1vca

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{{STRUCTURE_1vca| PDB=1vca | SCENE= }}
{{STRUCTURE_1vca| PDB=1vca | SCENE= }}
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'''CRYSTAL STRUCTURE OF AN INTEGRIN-BINDING FRAGMENT OF VASCULAR CELL ADHESION MOLECULE-1 AT 1.8 ANGSTROMS RESOLUTION'''
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===CRYSTAL STRUCTURE OF AN INTEGRIN-BINDING FRAGMENT OF VASCULAR CELL ADHESION MOLECULE-1 AT 1.8 ANGSTROMS RESOLUTION===
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==Overview==
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The cell-surface glycoprotein vascular cell adhesion molecule-1 (VCAM-1; ref. 1) mediates intercellular adhesion by specific binding to the integrin very-late antigen-4 (VLA-4, alpha 4 beta 1; ref. 3). VCAM-1, with the intercellular adhesion molecules ICAM-1, ICAM-2, ICAM-3 and the mucosal vascular addressin MAd-CAM-1, forms an integrin-binding subgroup of the immunoglobulin superfamily. In addition to their clinical relevance in inflammation, these molecules act as cellular receptors for viral and parasitic agents. The predominant form of VCAM-1 in vivo has an amino-terminal extracellular region comprising seven immunoglobulin-like domains. Functional studies have identified a conserved integrin-binding motif in domains 1 and 4, variants of which are present in the N-terminal domain of all members of the immunoglobulin superfamily subgroup. We report here the crystal structure of a VLA-4-binding fragment composed of the first two domains of VCAM-1. The integrin-binding motif (Q38IDSPL) is highly exposed and forms the N-terminal region of the loop between beta-strands C and D of domain 1. This motif exhibits a distinctive conformation which we predict will be common to all the integrin-binding IgSF molecules. These, and additional data, map VLA-4 binding to the face of the CFG beta-sheet, the surface previously identified as the site for intercellular adhesive interactions between members of the immunoglobulin superfamily.
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(as it appears on PubMed at http://www.pubmed.gov), where 7531291 is the PubMed ID number.
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{{ABSTRACT_PUBMED_7531291}}
==About this Structure==
==About this Structure==
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[[Category: Immunoglobulin superfamily]]
[[Category: Immunoglobulin superfamily]]
[[Category: Integrin-binding]]
[[Category: Integrin-binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 12:21:50 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 11:50:24 2008''

Revision as of 08:50, 28 July 2008

Image:1vca.png

Template:STRUCTURE 1vca

CRYSTAL STRUCTURE OF AN INTEGRIN-BINDING FRAGMENT OF VASCULAR CELL ADHESION MOLECULE-1 AT 1.8 ANGSTROMS RESOLUTION

Template:ABSTRACT PUBMED 7531291

About this Structure

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

Reference

Crystal structure of an integrin-binding fragment of vascular cell adhesion molecule-1 at 1.8 A resolution., Jones EY, Harlos K, Bottomley MJ, Robinson RC, Driscoll PC, Edwards RM, Clements JM, Dudgeon TJ, Stuart DI, Nature. 1995 Feb 9;373(6514):539-44. PMID:7531291

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