Gene Information
Gene NameCD19
OrganismHomo sapiens (Human)
Gene Length556
Protein NamesB-lymphocyte antigen CD19 (B-lymphocyte surface antigen B4) (Differentiation antigen CD19) (T-cell surface antigen Leu-12) (CD antigen CD19)
Target Nameb-lymphocyte antigen cd19
Target TypeNA
Gene Age454 ( ENSG00000177455 )
Evolutionary StageMammalia
AlphaFoldDBP15391
Gene CardCD19
Uniprot IDP15391
PfamNA
In ASDno
Allosteric Predictionyes (0.449402324)
Ortholog in AnimalsAlpaca_ CD19 ( ortholog_one2one )
Dog_ CD19 ( ortholog_one2one )
GuineaPig_ CD19 ( ortholog_one2one )
Macaque_ CD19 ( ortholog_one2one )
Mouse_ Cd19 ( ortholog_one2one )
Pig_ CD19 ( ortholog_one2one )
Rat_ Cd19 ( ortholog_one2one )
Rabbit_ CD19 ( ortholog_one2one )
OhnologsNA
ParalogsNA
Tissueappendix, lymph.node, spleen, tonsil
Tissue SpecificityDetected on marginal zone and germinal center B cells in lymph nodes (PubMed:2463100). Detected on blood B cells (at protein level) (PubMed:2463100, PubMed:16672701). {ECO:0000269|PubMed:16672701, ECO:0000269|PubMed:2463100}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 6AL5  (X-ray  3.00A  7JIC  (EM  3.80A 
DBSNP rs2904880  rs34763945 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:1373518, ECO:0000269|PubMed:1383329, ECO:0000269|PubMed:16672701, ECO:0000269|PubMed:1702139, ECO:0000269|PubMed:2463100, ECO:0000269|PubMed:9317126, ECO:0000269|PubMed:9382888};
Single-pass type I membrane protein {ECO:0000305}. Membrane raft {ECO:0000250|UniProtKB:P25918};
Single-pass type I membrane protein {ECO:0000250|UniProtKB:P25918}.
Mouse PG classificationLPG
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