Peptide sequence: CGGSLALMDS GVPISSAVAG VAIGLVTKTD PEKGEIEDYR LLTDILGIED Sequence homology: Cow: 79%; Dog: 79%; Guinea Pig: 86%; Horse: 79%; Human: 100%; Mouse: 93%; Rat: 86%. PNPT1 (polyribonucleotide nucleotidyltransferase 1, mitochondirla) is a RNA-bi