>1ZGX_1|Chain A|Guanyl-specific ribonuclease Sa|Streptomyces aureofaciens (1894) DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGAR >1ZGX_2|Chain B|Guanyl-specific ribonuclease Sa|Streptomyces aureofaciens (1894) TRGTRRIITGEATQEDYYTGDHYATFSLIDKTC