dynamin is associated with the putamen type of vesicle.
dynamin is associated with which type of vesicle?
putamen
dynamin









































dynamin is a gtpase responsible for endocytosis in the eukaryotic cell. dynamin is part of the "dynamin superfamily", which includes classical dynamins, dynamin-like proteins, mx proteins, opa, mitofusins, and gbps. members of the dynamin family are principally involved in the scission of newly formed vesicles from the membrane of one cellular compartment and their targeting to, and fusion with, another compartment, both at the cell surface (particularly caveolae internalization) as well as at the golgi apparatus. dynamin family members also play a role in many processes including division of organelles, cytokinesis and microbial pathogen resistance.









































section::::structure.
dynamin
during clathrin-mediated endocytosis, the cell membrane invaginates to form a budding vesicle. dynamin binds to and assembles around the neck of the endocytic vesicle, forming a helical polymer arranged such that the gtpase domains dimerize in an asymmetric manner across helical rungs. the polymer constricts the underlying membrane upon gtp binding and hydrolysis via conformational changes emanating from the flexible neck region that alters the overall helical symmetry. constriction around the vesicle neck leads to the formation of a hemi-fusion membrane state that ultimately results in membrane fission, pinching off the vesicle from the parent membrane. constriction may be in part the result of the twisting activity of dynamin, which makes dynamin the only molecular motor known to have a twisting activity.
dynamin