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Overview

Uniprot IDP13597
Protein NameIntercellular adhesion molecule 1
Gene NameIcam1
OrganismMus musculus

Kla Sites from experimental identification

Position Flanking peptide
421 EGSQQTLKCQAWGNP

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. Also functions as a ligand receptor of the signaling receptor ITGAM:ITGB2/MAC-1 ensuring adhesion between stimulated neutrophils and stimulated endothelial cells. During leukocyte trans-endothelial migration, ICAM1 engagement promotes the assembly of endothelial apical cups through ARHGEF26/SGEF and RHOG activation. Promotes cell aggregation in epithelial cells through interaction with MUC1

Protein Sequence

10 MASTRAKPTL 20 PLLLALVTVV 30 IPGPGDAQVS 40 IHPREAFLPQ 50 GGSVQVNCSS 60 SCKEDLSLGL 70 ETQWLKDELE 80 SGPNWKLFEL 90 SEIGEDSSPL 100 CFENCGTVQS 110 SASATITVYS 120 FPESVELRPL 130 PAWQQVGKDL 140 TLRCHVDGGA 150 PRTQLSAVLL 160 RGEEILSRQP 170 VGGHPKDPKE 180 ITFTVLASRG 190 DHGANFSCRT 200 ELDLRPQGLA 210 LFSNVSEARS 220 LRTFDLPATI 230 PKLDTPDLLE 240 VGTQQKLFCS 250 LEGLFPASEA 260 RIYLELGGQM 270 PTQESTNSSD 280 SVSATALVEV 290 TEEFDRTLPL 300 RCVLELADQI 310 LETQRTLTVY 320 NFSAPVLTLS 330 QLEVSEGSQV 340 TVKCEAHSGS 350 KVVLLSGVEP 360 RPPTPQVQFT 370 LNASSEDHKR 380 SFFCSAALEV 390 AGKFLFKNQT 400 LELHVLYGPR 410 LDETDCLGNW 420 TWQEGSQQTL 430 KCQAWGNPSP 440 KMTCRRKADG 450 ALLPIGVVKS 460 VKQEMNGTYV 470 CHAFSSHGNV 480 TRNVYLTVLY 490 HSQNNWTIII 500 LVPVLLVIVG 510 LVMAASYVYN 520 RQRKIRIYKL 530 QKAQEEAIKL KGQAPPP

Gene Ontology

Classification GO ID Description
Biological Process GO:0007155 cell adhesion
Biological Process GO:0033627 cell adhesion mediated by integrin
Biological Process GO:0098609 cell-cell adhesion
Biological Process GO:0033631 cell-cell adhesion mediated by integrin
Biological Process GO:1904646 cellular response to amyloid-beta
Biological Process GO:0071333 cellular response to glucose stimulus
Biological Process GO:1990830 cellular response to leukemia inhibitory factor
Biological Process GO:0061028 establishment of endothelial barrier
Biological Process GO:0090557 establishment of endothelial intestinal barrier
Biological Process GO:0097368 establishment of Sertoli cell barrier
Biological Process GO:0061756 leukocyte adhesion to vascular endothelial cell
Biological Process GO:0007159 leukocyte cell-cell adhesion
Biological Process GO:0022614 membrane to membrane docking
Biological Process GO:0051926 negative regulation of calcium ion transport
Biological Process GO:2000352 negative regulation of endothelial cell apoptotic process
Biological Process GO:1902042 negative regulation of extrinsic apoptotic signaling pathway via death domain receptors
Biological Process GO:0030838 positive regulation of actin filament polymerization
Biological Process GO:0002693 positive regulation of cellular extravasation
Biological Process GO:0070374 positive regulation of ERK1 and ERK2 cascade
Biological Process GO:0043547 positive regulation of GTPase activity
Biological Process GO:1904996 positive regulation of leukocyte adhesion to vascular endothelial cell
Biological Process GO:0045429 positive regulation of nitric oxide biosynthetic process
Biological Process GO:0050731 positive regulation of peptidyl-tyrosine phosphorylation
Biological Process GO:0045907 positive regulation of vasoconstriction
Biological Process GO:0046813 receptor-mediated virion attachment to host cell
Biological Process GO:0008360 regulation of cell shape
Biological Process GO:1900027 regulation of ruffle assembly
Biological Process GO:0002291 T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell
Biological Process GO:0002457 T cell antigen processing and presentation
Biological Process GO:0072683 T cell extravasation
Cellular Component GO:0009986 cell surface
Cellular Component GO:0009897 external side of plasma membrane
Cellular Component GO:0070062 extracellular exosome
Cellular Component GO:0005615 extracellular space
Cellular Component GO:0001772 immunological synapse
Cellular Component GO:0005886 plasma membrane
Molecular Function GO:0005178 integrin binding
Molecular Function GO:0044877 protein-containing complex binding
Molecular Function GO:0048018 receptor ligand activity
Biological Process GO:0002438 acute inflammatory response to antigenic stimulus
Biological Process GO:0044406 adhesion of symbiont to host

Reference

[1] Wu D, Tang Y, Li X, Xiong S, Zhang Z et al.. Characterization of protein lactylation in healthy and ischemic mouse hearts.. Front Cardiovasc Med 12:1644886. 2025. PMID: 41089239.