Genes encoding porcine zona pellucida protein PZP-4, expression thereof and contraceptive vaccines comprising expressed (poly) peptides
US5348866A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 20, 1992 |
| Grant date | Sep 20, 1994 |
| Priority date | — |
| Expiry date | Mar 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S530/853
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to a DNA sequence comprising at least part of a porcine zona pellucida PZP-4.alpha. or -4.beta. gene coding for an amino acid sequence represented by SEQ ID NO: 1 or SEQ ID NO: 2, respectively, in SEQUENCE LISTING. This invention also relates to an expression system and to expression of said DNA. In addition, this invention relates to an immunogenic recombinant polypeptide or peptide which comprises at least part of said amino acid sequence and which is obtained by expressing said DNA, and to a contraceptive vaccine for use in human or other animals which comprises said polypeptide or peptide as an active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.