Nse1 non-SMC component of SMC5-6 complexS. cerevisiae Nse1 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. It is conserved in eukaryotes from yeast to human. This domain lies immediatley up-stream of the DNA-binding zinc-finger domain, zf-RING-like pfam08746.