DNA encoding pasteurella haemolytica PhaI restriction endonuclease and methyltransterase
US5693777A · kind A · utility
1Cited by
16References
2Claims
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Key dates
| Filing date | May 8, 1996 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/74
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Methylation of DNA can be a critical step in the introduction of DNA into P. haemolytica. A methyltransferase has been isolated and molecularly cloned for this purpose. Use of the methyltransferase has allowed construction of defined, attenuated mutants for use as vaccines to protect cattle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.