>1F1W_1|Chain A|PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRC|Gallus gallus (9031) MAEEWYFGKITRRESERLLLNPENPRGTFLVRESETTKGAYCLSVSDFDNAKGLNVKHYKIRKLDSGGFYIWSRTQFSSLQQLVAYYSKHADGLCHRLTNVCPT >1F1W_2|Chain B|S(PTR)VNVQN PHOSPHOPEPTIDE|null SYVNVQN