- DNA-dependent RNA polymerases
- DNA-directed RNA polymerase
- Enzymes that catalyze DNA template-directed extension of the 3'-end of an RNA strand one nucleotide at a time. They can initiate a chain de novo. In eukaryotes, three forms of the enzyme have been distinguished on the basis of sensitivity to alpha-amanitin, and the type of RNA synthesized. (From Enzyme Nomenclature, 1992).
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- Any of a group of enzymes that promote the synthesis of RNA using DNA or RNA as a template.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.