title: AP1
text: # AP1
  
  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
  