E. coli Active E Antigen (DAG-P2938)

E. coli Active E Antigen (full length), recombinant protein from E. coli Datasheet

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Product Overview
Active E. coli Hepatitis B Virus E Antigen full length protein
Nature
Recombinant
Tag/Conjugate
Unconjugated
Bio-activity
Active E. coli Hepatitis B Virus E Antigen full length protein is immunoreactive with sera of HBV-infected individuals. It contains the Hepatitis B Virus HBe adw immunodominant region.
Purity
> 95 % by SDS-PAGE.This antigen is purified by proprietary chromatographic techniques.
Format
Liquid
Buffer
Preservative: None Constituents: 50% Glycerol, 1.5M Urea, 25mM Tris HCl, pH 8.0
Storage
Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid repeated freeze / thaw cycles. Preservative: None Constituents: 50% Glycerol, 1.5M Urea, 25mM Tris HCl, pH 8.0 This product is an active protein and may elicit a biological response in vivo,
Introduction
Escherichia coli; commonly abbreviated E. coli) is a gram-negative, facultatively anaerobic, rod-shaped bacterium of the genus Escherichia that is commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harml
Antigen Description
Hepatitis B e-antigen (HBeAg) is a viral protein associated with HBV infections. Unlike the surface antigen, the e-antigen is found in the blood only when there are viruses also present. When the virus goes into "hiding," the e-antigen will no longer be present in the blood. HBeAg is often used as a marker of ability to spread the virus to other people (infectivity). Measurement of e-antigen may also be used to monitor the effectiveness of HBV treatment; successful treatment will usually eliminate HBeAg from the blood and lead to development of antibodies against e-antigen (anti-HBe). There are some types (strains) of HBV that do not make e-antigen; these are especially common in the Middle East and Asia. In areas where these strains of HBV are common, testing for HBeAg is not very useful.
Keywords
Core antigen; Core protein; HBe antigen; HBeAg; HBVgp4; Pre C,C; Precore protein; Precore/core; Precore/core ORF; Precore/core protei; E. coli HBeAg; Escherichia coli HBeAg

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