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:
May. 31, 1994
Filed:
Jun. 19, 1989
Applicant:
Inventors:
Gene E Kidman, Ubly, MI (US);
Larry E Robinson, Vernon Hills, IL (US);
Mark P Scollar, Mt. Prospect, IL (US);
Ian G Fotheringham, Wheeling, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12P / ;
U.S. Cl.
CPC ...
435280 ; 435106 ; 435108 ; 435110 ; 435116 ; 435115 ;
Abstract
Recombinant cells and an improved method utilizing them is disclosed for the preparation of an optically pure, L-amino acid from its D and D,L isomer forms. The process utilizes cell cultures that possess high aminotransferase activity that exhibits moderate selectivity in the conversion of D and L amino acids to their respective 2-keto acids as well as absolute stereospecificity in the conversion of the 2-keto acids to the L isomer alone.