| clathrin | <cell biology> Protein composed of 3 heavy chains (180 kD) and 3 light chains (34 and 36 kD), that forms the basketwork of triskelions around a coated vesicle. There are two genes for light chains, each of which can generate two distinct transcripts by tissue specific alternative splicing. (18 Nov 1997) |
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| clathrin adaptor proteins | <cell biology> Family of proteins that bind to clathrin and promote its assembly into vesicle coats. Different adaptor proteins are associated with coated vesicles of Golgi or plasma membrane origin. (18 Nov 1997) |