Hck - HCK proto-oncogene, Src family tyrosine kinase

The protein encoded by this gene is a protein-tyrosine kinase that is predominantly expressed in hemopoietic cell types.The encoded protein may help couple the Fc receptor to the activation of the respiratory burst. In addition, it may play a role in neutrophil migration and in the degranulation of neutrophils. Alternate translation initiation site usage, including a non-AUG (CUG) codon, results in the production of two different isoforms in human and mouse. Based on strong sequence conservation amongst these species, this may also be true for rat. [provided by RefSeq, Jul 2008]