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Medical Definition of Polynucleotide methyltransferases
1. Enzymes that catalyze the methylation of purine and/or pyrimidine bases of polynucleotides, or of the sugars of polynucleotides. Synonym: polynucleotide methylases. (05 Mar 2000)
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1. Enzymes that catalyze the methylation of purine and/or pyrimidine bases of polynucleotides, or of the sugars of polynucleotides. Synonym: polynucleotide methylases. (05 Mar 2000)