Maturation of HIV Virion

Stable Identifier
Reaction [transition]
Homo sapiens
Related Species
Human immunodeficiency virus 1
Locations in the PathwayBrowser
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The proteolytic events that cleave Gag and Gag-Pro-Pol are well characterized, but the event that triggers the protease is not well characterized. The PRGag, that is assembled in the immature virion weakly dimerizes, once PR is cleaved from the proprotein PR dimerizes and becomes an efficient protease. This assembly step may be part of the switch. Once the protease becomes active in the immature virion MA, CA, SP1, NC, SP2, P6, PR, RT, and IN are produced. This event, the production of these fragments would be the switch from immature to mature.

Literature References
PubMed ID Title Journal Year
22762019 HIV-1 Assembly, Budding, and Maturation

Sundquist, WI, Kräusslich, HG

Cold Spring Harb Perspect Med 2012
23266279 HIV Gag polyprotein: processing and early viral particle assembly

Lever, AM, Bell, NM

Trends Microbiol. 2013
Catalyst Activity

peptidase activity of GAG-POL Polyprotein (P04585) [extracellular region]

This event is regulated
Name Identifier Synonyms
Human immunodeficiency virus infectious disease DOID:526 HIV infection
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