Gene Information
Gene NameBLK
OrganismHomo sapiens (Human)
Gene Length505
Protein NamesTyrosine-protein kinase Blk (EC 2.7.10.2) (B lymphocyte kinase) (p55-Blk)
Target Nametyrosine-protein kinase blk
Target TypeNA
Gene Age544 ( ENSG00000136573 )
3 ( ENSG00000285369 )
Evolutionary StageVertebrata
AlphaFoldDBP51451
Gene CardBLK
Uniprot IDP51451
PfamPF07714; PF00017; PF00018
In ASDno
Allosteric Predictionyes (0.874828653)
Ortholog in AnimalsAlpaca_ BLK ( ortholog_one2one )
Dog_ BLK ( ortholog_one2one )
GuineaPig_ BLK ( ortholog_one2one )
Macaque_ BLK ( ortholog_one2one )
Mouse_ Blk ( ortholog_one2one )
Pig_ BLK ( ortholog_one2one )
Rat_ Blk ( ortholog_one2one )
Rabbit_ BLK ( ortholog_one2one )
OhnologsHCK, YES1, SRC, FGR, LCK
ParalogsFGR, FRK, JAK3, BMX, FER, BTK, FES, JAK1, PTK2B, SYK, TYK2, LYN, ZAP70, TXK, TNK2, PTK2, SRMS, TEC, CSK, STYK1, YES1, LCK, SRC, JAK2, ITK, MATK, TNK1, HCK, ABL1, ABL2, FYN, PTK6
Tissuelymph.node, spleen, appendix, tonsil
Tissue SpecificityExpressed in lymphatic organs, pancreatic islets, Leydig cells, striate ducts of salivary glands and hair follicles. {ECO:0000269|PubMed:19667185}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB NA 
DBSNP rs35339715  rs55758736 
Subcellular location [CC]Cell membrane {ECO:0000250};
Lipid-anchor {ECO:0000250}. Note=Present and active in lipid rafts. Membrane location is required for the phosphorylation of CD79A and CD79B (By similarity). {ECO:0000250}.
Mouse PG classificationLPG
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