P95 is an alias for the gene, Nibrin, in humans. Other names include: Cell cycle regulatory protein p95; Nijmegen breakage syndrome protein 1; AT-V1; AT-V2; ATV; NBS; NBS1; P95. The encoded protein has an amino acid length of 754 and a mass of 85.0 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.