Chimeric papilloma virus L1 protein
US12139514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Jan 19, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2710/20034
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to chimeric papilloma virus L1 proteins and polynucleotides encoding thereof, and also to HPV virus-like particles and the preparation methods thereof. Said chimeric papilloma virus L1 protein comprises an N-terminal fragment derived from L1 protein of the first papilloma virus type, said N-terminal fragment maintains the immunogenicity of the L1 protein of the corresponding type of HPV; and a C-terminal fragment derived from L1 protein of the second papilloma virus type, said L1 protein of the second papilloma virus type has a better expression level and a better solubility compared to the L1 proteins of other HPV types; wherein said chimeric papilloma virus L1 proteins have the immunogenicity of the L1 proteins of the corresponding HPV types. Said chimeric papilloma virus L proteins have better expression amount and solubility for mass production of vaccines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.