SUN1 is a symbol for the gene, Sad1 and UNC84 domain containing 1, in humans. Other names include: SUN domain-containing protein 1; Sad1/unc-84 protein-like 1; Protein unc-84 homolog A; Sad1 unc-84 domain protein 1; UNC84A. The encoded protein has an amino acid length of 812 and a mass of 90.1 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat, Frog.