Methods for lyophilizing competent cells
US6960464B2 · kind B2 · utility
62Cited by
25References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Nov 1, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/849
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a method for producing cells which are competent for transformation and which may be stably stored for extended periods of time at various temperatures. The method involves growing cells in a growth conducive medium, rendering said cells competent, and lyophilizing said competent cells. The invention further relates to competent cells produced by such a method, to methods of transforming said cells with a DNA molecule, and to a method of producing a desired protein or polypeptide from said transformed cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.