LF is an alias for the gene, Lactotransferrin, in humans. Other names include: Lactoferrin; Growth-inhibiting protein 12; Talalactoferrin; GIG12; HEL110; HLF2. The encoded protein is an enzyme with an amino acid length of 710 and a mass of 78.2 kDa. Other isoforms may exist. LF is a member of the Transferrin family. This gene shares homology with other species, including: Mouse, Rat.