This is the C-terminal domain of DNA repair protein REV1. It interacts with REV7, POLN, POLK and POLI [1-2].

1: Structural basis of recruitment of DNA polymerase zeta by interaction between REV1 and REV7 proteins. Kikuchi S, Hara K, Shimizu T, Sato M, Hashimoto H; J Biol Chem. 2012;287:33847-33852. PMID:22859296

2: Structural insights into the assembly of human translesion polymerase complexes. Xie W, Yang X, Xu M, Jiang T; Protein Cell. 2012;3:864-874. PMID:23143872