what is a leucine zipper
The leucine zipper is a dimeric parallel coiled-coil, but amphipathic helices can also oligomerize to form parallel coiled-coils that are trimers, tetramers or pentamers.The majority of B-ZIP leucine zippers contain valines in the a positionandleucinesinthedposition.Kimandcolleagues changed both of these amino acids to isoleucine, which