Patent application number | Description | Published |
20080233629 | ENZYMES FOR BIOPOLYMER PRODUCTION - In order to optimize the flux or flow of carbon intermediates from normal cellular metabolism into PHAs it is desirable to optimize the expression of the enzymes of the PHA biosynthetic pathway. Gene fusions are genetic constructs where two open reading frames have been fused into one and encode hybrid proteins and in some cases bifunctional hybrid enzymes. Linkers may be added to spatially separate the two domains of the hybrid protein. In the case of enzymes which catalyse successive reactions in a pathway, the fusion of two genes results in bringing two enzymatic activities into close proximity to each other. When the product of the first reaction is a substrate for the second one, this new configuration of active sites may result in a faster transfer of the product of the first reaction to the second active site with a potential for increasing the flux through the pathway. | 09-25-2008 |
20080248539 | COMPOSITIONS AND METHODS FOR PRODUCING STEREOISOMERICALLY PURE STATINS AND SYNTHETIC INTERMEDIATES THEREFOR - The present disclosure provides ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, method of using the engineered ketoreductase enzymes to synthesize a variety of chirally pure compounds, and the chirally pure compounds prepared therewith. | 10-09-2008 |
20080318295 | Ketoreductases and Uses Thereof - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 12-25-2008 |
20090093031 | Ketoreductase Polypeptides for the Production of (R)-3-Hydroxythiolane - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize chiral compounds. | 04-09-2009 |
20090118130 | Structure-activity relationships - The present disclosure relates to compositions and methods for screening a plurality of polypeptide variants. | 05-07-2009 |
20090155863 | KETOREDUCTASE POLYPEPTIDES AND USES THEREOF - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 06-18-2009 |
20090191605 | Ketoreductase Polypeptides for the Reduction of Acetophenones - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 07-30-2009 |
20090298125 | HALOHYDRIN DEHALOGENASES AND RELATED POLYNUCLEOTIDES - The present invention relates to novel halohydrin dehalogenase polypeptides and the polynucleotides that encode them. These polypeptides are useful in the production of 4-substituted-3-butyric acid derivatives and vicinal cyano, hydroxyl substituted carboxylic acid esters. The invention also provides related vectors, host cells and methods. | 12-03-2009 |
20100028972 | KETOREDUCTASE POLYPEPTIDES AND RELATED POLYNUCLEOTIDES - The present invention is directed to variant polypeptides having enhanced ketoreductase activity and/or thermostability for use in the stereospecific reduction of ketones. In addition, the present invention is directed to polynucleotides that encode the ketoreductase polypeptides, including codon optimized versions of the polynucleotides which provide for enhanced expression in host cells. In another aspect, the present invention is directed to nucleotide constructs, vectors and host cells that are transformed with polynucleotides of the present invention. | 02-04-2010 |
20100093043 | Biological Systems for Manufacture of Polyhydroxyalkanoate Polymers Containing 4-Hydroxyacids - The gene encoding a 4-hydroxybutyryl-Co A transferase has been isolated from bacteria and integrated into the genome of bacteria also expressing a polyhydroxyalkanoate synthase, to yield an improved production process for 4HB-containing polyhydroxyalkanoates using transgenic organisms, including both bacteria and plants. The new pathways provide means for producing 4HB containing PHAs from cheap carbon sources such as sugars and fatty acids, in high yields, which are stable. Useful strains are obtaining by screening strains having integrated into their genomes a gene encoding a 4HB-CoA transferase and/or PHA synthase, for polymer production. Processes for polymer production use recombinant systems that can utilize cheap substrates. Systems are provided which can utilize amino acid degradation pathways, α-ketoglutarate, or succinate as substrate. | 04-15-2010 |
20100167345 | HALOHYDRIN DEHALOGENASES AND RELATED POLYNUCLEOTIDES - The present invention relates to novel halohydrin dehalogenase polypeptides and the polynucleotides that encode them. These polypeptides are useful in the production of 4-substituted-3-butyric acid derivatives and vicinal cyano, hydroxyl substituted carboxylic acid esters. The invention also provides related vectors, host cells and methods. | 07-01-2010 |
20100267016 | TRANSGENIC MICROBIAL POLYHYDROXYALKANOATE PRODUCERS - Transgenic microbial strains are provided which contain the genes required for PHA formation integrated on the chromosome. The strains are advantageous in PHA production processes, because (1) no plasmids need to be maintained, generally obviating the required use of antibiotics or other stabilizing pressures, and (2) no plasmid loss occurs, thereby stabilizing the number of gene copies per cell throughout the fermentation process, resulting in homogeneous PHA product formation throughout the production process. Genes are integrated using standard techniques, preferably transposon mutagenesis. In a preferred embodiment wherein multiple genes are incorporated, these are incorporated as an operon. Sequences are used to stabilize mRNA, to induce expression as a function of culture conditions (such as phosphate concentration), temperature, and stress, and to aid in selection, through the incorporation of selection markers such as markers conferring antibiotic resistance. | 10-21-2010 |
20100311131 | TRANSGENIC SYSTEMS FOR THE MANUFACTURE OF POLY(2-HYDROXY-BUTYRATE-CO-3-HYDROXYHEXANOATE) - Methods for engineering transgenic organisms that synthesize polyhydroxyalkanoates (PHAs) containing 3-hydroxyhexanoate as comonomer have been developed. These processes are based on genetically engineered bacteria such as | 12-09-2010 |
20110008856 | Biological Systems for Manufacture of Polyhydroxyalkanoate Polymers Containing 4-Hydroxyacids - The gene encoding a 4-hydroxybutyryl-Co A transferase has been isolated from bacteria and integrated into the genome of bacteria also expressing a polyhydroxyalkanoate synthase, to yield an improved production process for 4HB-containing polyhydroxyalkanoates using transgenic organisms, including both bacteria and plants. The new pathways provide means for producing 4HB containing PHAs from cheap carbon sources such as sugars and fatty acids, in high yields, which are stable. Useful strains are obtaining by screening strains having integrated into their genomes a gene encoding a 4HB-CoA transferase and/or PHA synthase, for polymer production. Processes for polymer production use recombinant systems that can utilize cheap substrates. Systems are provided which can utilize amino acid degradation pathways, α-ketoglutarate, or succinate as substrate. | 01-13-2011 |
20110165670 | Ketoreductases and Uses Thereof - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 07-07-2011 |
20110195465 | Compositions and Methods for Producing Stereoisomerically Pure Statins and Synthetic Intermediates Therefor - The present disclosure provides ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, method of using the engineered ketoreductase enzymes to synthesize a variety of chirally pure compounds, and the chirally pure compounds prepared therewith. | 08-11-2011 |
20110217754 | KETOREDUCTASE POLYPEPTIDES FOR THE PRODUCTION OF (R)-3-HYDROXYTHIOLANE - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize chiral compounds. | 09-08-2011 |
20120178142 | Ketoreductases and Uses Thereof - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 07-12-2012 |
20120208259 | Halohydrin Dehalogenases and Related Polynucleotides - The present invention relates to novel halohydrin dehalogenase polypeptides and the polynucleotides that encode them. These polypeptides are useful in the production of 4-substituted-3-butyric acid derivatives and vicinal cyano, hydroxyl substituted carboxylic acid esters. The invention also provides related vectors, host cells and methods. | 08-16-2012 |
20120276599 | KETOREDUCTASE POLYPEPTIDES FOR THE PRODUCTION OF (R)-3-HYDROXYTHIOLANE - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize chiral compounds. | 11-01-2012 |
20130078692 | KETOREDUCTASE POLYPEPTIDES FOR THE REDUCTION OF ACETOPHENONES - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 03-28-2013 |
20130157900 | STRUCTURE-ACTIVITY RELATIONSHIPS - The present disclosure relates to compositions and methods for screening a plurality of polypeptide variants. | 06-20-2013 |
20130165341 | STRUCTURE-ACTIVITY RELATIONSHIPS - The present disclosure relates to compositions and methods for screening a plurality of polypeptide variants. | 06-27-2013 |
20130177962 | KETOREDUCTASE POLYPEPTIDES FOR THE PRODUCTION OF A 3-ARYL-3 HYDROXYPROPANAMINE FROM A 3-ARYL-3-KETOPROPANAMINE - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. The engineered ketoreductase polypeptides are optimized for catalyzing the conversion of N,N-dimethyl-3-keto-3-(2-thienyl)-1-ketopropanamine to (S)—N,N-dimethyl-3-hydroxy-3-(2-thienyl)-1-propanamine. | 07-11-2013 |
20130196408 | KETOREDUCTASES AND USES THEREOF - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 08-01-2013 |
20130344552 | KETOREDUCTASE POLYPEPTIDES FOR THE REDUCTION OF ACETOPHENONES - The present disclosure provides engineered ketoreductase enzymes having improved properties as compared to a naturally occurring wild-type ketoreductase enzyme. Also provided are polynucleotides encoding the engineered ketoreductase enzymes, host cells capable of expressing the engineered ketoreductase enzymes, and methods of using the engineered ketoreductase enzymes to synthesize a variety of chiral compounds. | 12-26-2013 |