Bpifa1 is a symbol for the gene, BPI fold containing family A member 1, in humans. Other names include: BPI fold-containing family A member 1; Lung-specific protein X; Nasopharyngeal carcinoma-related protein; Palate lung and nasal epithelium clone protein; Secretory protein in upper respiratory tracts; Short PLUNC1; SPLUNC1; Tracheal epithelium-enriched protein; Von Ebner protein Hl; BPI fold containing family A, member 1; LUNX; NASG; PLUNC; SPURT; bA49G10.5. The encoded protein has an amino acid length of 256 and a mass of 26.7 kDa. Other isoforms may exist. This gene shares homology with other species, including: Mouse, Rat.