protein
protein
CD19 molecule
T-cell surface antigen Leu-12
differentiation antigen CD19
B-lymphocyte surface antigen B4
A protein that is a translation product of the human CD19 gene or a 1:1 ortholog thereof. It is composed of an N-terminal extracellular domain containing two Ig-like C2-type (immunoglobulin-like) domains, followed by a single-pass transmembrane segment and a cytoplasmic C-terminal tail. CD19 expression is restricted to members of the B cell lineage. It functions as a co-receptor for B-cell antigen receptor (BCR), regulating signal transduction.
Category=gene. Requested by=CL.
IUPHARobj:2764
PR:000001002
CD19
PIRSF:PIRSF016630
protein