>4S2X_1|Chain A|RNA pyrophosphohydrolase|Escherichia coli (83333) SMIDDDGYRPNVGIVICNRQGQVMWARRFGQHSWQFPQGGINPGESAEQAMYRELFEEVGLSRKDVRILASTRNWLRYKLPKRLVRWDTKPVCIGQKQKWFLLQLVSGDAEINMQTSSTPEFDGWRWVSYWYPVRQVVSFKRDVYRRVMKEFASVVMSLAA >4S2X_2|Chain B|RNA (5'-R(*(APC)*GP*U)-3')|null XGU