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The HIV virion is ~100 nm in diameter. Its innermost region consists of a cone-shaped core that includes two copies of the (positive sense) ssRNA genome, the enzymes reverse transcriptase, integrase and protease, some minor proteins, and the major core protein. [8] The genome of human immunodeficiency virus (HIV) encodes 8 viral proteins ...
Diagram of the HIV virion. HIV is similar in structure to other retroviruses. It is roughly spherical [22] with a diameter of about 120 nm, around 100,000 times smaller in volume than a red blood cell. [23]
HIV-1 protease or PR is a retroviral aspartyl protease (retropepsin), an enzyme involved with peptide bond hydrolysis in retroviruses, that is essential for the life-cycle of HIV, the retrovirus that causes AIDS. [1][2] HIV-1 PR cleaves newly synthesized polyproteins (namely, Gag and Gag- Pol [3]) at nine cleavage sites to create the mature ...
PDBsum. structure summary. Viral infectivity factor, or Vif, is an accessory protein found in HIV and other lentiviruses. Its role is to disrupt the antiviral activity of the human enzyme APOBEC (specifically APOBEC3G, "A3G" in short, and other A3 enzymes) by targeting it for ubiquitination and cellular degradation.
An HIV vaccine is a potential vaccine that could be either a preventive vaccine or a therapeutic vaccine, which means it would either protect individuals from being infected with HIV or treat HIV-infected individuals. It is thought that an HIV vaccine could either induce an immune response against HIV (active vaccination approach) or consist of ...
Diagram of an HIV virion structure Scanning electron micrograph of HIV-1, colored green, budding from a cultured lymphocyte. HIV is the cause of the spectrum of disease known as HIV/AIDS. HIV is a retrovirus that primarily infects components of the human immune system such as CD4 + T cells, macrophages and dendritic cells.
The HIV capsid consists of roughly 2000 copies of the p24 protein. The p24 structure is shown in two representations: cartoon (top) and isosurface (bottom) The p24 capsid protein is the most abundant HIV protein with each virus containing approximately 1,500 to 3,000 p24 molecules. [1]
Structure of HIV, a lentivirus. The virions are enveloped viruses 80–100 nm in diameter. [6] They are spherical or pleomorphic, with capsid cores that mature to a cylindrical or conical shape. [6] [7] Projections of envelope make the surface appear rough, or tiny spikes (about 8 nm) may be dispersed evenly over the surface. [6]
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