Patent · US Expired

Plant amino acid biosynthetic enzymes

US6664445B1 · kind B1 · utility

25Cited by

2References

10Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Saverio Carl Falco · Arden, US
Stephen M. Allen · Chandler, US

Key dates

Filing date	Dec 2, 1999
Grant date	Dec 16, 2003
Priority date	—
Expiry date	Dec 2, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC12N15/8254
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

This invention relates to an isolated nucleic acid fragment encoding a plant enzyme that catalyze steps in the biosynthesis of lysine, threonine, methionine, cysteine and isoleucine from aspartate, the enzyme a member selected from the group consisting of: dihydrodipicolinate reductase, diaminopimelate epimerase, threonine synthase, threonine deaminase and S-adenosylmethionine synthetase. The invention also relates to the construction of a chimeric gene encoding all or a portion of the enzyme, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the enzyme in a transformed host cell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.