Patent · US Expired

Glyphosate-tolerant 5-enolpyruvylshikimate-3-phosphate synthases

US6248876A · kind A · utility

202Cited by
10References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 1998
Grant dateJun 19, 2001
Priority date
Expiry dateAug 20, 2018

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/143333
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

Genes encoding Class II EPSPS enzymes are disclosed. The genes are useful in producing transformed bacteria and plants which are tolerant to glyphosate herbicide. Class II EPSPS genes share little homology with known, Class I EPSPS genes, and do not hybridize to probes from Class I EPSPS's. The Class II EPSPS enzymes are characterized by being more kinetically efficient than Class I EPSPS's in the presence of glyphosate. Plants transformed with Class II EPSPS genes are also disclosed as well as a method for selectively controlling weeds in a planted transgenic crop field.

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