National Cancer Institute Thesaurus

Last uploaded: February 21, 2019
Preferred Name

Integrin Alpha-M

ID

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C17373

code

C17373

DEFINITION

Integrin alpha-M (1152 aa, ~127 kDa) is encoded by the human ITGAM gene. This protein is involved in both leukocyte adhesion and the phagocytosis of complement coated particles.

DesignNote

An adhesion-promoting leukocyte surface integrin heterodimer contains an alpha subunit of CD11b antigen and a beta subunit of CD18 antigen. The heterodimer functions as a receptor for complement 3, and in cell-cell and cell-substrate adhesive interactions. Major surface antigens on leukocytes include CR3A, LFA-1, and p150,95, which share a common beta chain linked to one of three alpha distinctive chains. They promote adhesion of granulocytes to each other and to endothelial cells. The CR3A alpha subunit (CD11b) is homologous to the alpha subunit of IIb/IIIa, a platelet glycoprotein that also serves adhesive functions. CD11b also exhibits significant homology with portions of the alpha subunits of fibronectin, vitronectin, platelet IIb/IIIa receptors, and p150,95. The protein consists of an N-terminal extracytoplasmic domain, a transmembrane segment, and a short C-terminal cytoplasmic domain.

FULL_SYN

ITGAM

Neutrophil Adherence Receptor Alpha-M Subunit

Leukocyte Adhesion Receptor MO1

MO1 Alpha

Integrin Alpha M

CR-3 Alpha Chain

Neutrophil Adherence Receptor

MAC1 Alpha

CD11 Antigen-Like Family Member B

CD11b

Complement Receptor Type 3, Alpha Subunit

CD11b Antigen

Cell Surface Glycoprotein MAC-1 Subunit Alpha

Macrophage Antigen Alpha Polypeptide

label

Integrin Alpha-M

Legacy_Concept_Name

Integrin_Alpha-M

OMIM_Number

120980

Preferred_Name

Integrin Alpha-M

prefixIRI

C17373

prefLabel

Integrin Alpha-M

Semantic_Type

Amino Acid, Peptide, or Protein

Swiss_Prot

P11215

UMLS_CUI

C1701032

subClassOf

http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#C16393

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Delete Mapping To Ontology Source
http://purl.bioontology.org/ontology/OMIM/120980 Online Mendelian Inheritance in Man LOOM
http://purl.obolibrary.org/obo/PR_000001012 Phenotypic Quality Ontology LOOM
http://purl.obolibrary.org/obo/PR_000001012 Cell Ontology LOOM
http://purl.obolibrary.org/obo/PR_000001012 Protein Ontology LOOM
http://purl.obolibrary.org/obo/PR_000001012 Cell Line Ontology Subset for Chinese National Infrastructure of Cell Line Resource (NICR) LOOM