DNA-directed RNA polymerase II subunit RPB3 (POLR2C)

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs.

Pol II is the central part of the basal RNA polymerase II transcription machinery. It's composed of cellular elements that move relative to each other.