Method of making polyethylene glycol-modified mammalian erythropoietin in a transgenic chicken
US9974288B2 · kind B2 · utility
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5References
9Claims
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Key dates
| Filing date | Jul 12, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2830/008
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides to a polyethylene glycol-modified feline-derived protein which is obtained by chemically modifying a feline-derived protein with polyethylene glycol. The feline-derived protein is produced by a method comprising any or a combination of extracting the protein from somatic cells of a transgenic bird and/or an egg laid thereby, purifying and activating the same. The transgenic bird has a foreign gene containing a sequence encoding a feline-derived protein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.