Human Immunodeficiency Virus 1 Antigen
recombinant, E. coli
For in vitro use only!
Shipping: shipped on blue ice
Storage Conditions: store at -20 °C
avoid freeze/thaw cycles
Shelf Life: 12 months
Purity: > 95 % (SDS-PAGE)
Form: liquid, supplied in 20 mM Tris-HCl pH 8.0, 8 M urea, 10 mM beta-mercaptoethanol
May be used in ELISA and Western blots, excellent antigen for early detection of HIV seroconvertors with minimal specificity problems.
HIV-1 env gp41 is a non-glycosylated 288 amino acids polypeptide chain (aa 466-753) having a molecular mass of 32kDa. The protein is fused to β-galactosidase (114 kDa) at the N- terminus.
Background: HIV belongs to the retrovirus family, distinguished by possession of a viral reverse transcriptase that transcribes viral RNA into DNA which is integrated into the host-cell genome. The outer envelope is acquired during virion budding and is studded with spikes formed by the two major viral-envelope glycoproteins (the surface protein gp120 and the transmembrane protein gp41). The central core contains four viral proteins (p24 - the major capsid protein, p17 - a matrix protein, p9, and p7), two copies of the HIV RNA genome (to which p7 and p9 are bound), and three viral enzymes (reverse transcriptase, integrase, and protease) essential for viral replication.
Specificity: Immuno reactive with all sera of HIV-I infected individuals.
Zwick et al. (2005) Anti-human immunodeficiency virus type 1 (HIV-1) antibodies 2F5 and 4E10 require surprisingly few crucial residues in the membrane-proximal external region of glycoprotein gp41 to neutralize HIV-1. J. Virol. 79:1252.
Devito et al. (2004) Intranasal HIV-1-gp160-DNA/gp41 peptide prime-boost immunization regimen in mice results in long-term HIV-1 neutralizing humoral mucosal and systemic immunity. J. Immunol. 173:7078.
Hovanessian et al. (2004) The caveolin-1 binding domain of HIV-1 glycoprotein gp41 is an efficient B cell epitope vaccine candidate against virus infection. Immunity. 21:617.
Marin et al. (2004) Antigenic activity of three chimeric synthetic peptides of the transmembrane (gp41) and the envelope (gp120) glycoproteins of HIV-1 virus. Prep. Biochem. Biotechnol. 34:227.
Zhang et al. (2004) Induction of mucosal and systemic neutralizing antibodies against human immunodeficiency virus type 1 (HIV-1) by oral immunization with bovine Papillomavirus-HIV-1 gp41 chimeric virus-like particles. J. Virol. 78:8342.
Gallo et al. (2004) Temperature-dependent intermediates in HIV-1 envelope glycoprotein-mediated fusion revealed by inhibitors that target N- and C-terminal helical regions of HIV-1 gp41. Biochemistry 43:8230.