HIV-1 gp41 Subtype-b

HIV-1 gp41 Subtype-b Recombinant
Cat. No.
BT21296
Source

Escherichia Coli.

Synonyms
Appearance

Sterile Filtered clear solution.

Purity

Protein is >95% pure as determined by 10% PAGE (coomassie staining).

Usage
THE BioTek'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.
Shipped with Ice Packs
In Stock

Description

Recombinant HIV-1 gp41 Subtype-b produced in E. coli having a Mw of 42kDa.
Recombinant HIV-1 gp41 Subtype-b is fused to GST tag at its N-terminus and purified by proprietary chromatographic technique.

Product Specs

Introduction
Human immunodeficiency virus (HIV) is a retrovirus that can lead to acquired immunodeficiency syndrome (AIDS), a condition in which the immune system gradually fails, leaving the body vulnerable to opportunistic infections and cancers. HIV primarily targets and destroys CD4+ T cells, a type of white blood cell crucial for immune responses. The virus compromises the immune system through three main mechanisms: direct viral killing of infected cells, increased rates of apoptosis (programmed cell death) in infected cells, and destruction of infected CD4+ T cells by CD8 cytotoxic lymphocytes. As CD4+ T cell counts dwindle below a critical threshold, cell-mediated immunity is severely compromised, rendering the body susceptible to opportunistic infections. HIV is classified as a member of the genus Lentivirus, belonging to the family Retroviridae. Lentiviruses share common structural and biological characteristics. These viruses are known to infect a wide range of species, typically causing prolonged illnesses with extended incubation periods. HIV-1 gp41 Subtype-b exhibits strong reactivity with antibodies found in the blood of HIV-infected individuals. Notably, over 90% of in-house HIV-1 samples tested positive in rapid diagnostic tests using this subtype.
Description
Recombinant HIV-1 gp41 Subtype-b, with a molecular weight of 42kDa, is produced in E. coli. The recombinant protein is engineered with a GST tag fused to its N-terminus and undergoes purification using a proprietary chromatographic technique.
Physical Appearance
Sterile Filtered clear solution.
Formulation
HIV-1 gp41 Subtype-b solution is supplied in a buffer containing 25mM K₂CO₃, 4M urea, and PBS.
Stability
For short-term storage (2-4 weeks), store the unopened vial at 4°C. For extended storage, freeze the product at -20°C. To ensure stability during long-term storage, it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.
Purity
The purity of the protein is greater than 95%, as determined by 10% SDS-PAGE analysis with Coomassie blue staining.
Applications
Immunoassay.
Source

Escherichia Coli.

Product Science Overview

Introduction

The Human Immunodeficiency Virus type 1 (HIV-1) is the primary causative agent of Acquired Immunodeficiency Syndrome (AIDS). The virus’s envelope glycoproteins, gp120 and gp41, play crucial roles in the virus’s ability to infect host cells. The gp41 protein, in particular, is essential for the fusion of the viral envelope with the host cell membrane, facilitating viral entry and subsequent infection.

Structure and Function of gp41

The gp41 protein is a transmembrane glycoprotein that is non-covalently associated with gp120. Together, they form the HIV-1 envelope spike, which is responsible for the initial attachment and entry of the virus into host cells. The gp41 protein consists of several key regions:

  • Fusion Peptide (FP): This region is responsible for inserting into the host cell membrane, initiating the fusion process.
  • Heptad Repeat 1 (HR1) and Heptad Repeat 2 (HR2): These regions form a six-helix bundle that brings the viral and cellular membranes into close proximity, facilitating fusion.
  • Membrane-Proximal External Region (MPER): This region is critical for the stability and function of the gp41 protein and is a target for broadly neutralizing antibodies .
Recombinant gp41 Subtype-b

Recombinant gp41 Subtype-b refers to the laboratory-produced version of the gp41 protein from the HIV-1 subtype B strain. This subtype is the most prevalent in North America and Europe. The recombinant form is used extensively in research to study the protein’s structure, function, and interactions with antibodies and other molecules.

Importance in Research and Vaccine Development

The recombinant gp41 Subtype-b protein is invaluable in HIV research for several reasons:

  1. Structural Studies: Understanding the structure of gp41 is crucial for elucidating the mechanisms of viral entry and fusion. High-resolution structures of gp41, often in complex with neutralizing antibodies, provide insights into potential targets for therapeutic intervention .
  2. Antibody Interactions: Studying how broadly neutralizing antibodies interact with gp41 can inform the design of vaccines that elicit similar immune responses. The MPER region, in particular, is a focus of vaccine research due to its vulnerability to neutralizing antibodies .
  3. Drug Development: Recombinant gp41 proteins are used to screen for potential inhibitors of viral fusion. Compounds that can block the function of gp41 may serve as effective antiretroviral drugs .

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