Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Upper panel Diagrammatic representation of the 10q22–23 locus of the human chromosome 10. The two human SP-A genes SFTPA1 and SFTPA2 are located in opposite transcriptional orientation, flanking a pseudogene (SFTPA3P). Lower panel. SP-A1 and SP-A2 common gene structure. Coding exons are indicated with numbers, and untranslated exons are indicated with letters. A* represents exons A, A′, and A″.
