Adaptins are proteins that mediate the formation of vesicles by clathrin-coated pits, through interaction with membrane-bound receptors. There are several types of adaptin, each related to a different group of such receptors. Adaptins show sequence similarity to some COPI subunits, thus they are thought to have a common evolutionary origin. Adapti...
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http://en.wikipedia.org/wiki/Adaptin
Type: Term Pronunciation: ă-dap′tin Definitions: 1. A multisubunit complex of proteins that has a binding site for the cytoplasmic aspect of cargo receptor molecules as well as a binding site for clathrin molecules, thus facilitating the formation of a clathrin coat around a vesicle; currently, four different types of adaptins are known,...
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http://www.medilexicon.com/medicaldictionary.php?t=1051
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