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Catalogue Number
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HIV-134
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Introduction
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HIV-1 and HIV-2 appear to package their RNA differently. HIV-1 binds to any appropriate RNA whereas HIV-2 preferentially binds to mRNA which creates the Gag protein itself. This means that HIV-1 is better able to mutate. HIV-2 is transmitted in the same ways as HIV-1: Through exposure to bodily fluids such as blood, semen, tears and vaginal fluids. Immunodeficiency develops more slowly with HIV-2. HIV-2 is less infectious in the early stages of the virus than with HIV-1. The infectiousness of HIV-2 increases as the virus progresses. Major differences include reduced pathogenicity of HIV-2 relative to HIV-1, enhanced immune control of HIV-2 infection and often some degree of CD4-independence. Despite considerable sequence and phenotypic differences between HIV-1 and 2 envelopes, structurally they are quite similar. Both membrane-anchored proteins eventually form the 6-helix bundles from the N-terminal and C-terminal regions of the ectodomain, which is common to many viral and cellular fusion proteins and which seems to drive fusion. HIV-1 gp41 helical regions can form more stable 6-helix bundles than HIV-2 gp41 helical regions however HIV-2 fusion occurs at a lower threshold temperature (25°C), does not require Ca2+ in the medium, is insensitive to treatment of target cells with cytochalasin B, and is not affected by target membrane glycosphingolipid composition.
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Description
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HIV-2 gp32 recombinant- contains the full-length sequence of HIV-2 envelope immunodominant regions gp32. The protein is fused with ?-galactosidase (114 kDa) at N-terminus.
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Source
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Escherichia Coli.
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Physical Appearance
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Sterile filtered colorless clear solution.
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Formulation
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The HIV-2 gp32 solution (1mg/ml) 0.01M Na2CO3, 0.01M Na3EDTA, 0.014 M?-mercaptoethanol and 0.02% Sarcosyl.
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Purity
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Greater than 95.0% as determined by SDS-PAGE.
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Stability
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Protein should be stored at 4°C. Refrigerate Upon arrival. DO NOT FREEZE.
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Specificity
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Immunoreactive with all sera of HIV-2 infected individuals.
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Applications
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HIV-2 gp32 antigen is suitable for ELISA and Western blots, excellent antigen for early detection of HIV seroconvertors with minimal specificity problems.
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Usage
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ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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Related Products
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| Contact Us |
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Toll Free Phone: 1-(866)-245-0885 Toll Free Fax: 1-(866)-796-4944 Postal Address: PO Box 6591, East Brunswick, 08816 NJ |
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Toll Free Phone: 00-800-800-66666 Toll Free Fax: 00-800-800-67890 |
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International Phone: +972-8-9471175 International Fax: +972-8-9460534 Postal Address: PO Box 4157, Ness-Ziona, 74140 Israel
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Website : www.prospecbio.com Email: info@prospecbio.com |
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