The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Apr. 30, 2001
Applicant:
Inventors:
Chong Jin Oon, Singapore, SG;
Gek Keow Lim, Singapore, SG;
Yi Zhao, Singapore, SG;
Wei Ning Chen, Singapore, SG;
Assignee:
Government of Republic of Singapore, Singapore, SG;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3/912 ; A61K 3/929 ;
U.S. Cl.
CPC ...
A61K 3/912 ; A61K 3/929 ;
Abstract
An isolated strain of Hepatitis B virus designated Human Hepatitis B Virus Surface Antigen-'S'-133 Oon Strain (Methionine to Threonine) of Cell. Also, an isolated nucleic acid encoding a polypeptide which is a mutant major surface antigen of a strain of hepatitis B virus, such polypeptide having an amino acid sequence which differs from the amino acid sequence of a major surface antigen of a wild type hepatitis B virus in that the amino acid at position number 133 of such polypeptide is a threonine rather than methionine.