2c5d

From Proteopedia

Revision as of 14:53, 30 October 2007

STRUCTURE OF A MINIMAL GAS6-AXL COMPLEX

Overview

Receptor tyrosine kinases of the Axl family are activated by the vitamin, K-dependent protein Gas6. Axl signalling plays important roles in cancer, spermatogenesis, immunity, and platelet function. The crystal structure at, 3.3 A resolution of a minimal human Gas6/Axl complex reveals an assembly, of 2:2 stoichiometry, in which the two immunoglobulin-like domains of the, Axl ectodomain are crosslinked by the first laminin G-like domain of Gas6, with no direct Axl/Axl or Gas6/Gas6 contacts. There are two distinct, Gas6/Axl contacts of very different size, both featuring interactions, between edge beta-strands. Structure-based mutagenesis, protein binding, assays and receptor activation experiments demonstrate that both the major, and minor Gas6 binding sites are required for productive ... [(full description)]

About this Structure

2C5D is a [Protein complex] structure of sequences from [Homo sapiens] with CA, NI and SO4 as [ligands]. Active as [Transferred entry: 2.7.10.1 and 2.7.10.2], with EC number [2.7.1.112]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].

Reference

Structural basis for Gas6-Axl signalling., Sasaki T, Knyazev PG, Clout NJ, Cheburkin Y, Gohring W, Ullrich A, Timpl R, Hohenester E, EMBO J. 2006 Jan 11;25(1):80-7. Epub 2005 Dec 15. PMID:16362042

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