The mass of the Sindbis virus nucleocapsid suggests it has T = 4 icosahedral symmetry.
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.
Paredes
A M
AM
Cell Research Institute, University of Texas, Austin, Texas 78713-7640.
Simon
M N
MN
Brown
D T
DT
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
D046911:Macromolecular Substances; D014764:Viral Proteins