1dzi

From Proteopedia

proteopedia linkproteopedia link

spinqualitylabelsall models PDB ID 1dzi Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image
, resolution 2.1Å
Ligands:	and
Coordinates:	save as pdb, mmCIF, xml

INTEGRIN ALPHA2 I DOMAIN / COLLAGEN COMPLEX

Contents 1 Overview 2 Disease 3 About this Structure 4 Reference

Overview

We have determined the crystal structure of a complex between the I domain of integrin alpha2beta1 and a triple helical collagen peptide containing a critical GFOGER motif. Three loops on the upper surface of the I domain that coordinate a metal ion also engage the collagen, with a collagen glutamate completing the coordination sphere of the metal. Comparison with the unliganded I domain reveals a change in metal coordination linked to a reorganization of the upper surface that together create a complementary surface for binding collagen. Conformational changes propagate from the upper surface to the opposite pole of the domain, suggesting both a basis for affinity regulation and a pathway for signal transduction. The structural features observed here may represent a general mechanism for integrin-ligand recognition.

Disease

Known diseases associated with this structure: Glycoprotein Ia deficiency (1) OMIM:[192974], Neonatal alloimmune thrombocytopenia OMIM:[192974]

About this Structure

1DZI is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structural basis of collagen recognition by integrin alpha2beta1., Emsley J, Knight CG, Farndale RW, Barnes MJ, Liddington RC, Cell. 2000 Mar 31;101(1):47-56. PMID:10778855

Page seeded by OCA on Thu Mar 20 10:47:02 2008