. . . . . . . . . . . . . . . . . . . . "pnp_helpy"^^ . "q59gg4_human"^^ . "HP_1213"^^ . "Polynucleotide phosphorylase"^^ . "pnp"^^ . . . . . . . . "Polyribonucleotide nucleotidyltransferase"^^ .