA, Structure. 2004 Apr;12(4):717-29. PMID:15062093

Page seeded by OCA on Mon Jul 28 09:34:16 2008

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