Abstract
Coated vesicles have been purified from brain, adrenal medulla, and a nonsecreting lymphoma cell line. A single major protein species, clathrin, with an apparent molecular weight of 180,000, forms the coat of all these vesicles. Peptide mapping suggests that the amino acid sequence of clathrin is conserved, irrespective of tissue or species studied. Coated vesicles of different sizes are found. The coats are constructed with variable numbers of clathrin subunits, arranged in closed networks of hexagons and pentagons. The amount of clathrin in lymphoma cells suggests that coated vesicles transfer substantial amounts of membrane within cells, not necessarily in association with a secretory process.
MeSH Terms
Adrenal Medulla/ultrastructure
Amino Acids/analysis
Animals
Brain/ultrastructure
Cattle
Electrophoresis, Polyacrylamide Gel
Lipids/analysis
Membranes/analysis,metabolism,ultrastructure
Organoids/analysis,ultrastructure
Peptides/analysis
Proteins/analysis,metabolism
Swine
Chemicals
Amino Acids
Lipids
Peptides
Proteins
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Pearse B M
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