Source:http://linkedlifedata.com/resource/umls/id/C0012892
MSH: DNA-dependent DNA polymerases found in bacteria, animal and plant cells. During the replication process, these enzymes catalyze the addition of deoxyribonucleotide residues to the end of a DNA strand in the presence of DNA as template-primer. They also possess exonuclease activity and therefore function in DNA repair. EC 2.7.7.7.,NCI: Nucleotidyltransferases that catalyze the addition of deoxyribonucleotide residues to the end of a DNA. EC 2.7.7.7 or EC 2.7.7.49,NCI: Catalyses DNA-template-directed extension of the 3'- end of a DNA strand by one nucleotide at a time. Cannot initiate a chain de novo. Requires a primer, which may be DNA or RNA. (IUBMB Enzyme Nomenclature)