surface antigen (208-215) [Hepatitis B Virus]
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
The nucleocapsid of hepatitis B virus is covered by an envelope of HBV surface antigen (HBsAg), which has the common, group-specific determinant a. The four major subtypes of HBsAg, adw, adr, ayw and ayr, are generated, and they have been proposed to represent the phenotypic expression of the four major genotypes of HBV1. HBsAg subtypes show distinct geographical distributions2 and may provide historical information on the migration of ancestors carrying HBV of a particular subtype3.
The HBsAg, localized on the surface of the infectious Dane particle is considered to be the antigen responsible for conferring immunity to infection with hepatitis B4. A larger amount is found on filaments of 20-nm diameter and variable length. By far the most HBsAg is present on small, noninfectious, 20-nm particles5.
Figure1. Surface antigen of the hepatitis B virus
1.Le Bouvier, G. L., Mccollum, R. W., Hierholzer, W. J., Irwin, G. R., Krugman, S. & Giles, J. P. (1972). Subtypes of Australia antigen and hepatitis-B virus. Journal of the American Medical Association 222, 928-930
2.Courouce-Pauty, A. M., Plancon, A. & Soulier, J. P. (1983). Distribution of HBsAg subtypes in the world. Vox sanguinis 44, 197-211.
3.Yamashita, Y., Kurashina, S., Miyakawa, Y. & Mayumi, M. (1975). South-to-north gradient in distribution of the r determinant of hepatitis B surface antigen in Japan. Journal of Infectious Diseases 131, 567-569.
4.A. M. Moriarty, B. H. Hoyer et al. Expression of the hepatitis B virus surface antigen gene in cell culture by using a simian virus 40 vector. Proc. Nati. Acad. Sci. 78: 2606-2610(1981).
|Physical Appearance||A solid|
|Storage||Store at -20°C|
|Solubility||≥89.9 mg/mL in DMSO; ≥25.05 mg/mL in H2O; ≥49.8 mg/mL in EtOH|
|Shipping Condition||Evaluation sample solution: ship with blue ice. All other available sizes: ship with RT, or blue ice upon request.|
|General tips||For obtaining a higher solubility, please warm the tube at 37°C and shake it in the ultrasonic bath for a while. Stock solution can be stored below -20°C for several months.|