>1Z3L_1|Chain A[auth S]|Ribonuclease pancreatic, S-Peptide|null KETAAAKAERQHLDS >1Z3L_2|Chain B[auth E]|Ribonuclease pancreatic, S-Protein|Bos taurus (9913) SSSNYCNQMMKSRNLTKDRCKPVNTFVHESLADVQAVCSQKNVACKNGQTNCYQSYSTMSITDCRETGSSKYPNCAYKTTQANKHIIVACEGNPYVPVHFDASV