SFTPA2, COLEC5, PSAP, SFTP1, SFTPA, SFTPA2B, Pulmonary surfactant-associated protein A2, 35kD pulmonary surfactant-associated protein, Alveolar proteinosis protein, Collectin-5

This gene is one of several genes encoding pulmonary-surfactant associated proteins (SFTPA) located on chromosome 10. Mutations in this gene and a highly similar gene located nearby, which affect the highly conserved carbohydrate recognition domain, are associated with idiopathic pulmonary fibrosis. The current version of the assembly displays only a single centromeric SFTPA gene pair rather than the two gene pairs shown in the previous assembly which were thought to have resulted from a duplication.