Methods for producing members of specific binding pairs
US7063943B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1998 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Nov 20, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N15/1037
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A member of a specific binding pair (sbp) is identified by expressing DNA encoding a genetically diverse population of such sbp members in recombinant host cells in which the sbp members are displayed in functional form at the surface of a secreted recombinant genetic display package (rgdp) containing DNA encoding the sbp member or a polypeptide component thereof, by virtue of the sbp member or a polypeptide component thereof being expressed as a fusion with a capsid component of the rgdp. The displayed sbps may be selected by affinity with a complementary sbp member, and the DNA recovered from selected rgdps for expression of the selected sbp members. Antibody sbp members may be thus obtained, with the different chains thereof expressed, one fused to the capsid component and the other in free form for association with the fusion partner polypeptide. A phagemid may be used as an expression vector, with said capsid fusion helping to package the phagemid DNA. Using this method libraries of DNA encoding respective chains of such multimeric sbp members may be combined, thereby obtaining a much greater genetic diversity in the sbp members than could easily be obtained by conventional me…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.