Bcl-xL is an alias for the gene, BCL2-like 1, in humans. Other names include: Bcl-2-like protein 1; Bcl2-L-1; Apoptosis regulator Bcl-X; protein phosphatase 1, regulatory subunit 52; BCL-XL/S; BCL2L; BCLX; BCLXL; BCLXS; Bcl-X; PPP1R52; bcl-xL; bcl-xS. The encoded protein has an amino acid length of 233 and a mass of 26.0 kDa. Other isoforms may exist. Bcl-xL is a member of the Bcl-2 family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Chicken.