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1. US20200325499 - Methods And Microorganisms For The Production Of 1,3-Butanediol

Office United States of America
Application Number 16825316
Application Date 20.03.2020
Publication Number 20200325499
Publication Date 15.10.2020
Publication Kind A1
IPC
C12P 7/18
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
02containing a hydroxy group
04acyclic
18polyhydric
C12N 9/88
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
88Lyases (4.)
C12N 15/52
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12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
C12N 9/04
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9Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes
02Oxidoreductases (1.), e.g. luciferase
04acting on CHOH groups as donors, e.g. glucose oxidase, lactate dehydrogenase (1.1)
C12P 7/24
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12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
24containing a carbonyl group
CPC
C12N 9/88
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
9Enzymes; Proenzymes; Compositions thereof
88Lyases (4.)
C12P 7/18
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
02containing a hydroxy group
04acyclic
18polyhydric
C12N 15/52
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09Recombinant DNA-technology
11DNA or RNA fragments; Modified forms thereof
52Genes encoding for enzymes or proenzymes
C12Y 401/02004
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12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
YENZYMES
401Carbon-carbon lyases (4.1)
02Aldehyde-lyases (4.1.2)
02004Deoxyribose-phosphate aldolase (4.1.2.4)
C12P 7/24
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
24containing a carbonyl group
C12Y 101/01001
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
YENZYMES
101Oxidoreductases acting on the CH-OH group of donors (1.1)
01with NAD+ or NADP+ as acceptor (1.1.1)
01001Alcohol dehydrogenase (1.1.1.1)
Applicants THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
Inventors Radhakrishnan Mahadevan
Alexander Yakunin
Pratish Gawand
Kayla Nemr
Title
(EN) Methods And Microorganisms For The Production Of 1,3-Butanediol
Abstract
(EN)

A non-naturally occurring microorganism having a 1,3-BDO pathway is provided. The microorganism expresses at least one of the following 1,3-BDO pathway enzymes: an aldolase that catalyzes condensation of two acetaldehydes to produce 3-hydroxybutanal; and an aldo-ketoreductase, oxidoreductase, aldehyde reductase or alcohol dehydrogenase that reduces 3-hydroxybutanal to 1,3-BDO. The organism may further express one or more enzymes for producing acetaldehyde. A biosynthetic process involves condensing two acetaldehyde molecules to 3-hydroxybutanal using an enzyme from class aldolases; and selectively reducing 3-hydroxybutanal to 1,3-BDO using an enzyme belonging to the class aldo-ketoreductase, oxidoreductase, aldehyde reductase or alcohol dehydrogenase. The process can further include producing acetaldehyde by a biosynthetic method.