title: The mass of the Sindbis virus nucleocapsid suggests it has T = 4 icosahedral symmetry.
abstract: The mass of the nucleocapsid of the alphavirus Sindbis was determined by scanning transmission electron microscopy. The nucleocapsid was found to have an average mass of 10.54 x 10(6) Da with the largest percentage of particles showing a mass of 10.7 to 10.9 x 10(6) Da. These data predict that the nucleocapsid contains 240 copies of protein and is a T = 4 icosahedron.
authors.affiliation: Cell Research Institute, University of Texas, Austin, Texas 78713-7640.
authors.forename: A M
authors.initials: AM
authors.lastname: Paredes
authors.forename: M N
authors.initials: MN
authors.lastname: Simon
authors.forename: D T
authors.initials: DT
authors.lastname: Brown
mesh_terms: D002213:Capsid / Q000737:chemistry* / Q000648:ultrastructure; D046911:Macromolecular Substances; D008854:Microscopy, Electron; D012845:Sindbis Virus / Q000737:chemistry* / Q000648:ultrastructure; D014764:Viral Proteins / Q000737:chemistry / Q000648:ultrastructure
chemical_list: D046911:Macromolecular Substances; D014764:Viral Proteins