Patents by Inventor Tatyana Yampolskaya

Tatyana Yampolskaya 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).

  • Carbamoylphosphate synthetase and method for producing compounds derived from carbamoylphosphate
    Publication number: 20060035343
    Abstract: L-arginine, citrulline and pyrimidine derivatives including orotic acid, uridine, uridine 5?-monophosphate (UMP), cytidine and cytidine. 5?-monophosphate (CMP) are produced using a bacterium belonging to the genus Escherichia harboring a mutant carbamoylphosphate synthetase in which the amino acid sequence corresponding to positions from 947 to 951 in a wild type carbamoylphosphate synthetase is replaced with any one of amino acid sequences of SEQ ID NOS: 1 to 9, and feedback inhibition by uridine 5?-monophosphate in the bacterium is desensitized.
    Type: Application
    Filed: October 20, 2005
    Publication date: February 16, 2006
    Applicant: AJINOMOTO CO., INC
    Inventors: Leonid Ptitsyn, Sergey Smirnov, Irina Altman, Anna Novikova, Veronika Kotliarova, Mikhail Gusyatiner, Yulia Rostova, Tatyana Yampolskaya
  • L-arginine producing Escherichia coli and method of producing L-arginine
    Publication number: 20050026259
    Abstract: Arginine can be efficiently produced by cultivating Escherichia coli which has an ability to produce arginine and an ability to utilize acetate in a culture medium to produce and accumulate arginine in the medium, and collecting arginine from the medium.
    Type: Application
    Filed: August 25, 2004
    Publication date: February 3, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Mikhail Gusyatiner, Tatyana Leonova, Leonid Ptitsyn, Tatyana Yampolskaya
  • Mutant N-acetylglutamate synthase and method for L-arginine production
    Publication number: 20050026258
    Abstract: L-arginine is produced using a bacterium belonging to the genus Escherichia harboring a mutant N-acetylglutamate synthase in which the amino acid sequence corresponding to positions from 15 to 19 in a wild type N-acetylglutamate synthase is replaced with any one of amino acid sequences of SEQ ID NOS: 1 to 4, and feedback inhibition by L-arginine is desensitized.
    Type: Application
    Filed: July 15, 2004
    Publication date: February 3, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Leonid Ptitsyn, Irina Altman, Sergey Smirnov, Yulia Rostova, Tatyana Yampolskaya, Tatyana Leonova, Mikhail Gusyatiner