[Term] id: PR:000001002 name: CD19 molecule def: "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." [PMID:15778510] comment: Category=gene. Requested by=CL. synonym: "CD19" EXACT PRO-short-label [PRO:DNx] synonym: "differentiation antigen CD19" EXACT [] synonym: "T-cell surface antigen Leu-12" EXACT [] synonym: "B-lymphocyte surface antigen B4" EXACT [] xref: IUPHARobj:2764 xref: PIRSF:PIRSF016630 is_a: PR:000000001 ! protein [Term] id: PR:P25918 name: B-lymphocyte antigen CD19 (mouse) def: "A CD19 molecule that is encoded in the genome of mouse." [OMA:P25918, PRO:DNx] comment: Category=organism-gene. synonym: "Cd19" RELATED Gene-based [UniProtKB:P25918] synonym: "mCD19" EXACT PRO-short-label [PRO:DNx] synonym: "CD19 (mouse)" EXACT [UniProtKB:P25918] synonym: "differentiation antigen CD19 (mouse)" EXACT [UniProtKB:P25918] xref: UniProtKB:P25918 intersection_of: only_in_taxon NCBITaxon:10090 ! Mus musculus intersection_of: PR:000001002 ! CD19 molecule relationship: has_gene_template MGI:88319 ! Cd19 (mouse)