Cd11a / Integrin Alphal / LFA-1 Alpha Chain (ITGAL) Antibody – Mouse Monoclonal

ITGAL encodes the integrin alpha L chain. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. This I-domain containing alpha integrin combines with the beta 2 chain (ITGB2) to form the integrin lymphocyte function-associated antigen-1 (LFA-1), which is expressed on all leukocytes. LFA-1 plays a central role in leukocyte intercellular adhesion through interactions with its ligands, ICAMs 1-3 (intercellular adhesion molecules 1 through 3), and also functions in lymphocyte costimulatory signaling. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ITGAL: Integrin alpha-L/beta-2 is a receptor for ICAM1, ICAM2, ICAM3 and ICAM4. It is involved in a variety of immune phenomena including leukocyte-endothelial cell interaction, cytotoxic T-cell mediated killing, and antibody dependent killing by granulocytes and monocytes. Belongs to the integrin alpha chain family. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Motility/polarity/chemotaxis; Membrane protein, integral; Cell surface; Cell adhesion

Chromosomal Location of Human Ortholog: 16p11.2

Cellular Component: cell surface; membrane; plasma membrane

Molecular Function: cell adhesion molecule binding; ICAM-3 receptor activity; protein binding

Biological Process: cell motility; cell-matrix adhesion; extracellular matrix organization and biogenesis; heterophilic cell adhesion; leukocyte adhesion; leukocyte migration; receptor clustering; regulation of immune response; T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell