This family consists of several DNA-directed RNA polymerase III polypeptides which are related to the Saccharomyces cerevisiae RPC82 protein. RNA polymerase C (III) promotes the transcription of tRNA and 5S RNA genes. In Saccharomyces cerevisiae, the enzyme is composed of 15 subunits, ranging from 160 to about 10 kDa [1]. This region is a probably DNA-binding helix-turn-helix.

1: RPC82 encodes the highly conserved, third-largest subunit of RNA polymerase C (III) from Saccharomyces cerevisiae. Chiannilkulchai N, Stalder R, Riva M, Carles C, Werner M, Sentenac A; Mol Cell Biol 1992;12:4433-4440. PMID:1406632