protein coding gene Sftp-1 surfactant pulmonary associated protein A1 http://identifiers.org/mgd/MGI:109518 Gene MGI:109518 O SP-A Sftp1 Sftpa1 SFTPA1|Sftp1|SP-A|Sftp-1|surfactant pulmonary associated protein A1 surfactant associated protein A1 + SFTPA1 genetic mapping