>1NZL_1|Chains A, B|Tyrosine-protein kinase transforming protein SRC|Rous sarcoma virus (strain Schmidt-Ruppin) (11889) AEEWYFGKITRRESERLLLNPENPRGTFLVRESETTKGAYCLSVSDFDNAKGLNVKHYKIRKLDSGGFYITSRTQFSSLQQLVAYYSKHADGLCHRLTNVCPT >1NZL_2|Chain C|Doubly phosphorylated peptide ligand (PQpYEpYIPI)| PQYEYIPA