BLK proto-oncogene, Src family tyrosine kinase (BLK)

BLK (B lymphocyte kinase) is a non-receptor tyrosine kinase belonging to the Src family of proto-oncogenes. It is primarily expressed in B-lineage cells and plays a significant role in B-cell receptor (BCR) signaling and B-cell development. The protein encoded by the BLK gene is involved in cell proliferation and differentiation, particularly within the immune system. Activation of BLK leads to downstream phosphorylation events that are critical for further signal propagation within the cell. While direct disease associations specific to BLK mutations or dysregulation remain less well characterized compared with some other Src-family members, aberrant activity or altered expression could theoretically contribute to disorders involving abnormal proliferation/differentiation of lymphoid lineages.

Other names

B lymphocyte kinasep55-Blk

Kinase inhibition (potential, not explicitly stated for specific BLK inhibitors in the text, but inferred from general Src family kinase targeting)