Tags: Protein.
DNA-directed RNA polymerases I II and III subunit RPABC5 is a protein that in humans is encoded by the POLR2L gene.This gene encodes a subunit of RNA polymerase II the polymerase responsible for synthesizing messenger RNA in eukaryotes. The product of this gene contains four conserved cysteines characteristic of an atypical zinc-binding domain. Like its counterpart in yeast this subunit may be shared by the other two DNA-directed RNA polymerases.