InterPro domain: IPR038534

This superfamily includes a domain found in the human RPAP2 (RNAP II associated polypeptide) protein and in the yeast Rtr1 protein [ 1 ]. It has been suggested that this group of proteins are regulators of core RNA polymerase II function [ 2 ].

1. Rtr1 is the Saccharomyces cerevisiae homolog of a novel family of RNA polymerase II-binding proteins. Eukaryotic Cell 7, 938-48