The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 28, 2015
Filed:
Jun. 30, 2009
James H. Crowley, Manchester, MO (US);
Barry S. Goldman, St. Louis, MO (US);
Jintai Huang, Chesterfield, MO (US);
Qungang Qi, Chesterfield, MO (US);
William D. Rapp, Wildwood, MO (US);
James H. Crowley, Manchester, MO (US);
Barry S. Goldman, St. Louis, MO (US);
Jintai Huang, Chesterfield, MO (US);
Qungang Qi, Chesterfield, MO (US);
William D. Rapp, Wildwood, MO (US);
Monsanto Technology LLC, St. Louis, MO (US);
Abstract
Threonine is an essential amino acid for humans and in the animal feed industry where its levels in feed rations can significantly impact the cost of production of important meat sources, such as swine and poultry. Threonine as well as essential amino acids lysine and methionine are all synthesized via the aspartate family pathway. Aspartate kinase (AK) is the first enzyme in the pathway, and catalyzes the ATP-dependent phosphorylation of aspartate to form β-aspartyl phosphate. AK constitutes the main regulatory step controlling the metabolic flux through the pathway, and is subject to end product inhibition by Lys and/or Thr. The current invention provides a method to produce a transgenic high free threonine soybean via the overexpression of feedback-resistant AK enzymes in developing soybean plants and seeds. These modifications provide a method to enhance both plant nitrogen metabolism and crop growth performance.