Gene Information
Gene NameCD6
OrganismHomo sapiens (Human)
Gene Length668
Protein NamesT-cell differentiation antigen CD6 (T12) (TP120) (CD antigen CD6) [Cleaved into: Soluble CD6]
Target Namet-cell differentiation antigen cd6
Target TypeClinical trial target
Gene Age987 ( ENSG00000013725 )
Evolutionary StageVertebrata
AlphaFoldDBP30203
Gene CardCD6
Uniprot IDP30203
PfamPF00530
In ASDno
Allosteric Predictionyes (0.050320666)
Ortholog in AnimalsAlpaca_ CD6 ( ortholog_one2one )
Dog_ CD6 ( ortholog_one2one )
GuineaPig_ CD6 ( ortholog_one2one )
Macaque_ CD6 ( ortholog_one2one )
Mouse_ Cd6 ( ortholog_one2one )
Pig_ CD6 ( ortholog_one2one )
Rat_ Cd6 ( ortholog_one2one )
Rabbit_ CD6 ( ortholog_one2one )
OhnologsNA
ParalogsLOX, SSC4D, SSC5D, LGALS3BP, LOXL4, SCART1, CD163, PRSS12, DMBT1, LOXL3, CD5, LOXL1, CD5L, LOXL2, CD163L1
Tissueappendix, lymph.node, spleen
Tissue SpecificityDetected on thymocytes (PubMed:15294938). Detected on peripheral blood T-cells (PubMed:15048703, PubMed:16352806). Detected on natural killer (NK) cells (PubMed:16352806). Soluble CD6 is detected in blood serum (at protein level) (PubMed:17601777). Detected in spleen, thymus, appendix, lymph node and peripheral blood leukocytes (PubMed:9013954). Expressed by thymocytes, mature T-cells, a subset of B-cells known as B-1 cells, and by some cells in the brain. {ECO:0000269|PubMed:15048703, ECO:0000269|PubMed:15294938, ECO:0000269|PubMed:16352806, ECO:0000269|PubMed:17601777, ECO:0000269|PubMed:9013954}.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.001000(Rat);NULL(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 5A2E  (X-ray  3.15A 
DBSNP rs11230562  rs11230563  rs2074225  rs12360861  rs34974368  rs2074233 
Subcellular location [CC]Cell membrane {ECO:0000269|PubMed:15048703, ECO:0000269|PubMed:15294938, ECO:0000269|PubMed:16352806, ECO:0000269|PubMed:16914752, ECO:0000269|PubMed:17371992, ECO:0000269|PubMed:17601777, ECO:0000269|PubMed:24945728, ECO:0000269|PubMed:9013954};
Single-pass type I membrane protein {ECO:0000269|PubMed:17371992}. Note=Detected at the immunological synapse, i.e, at the contact zone between antigen-presenting dendritic cells and T-cells (PubMed:15294938, PubMed:16352806). Colocalizes with the TCR/CD3 complex at the immunological synapse (PubMed:15294938). {ECO:0000269|PubMed:15294938}.;
[Soluble CD6]: Secreted {ECO:0000269|PubMed:17601777}. Note=The origins of the secreted form are not clear, but it might be created by proteolytic shedding of the ectodomain. {ECO:0000305}.
Mouse PG classificationNA
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