41. The viral RNA is packed into the icosahedral capsid which is contained inside the protein inner envelope. 42. Cryo-electron microscopy has established that E3BP binds to each of the icosahedral faces in yeast. 43. The virons are non-enveloped, round with an icosahedral symmetry ( T = 1 ). 44. The capsid is round with icosahedral symmetry with triangulation number ( T ) = 3 and 4. 45. The capsid appears hexagonal / spherical and has icosahedral symmetry ( T = 1 or T = 3 46. The icosahedral symmetry of the sphere generates 7 uniform polyhedra, and a 1 more by alternation. 47. For example, in the disdyakis triacontahedron one full face is a fundamental domain of icosahedral symmetry. 48. In fact, the binary icosahedral group is the smallest ( non-trivial ) superperfect group. 49. The icosahedral shape is derived from the structure of an icosahedron which has 20 equilateral triangular faces. 50. Mamavirus, like other mimiviridae, is icosahedral with a core capsid and a peripheral fiber layer.
