Patents by Inventor Rustem Shakulov

Rustem Shakulov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mutant phosphoribosylpyrophosphate synthetase and method for producing L-histidine
    Publication number: 20050176033
    Abstract: The present invention relates to a mutant bacterial PRPP synthetase which is resistant to feedback by purine nucleotides, and a method for producing L-histidine using the bacterium of the Enterobacteriaceae family wherein the L-amino acid productivity of said bacterium is enhanced by use of the PRPP synthetase which is resistant to feedback by purine nucleotides, coded by the mutant prsA gene.
    Type: Application
    Filed: November 10, 2004
    Publication date: August 11, 2005
    Inventors: Elena Klyachko, Rustem Shakulov, Yuri Kozlov
  • Method for producing L-amino acid
    Publication number: 20050106688
    Abstract: An L-amino acid is produced by culturing a bacterium having an ability to produce an L-amino acid in a medium to allow accumulation of the L-amino acid in a culture and by collecting the L-amino acid from the culture, the bacterium being modified so that intracellular ppGpp synthesis ability is increased.
    Type: Application
    Filed: June 8, 2004
    Publication date: May 19, 2005
    Inventors: Akira Imaizumi, Rustem Shakulov, Andrey Briukhanov
  • Method for producing L-histidine using bacteria of Enterobacteriaceae family
    Publication number: 20050048631
    Abstract: A method is provided for producing L-histidine using bacterium of the Enterobacteriaceae family wherein the L-amino acid productivity of said bacterium is enhanced by enhancing an activity of the AICAR transformylase-IMP cyclohydrolase encoded by the purH gene.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 3, 2005
    Inventors: Elena Klyachko, Rustem Shakulov, Yuri Kozlov