CDB25:0003613 FCER2 — ITGB3

Experimentally validated in Human; Orthology-inferred in Mouse, Rat, Frog, Zebrafish, Chicken, Macaque, Pig, Dog, Cow, Chimp, Horse, Marmoset, Sheep

Title

Journal:; Year Published:

Abstract

Analysis of the CD23-αv integrin interaction: a study with model peptides.

Biochemical and biophysical research communications, 2012; PubMed, Homo sapiens FCER2 — Homo sapiens ITGB3
ABSTRACT: The human CD23 protein binds to αvβ3 and αvβ5 integrins. The integrins recognize a short tripeptide motif of arg-lys-cys (RKC) in CD23, and peptides containing this motif inhibit the binding of CD23 to B cells and monocytes; neither fibronectin, nor vitronectin, which contain arg-gly-asp motifs, inhibit binding of RKC-containing peptides to cells. RKC-containing peptides derived from CD23 show dose-dependent, biphasic binding profiles to both αvβ3 and αvβ5 that are cation-independent but sensitive to high chloride ion concentrations. Substitution of one basic residue in the RKC motif with alanine reduces but does not abolish integrin binding or the ability of peptides to stimulate pre-B cell growth or cytokine release by monocytes. Substitution of both basic residues abolishes both integrin binding and biological activity of CD23-derived peptides. These features indicate that binding of RKC-containing peptides to αv integrins has clearly distinct characteristics to those for binding of RGD-containing ligands.
Basic Information on FCER2
Ligand Name: Fc epsilon receptor II
Other Symbols: CD23A, FCE2, CLEC4J, CD23, FCErII, FcepsilonRII
Ligand Location: secreted based on perplexity, uniprot, cell membrane based on perplexity, uniprot
HGNC Gene Symbol Report: FCER2
GeneCards: FCER2
Interactions with other Receptors for FCER2
Basic Information on ITGB3
Receptor Name: integrin subunit beta 3
Other Symbols: GP3A, CD61, GPIIIa
Receptor Location: cell membrane based on hpa, perplexity, uniprot
HGNC Gene Symbol Report: ITGB3
GeneCards: ITGB3
HGNC Gene Group: CD molecules, Integrins