Biology:Src family kinase

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Src kinase family is a family of non-receptor tyrosine kinases that includes nine members: Src, Yes, Fyn, and Fgr, forming the SrcA subfamily, Lck, Hck, Blk, and Lyn in the SrcB subfamily, and Frk in its own subfamily. Frk has homologs in invertebrates such as flies and worms, and Src homologs exist in organisms as diverse as unicellular choanoflagellates, but the SrcA and SrcB subfamilies are specific to vertebrates. Src family kinases contain six conserved domains: a N-terminal myristoylated segment, a SH2 domain, a SH3 domain, a linker region, a tyrosine kinase domain, and C-terminal tail.[1]

Src family kinases interact with many cellular cytosolic, nuclear and membrane proteins, modifying these proteins by phosphorylation of tyrosine residues. A number of substrates have been discovered for these enzymes.[2][3][4] Deregulation, including constitutive activation or over expression, may contribute to the progression of cellular transformation and oncogenic activity.[5]

See also[edit]

  • Proto-oncogene tyrosine-protein kinase Src


  1. "Src family kinases, key regulators of signal transduction". Oncogene 23 (48): 7906–9. October 2004. doi:10.1038/sj.onc.1208160. PMID 15489908. 
  2. "Identification of c-Src tyrosine kinase substrates in platelet-derived growth factor receptor signaling". Molecular Oncology 3 (5–6): 439–50. December 2009. doi:10.1016/j.molonc.2009.07.001. PMID 19632164. 
  3. "Identification of c-Src tyrosine kinase substrates using mass spectrometry and peptide microarrays". Journal of Proteome Research 7 (9): 3900–10. September 2008. doi:10.1021/pr800198w. PMID 18698806. 
  4. "Global impact of oncogenic Src on a phosphotyrosine proteome". Journal of Proteome Research 7 (8): 3447–60. August 2008. doi:10.1021/pr800187n. PMID 18563927. 
  5. "Targeting Src family kinases in anti-cancer therapies: turning promise into triumph". Trends in Pharmacological Sciences 33 (3): 122–8. March 2012. doi:10.1016/ PMID 22153719. family kinase was the original source. Read more.