Results 1 to 10 of about 59,839 (262)
Proteins of hepatitis B surface antigen [PDF]
Journal of Virology, 1977 Purified 22-nm forms of hepatitis B surface antigen (Hbsag) representing the three major antigenic subtypes (adw, ayw, and adr) were analyzed for their constituent polypeptides by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. No consistent difference in either the number or relative distributions of the polypeptides was observed for the ...
J W, Shih, J L, Gerin
openaire +2 more sources
Persistence of antibody to hepatitis B surface antigen [PDF]
Journal of Clinical Microbiology, 1976 Sera from military personnel found to have antibodies to hepatitis B surface antigen (anti-HBS) in an epidemiological study of a hepatitis B outbreak were tested for persistence of that antibody 1 year later. Initially, 64% of the anti-HBS-positive sera reacted in passive hemagglutination tests with erythrocytes coated with hepatitis B surface antigen ...
G R, Irwin +5 more
openaire +2 more sources
Atopological Model for Hepatitis B Surface Antigen
Intervirology, 1992 A model of hepatitis B surface antigen has been derived, based on extensive sequence analysis and biochemical data. The surface antigen sequences of the human, woodchuck, ground squirrel and duck hepadnaviruses were examined using hydrophobicity, hydrophobic moments, flexibility and secondary structure prediction.
H J, Stirk, J M, Thornton, C R, Howard
openaire +2 more sources
Immune response to hepatitis B surface antigen [PDF]
Infection and Immunity, 1975 A total of 69 persons were investigated for assessment of cell-mediated and humoral immunity to hepatitis B surface antigen (HBsAg). Three groups, each consisting of 20 normal persons, 20HBsAg carriers, and 20 convalescent hepatitis B patients, were studied for HBsAg, anti-HBs, and leukocyte migration inhibition with purified HBsAg. Sequential sampling
A B, Ibrahim, G N, Vyas, H A, Perkins
openaire +2 more sources
Glycopeptide Composition of Hepatitis B Surface Antigen
Journal of General Virology, 1980 Three major polypeptides of hepatitis B surface antigen (HBsAg), with mol. wt. 22,000 (p22), 27,000 (p27) and 68,000 (p68), were separated by preparative SDS-PAGE. These three peptides as well as intact HBsAg were found to have almost identical amino acid compositions and carbohydrate was detected in p27 and p68 by PAS staining. Papain treatment of p68
H, Shiraishi +3 more
openaire +2 more sources
Hepatitis B surface antigen in hepatocellular carcinoma.
Japanese journal of cancer research : Gann, 1985 Hepatitis B surface antigen (HBs-Ag) was detected histologically (by victoria blue-nuclear fast red staining) in the liver in 20-40% of liver cirrhosis and/or hepatocellular carcinoma (hepatoma) cases. In hepatoma cases, HBs-Ag was usually found in non-cancerous areas of the liver.
TANAKA, Kaoru, MORI, Wataru
openaire +2 more sources
Examination of the Polypeptides of Hepatitis B Surface Antigen
Journal of General Virology, 1976 When the polypeptides of hepatitis B surface antigen were examined by SDS-polyacrylamide gel electrophoresis under a variety of conditions, anomalous results were found to be due to (i) variable and at times incomplete dissociation of polypeptides after boiling with 1% SDS and reducing agent, (ii) reaggregation of solubilized material under certain ...
P, Mackay, C J, Burrell
openaire +2 more sources
Hepatitis B Surface Antigen in Corneal Donors
American Journal of Ophthalmology, 1987 Using an enzyme immunoassay, we detected hepatitis B surface antigen in washings of ocular tissue from two of three corneal donors who had positive serum assays for hepatitis B surface antigen. Hepatitis B surface antigen was identified in emulsified corneal tissue from one of two donors from whom corneal tissue was available for study.
I M, Raber, H M, Friedman
openaire +2 more sources
Carbohydrate Composition of Hepatitis B Surface Antigen
Journal of General Virology, 1977 The content and composition of carbohydrate in hepatitis B surface antigen HBsAg) were clarified by gas chromatography. A value of 75-8 microgram carbohydrate per mg of protein was obtained. The main components were N-acetylglucosamine, mannose, galactose and sialic acid and the minor one was fucose. No N-acetyl-galactosamine was detected.
H, Shiraishi +3 more
openaire +2 more sources
Detecting Hepatitis B Surface Antigen Mutants
Emerging Infectious Diseases, 2006 Hepatitis B viral mutants can emerge in patients as a result of selection pressure from either immune response or treatment options. Mutations that occur within the immunodominant epitopes of hepatitis B surface antigen (HBsAg) allow mutant virus to propagate in the presence of a neutralizing immune response, while wild-type virus is reduced to ...
openaire +3 more sources