Tyrosine-protein kinase Lyn is a protein that in humans is encoded by the LYNgene.[5]
Lyn is a member of the Src family of protein tyrosine kinases, which is mainly expressed in hematopoietic cells,[6] in neural tissues[7] liver, and adipose tissue.[8] In various hematopoietic cells, Lyn has emerged as a key enzyme involved in the regulation of cell activation. In these cells, a small amount of LYN is associated with cell surface receptor proteins, including the B cell antigen receptor (BCR),[9][10]CD40,[11] or CD19.[12] The abbreviation Lyn is derived from Lck/Yes novel tyrosine kinase, Lck and Yes also being members of the Src kinase family.
^Umemori H, Wanaka A, Kato H, Takeuchi M, Tohyama M, Yamamoto T (Dec 1992). "Specific expressions of Fyn and Lyn, lymphocyte antigen receptor-associated tyrosine kinases, in the central nervous system". Brain Research. Molecular Brain Research. 16 (3–4): 303–10. doi:10.1016/0169-328X(92)90239-8. PMID1337939.