>1T2I_1|Chain A|Guanyl-specific ribonuclease Sa|Streptomyces aureofaciens (1894) DVSGTVCLSALPPEATDTLNLIASDGPFPYSQDGVVFQNRESVLPTQSYGYYHEYTVITPGARTRGTRRIITGEAWQEDYYTGDHYATFSLIDQTC