Recombinant human ICAM1 protein

Specifications

Form

Lyophilized

Additional notes

Purity is greater than 98% by SDS-PAGE gel and HPLC analyses. Endotoxin level is less than 0.1 ng per µg (1EU/µg).

General info

Function

Cell adhesion molecule that functions as a receptor ligand of the signaling receptor ITGAL : ITGB2/LFA-1 (lymphocyte-function associated (LFA) molecule 1) ensuring leukocyte cell-cell adhesion, by providing a calibrated system to namely adjust T-cell killing to the antigen stimulation strength (PubMed : 3086451, PubMed : 3340213, PubMed : 38195629). Also functions as a ligand receptor of the signaling receptor ITGAM : ITGB2/MAC-1 ensuring adhesion between stimulated neutrophils and stimulated endothelial cells (PubMed : 1980124). During leukocyte trans-endothelial migration, ICAM1 engagement promotes the assembly of endothelial apical cups through ARHGEF26/SGEF and RHOG activation (PubMed : 17875742). Promotes cell aggregation in epithelial cells through interaction with MUC1 (PubMed : 11173916).. (Microbial infection) Acts as a receptor for major receptor group rhinovirus A-B capsid proteins.. (Microbial infection) Acts as a receptor for Coxsackievirus A21 capsid proteins.. (Microbial infection) Upon Kaposi's sarcoma-associated herpesvirus/HHV-8 infection, is degraded by viral E3 ubiquitin ligase MIR2, presumably to prevent lysis of infected cells by cytotoxic T-lymphocytes and NK cell.

Sequence similarities

Belongs to the immunoglobulin superfamily. ICAM family.

Post-translational modifications

Monoubiquitinated, which is promoted by MARCH9 and leads to endocytosis.