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Catalog Number:

bs-1662P

Species:

HBV

Host:

E.coli

AA Seq:

1-212/212

Predicted MW:

21

Detected MW:

25 kDa

Tags:

Tag free

Activity:

Not tested

Endotoxin:

Not analyzed

Purity:

>95% as determined by SDS-PAGE

Purification:

AC

Concentration:

＞0.5 mg/ml

Storage:

Stored at -70℃ or -20℃. Avoid repeated freeze/thaw cycles.

Background:

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.