41. The swollen capsid permits ions to diffuse freely into and out of the cavity. 42. Fluorescent dyes have also been shown to be selectively attached to the capsid surface. 43. The CA CTD and NTD have distinct roles during HIV budding and capsid structure. 44. Amino acid 1092 is in close proximity to the central ring of capsid binders. 45. Assembly of portal units is an initial step in constructing capsids of viral progeny. 46. The capsid encloses an internal lipid core containing the structural proteins P3 to P10. 47. The capsid is 70 nanometers in diameter with capsid spikes and 7 structural proteins. 48. The capsid is 70 nanometers in diameter with capsid spikes and 7 structural proteins. 49. The capsid is enclosed in bacterial-like capsular material 75 100 nm thick. 50. N0 is a capsid protein that assembles a capsid to accommodate any RNA sequence.
