>1whu_A mol:protein length:104 polynucleotide phosphorylase; 3'-5' RNA exonucleaseGSSGSSGPQKIFTPSAEIVKYTKIIAMEKLYAVFTDYEHDKVSRDEAVNKIRLDTEEHLKEKFPEVDQFEIIESFNIVAKEVFRSIILNEYKRCDGRDSGPSSG