Virology

human immunodeficiency virus-VIROLOGY
human immunodeficiency virus-1, Human immunodeficiency computer virus, is a lentivirus (1). The lentivirus is a member of the retrovirus family (1).The reproductive cycles/second of HIV-1 has a series of steps that include enlargement, entry, uncoating, gene expression, genome replication, concourse and egress/budding (2). Viral carrel tropism is the type of carrels a particular virus infects (2). HIV-1 hindquarterss various immune cells with its main target being the lymphocyte CD4 helper cell, part of the T cell group (2).
Attachment of the HIV virus happens once the virus comes into contact with a T cell(2). Env, an HIV protein, codes for gp160-glycoprotein (3). Gp160 is a precursor to gp120 (cap) and gp41(stem)(3). Gp120 and gp41 aid the HIV virus in attaching to the T-cell co-receptors (4). Gp41 attaches to CD4 receptors and gp120 attaches to CCR5 or CXCR4 receptors, cognise as beta-chemokine receptors (2).
Entry of the virus into the cell is mediated by gp120 (2). Upon completion of attachment to CD4 , gp120 releases proteins that split apart allowing the hidden gp41 to attach the beta-chemokine receptors (2). The viral envelope of the HIV virus comes into contact with the entertain cell membrane; where fusion occurs and the nucleocapsid of the viral protein is inserted into the host cell(2).




Uncoating of the HIV virus is the actual unraveling of the nucleocapsid, where the RNA genetic core of the virus is located (2).
Gene expression is achieved by call on transcription(RT) (2). snarf transcription is when a single stranded RNA is reborn to double stranded desoxyribonucleic acid (2). This is done by reverse transcriptase which HIV uses to manipulate the T-cell cycle to reproduce the HIV virus (2). The host cell cytoplasm contains nucleotides that make this deal possible (2). When viral DNA is then inserted into the host DNA integration has occurred (4). Transportation of the viral DNA is carried out by viral protein R (VPR) (2). It transports the viral DNA across the cell membrane to the host cell nucleus,...If you want to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper