SGN_gene 8258 pmt1 PO:0020124 PMID:10353217 IEP NCBI_gi:5381167 A putrescine N-methyltransferase 1 gene taxon:448155 20090702 SGN SGN_gene 8258 pmt1 PO:0009005 PMID:10353217 IEP NCBI_gi:5381167 A putrescine N-methyltransferase 1 gene taxon:448155 20090702 SGN SGN_gene 8259 pmt2 PO:0020124 PMID:10353217 IEP NCBI_gi:5381169 A putrescine N-methyltransferase 2 gene taxon:448155 20090702 SGN SGN_gene 8259 pmt2 PO:0009005 PMID:10353217 IEP NCBI_gi:5381169 A putrescine N-methyltransferase 2 gene taxon:448155 20090702 SGN