http://identifiers.org/mgd/MGI:1918951 O Gene genetic mapping MGI:1918951 polynucleotide phosphorylase|1200003F12Rik|PNPase + Pnpt1 polynucleotide phosphorylase 1200003F12Rik protein coding gene PNPase polyribonucleotide nucleotidyltransferase 1