passages.id: split_4_test_1504_passage
passages.type: progene_text
passages.text: It is very similar to members of the Src family of cytoplasmic tyrosine kinases in that it contains very homologous SH3 and SH2 domains ( Abram and Courtneidge , 2000. Src family tyrosine kinases and growth factor signaling. Exp. Cell. Res. 254 , 1 - 13. ) .