Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues
Patent
1990-07-03
1992-11-17
Wax, Robert A.
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
424 89, 435 693, 4351723, 530363, 530395, C07K 1300, A61K 3929
Patent
active
051644851
ABSTRACT:
A modified protein (i) derived from a hepatitis B virus surface antigen P31 protein and (ii) having hepatitis B virus surface antigen activity and the ability to bind polymerized human serum albumin, wherein the modification comprises rendering at least one trypsin-like protease sensitive site of the hepatitis B virus surface antigen P31 protein insensitive. The modified protein can be used in the production of a vaccine for prevention of hepatitis B virus infections and as an antigen for diagnosis of hepatitis B virus infections.
REFERENCES:
patent: 4775622 (1988-10-01), Hitzeman
patent: 4935235 (1990-06-01), Rutter
Milich et al. (1985) Science 228, 1195-1199.
Machida et al. (1983) Gastorenterology 85, 268-274.
Osamu Nishimura
Tomoko Fujii
Yasuaki Itoh
Yukio Fujisawa
Baker R. K.
Buckley Linda M.
Conlin David G.
Takeda Chemical Industries Ltd.
Wax Robert A.
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