title: Apolipoprotein A-II: a protein in search of a function.
abstract: OBJECTIVE
  To summarize current findings relevant to the function of apolipoprotein A-II (apoA-II), a major protein component of high density lipoproteins (HDL).
  
  
  METHODS
  Studies relating to the structure, regulation and genetics of apoA-II are reviewed. These include studies of apoA-II expression in humans and mouse animal models. All studies cited were published between 1972 and 1993.
  
  
  CONCLUSIONS
  Since its discovery over 20 years ago, apoA-II has been a protein in search of a function. In fact, it has often been stated that apoA-II has no major function in plasma lipoprotein metabolism. While it is clear that apoA-II does not serve an essential function in HDL metabolism, the evidence overwhelmingly indicates that apoA-II importantly influences HDL functional states and suggests strongly that apoA-II is likely to contribute to atherogenesis.
authors.affiliation: Department of Medicine, University of California, Los Angeles.
authors.forename: C C
authors.initials: CC
authors.lastname: Hedrick
authors.forename: A J
authors.initials: AJ
authors.lastname: Lusis
mesh_terms: D000818:Animals; D016633:Apolipoprotein A-II / Q000502:physiology*; D001161:Arteriosclerosis / Q000503:physiopathology; D006801:Humans
chemical_list: D016633:Apolipoprotein A-II