HIV-1 (group M, subtype B, Isolate MN) gp120 Protein (His)

HIV-1 (group M, subtype B, Isolate MN) gp120 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 55.8 kDa and the accession number is Q9YUL5.

HIV-1 (group M, subtype B, Isolate MN) gp120 Protein (His)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 161,000

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説明	HIV-1 (group M, subtype B, Isolate MN) gp120 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 55.8 kDa and the accession number is Q9YUL5.

Species	HIV
Expression Host	HEK293 Cells
Tag	C-His
Accession Number	Q9YUL5
Construction	The HIV1(group M, subtype B, isolate MN) Envelope glycoprotein gp160 Protein(gp120 subunit) (AAC31819.1) (Thr30-Arg513) was expressed with a polyhistidine tag at the C-terminus.
Protein Purity	> 95 % as determined by SDS-PAGE.
分子量	55.8 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	The HIV-1 gp120 envelope protein, a glycoprotein that is part of the outer layer of the virus, is an essential component in the multi-tiered viral entry process. It presents itself as viral membrane spikes consisting of 3 molecules of gp120 linked together and anchored to the membrane by gp41 protein. Gp120 is essential for viral infection as it facilitates HIV entry into the host cell and this is its best-known and most researched role in HIV infection. However, it is becoming increasingly evident that gp120 might also be facilitating viral persistence and continuing HIV infection by influencing the T cell immune response to the virus. The surface protein gp120 attaches the virus to the host lymphoid cell by binding to the primary receptor CD4. Gp120 binding to its receptor CD4 and co-receptor, CXCR4 or CCR5 is required for fusion of viral and cellular membranes. Several mechanisms might be involved in this process of which gp120 binding to the CD4 receptor of T cells is the best known and most important interaction as it facilitates viral entry into the CD4+ cells and their depletion, a hallmark of the HIV infection. Gp120 is shed from the viral membrane and accumulates in lymphoid tissues in significant amounts. Despite the overall genetic heterogeneity of the gp120 glycoprotein, the conserved CD4 binding site provides an attractive antiviral target. Interaction between gp120 and ITGA4/ITGB7 would allow the virus to enter GALT early in the infection, infecting and killing most of GALT's resting CD4+ T-cells. This T-cell depletion is believed to be the major insult to the host immune system leading to AIDS.

参考文献

1. Kadow J, et al. (2006) Small-molecule HIV-1 gp120 inhibitors to prevent HIV-1 entry: an emerging opportunity for drug development. Curr Opin Investig Drugs. 7(8): 721-6. 2. Stevceva L, et al. (2007) Immune responses to HIV Gp120 that facilitate viral escape. Curr HIV Res. 5(1): 47-54. 3. Yoon V, et al. (2010) The GP120 molecule of HIV-1 and its interaction with T cells. Curr Med Chem. 17(8): 741-9.

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HIV-1 (group M, subtype B, Isolate MN) gp120 Protein (His)

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