| Literature DB >> 4118259 |
G N Vyas, K R Rao, A B Ibrahim.
Abstract
Reduction and alkylation of purified hepatitis-associated Australia antigen (hepatitis B antigen) resulted in a total loss of serologic activity. The reduced and alkylated protein formed a single band with a sedimentation coefficient of 31S on analytical ultracentrifugation, and no subunits were detected by Sephadex gel filtration. Although this preparation induced a delayed hypersensitivity response when injected into guinea pigs, it failed to stimulate humoral antibody formation. The data suggest that hepatitis B antigen is a conformational antigen critically dependent upon the disulfide bonds of the protein moiety.Entities:
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Year: 1972 PMID: 4118259 DOI: 10.1126/science.178.4067.1300
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728