S. cerevisiae Nse1 (Swiss:Q07913) forms part of a complex with SMC5-SMC6. This non-structural maintenance of chromosomes (SMC) complex plays an essential role in genomic stability, being involved in DNA repair and DNA metabolism [1,2]. It is conserved in eukaryotes from yeast to human. This domain lies immediately up-stream of the DNA-binding zinc-finger domain, zf-RING-like Pfam:PF08746.

1: Novel essential DNA repair proteins Nse1 and Nse2 are subunits of the fission yeast Smc5-Smc6 complex. McDonald WH, Pavlova Y, Yates JR 3rd, Boddy MN; J Biol Chem 2003;278:45460-45467. PMID:12966087

2: Identification of a novel non-structural maintenance of chromosomes (SMC) component of the SMC5-SMC6 complex involved in DNA repair. Fujioka Y, Kimata Y, Nomaguchi K, Watanabe K, Kohno K; J Biol Chem 2002;277:21585-21591. PMID:11927594