AP1 explained

AP1 or AP-1 may refer to:

Biology

• Activator protein 1, dimeric transcription factor
• Adaptor protein 1, tetrameric clathrin-associated complex

Transportation

• Autopista AP-1, a Spanish motorway
• Caproni A.P.1, a 1934 Italian attack aircraft monoplane
• USS Henderson (AP-1)

Other uses

• Protocol I, or AP 1, a 1977 amendment to the Geneva Conventions

See also

• API (disambiguation)