IP Library Granted Patent US 8,268,607
Granted Patent B2
US 8,268,607 · App. 12/950,954 · Granted Sep 18, 2012

Methods and organisms for converting synthesis gas or other gaseous carbon sources and methanol to 1,3-butanediol

Assignee: Genomatica, Inc.
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Quick Facts
Patent No.
US 8,268,607
App. No.
12/950,954
Granted
Sep 18, 2012
Kind
B2
Abstract

A non-naturally occurring microbial organism having a 1,3-butanediol (1,3-BDO) pathway includes at least one exogenous nucleic acid encoding a 1,3-BDO pathway enzyme or protein expressed in a sufficient amount to produce 1,3-BDO. A method for producing 1,3-BDO that includes culturing the this non-naturally occurring microbial organism under conditions and for a sufficient period of time to produce 1,3-BDO.

Claims (24)

1. A non-naturally occurring microbial organism, having a 1,3-butanediol (1,3-BDO) pathway, wherein said microbial organism comprises an exogenous nucleic acid encoding each of the following a 1,3-BDO pathway enzymes or proteins expressed in a sufficient amount to produce 1,3-BDO:

1) formate dehydrogenase that catalyzes the incorporation of CO2 into formate;

2) formyltetrahydrofolate synthetase that ligates formate to tetrahydrofolate to form 10-formyltetrahydro folate;

3) methenyltetrahydrofolate cyclohydrolase that converts 10-formyltetrahydrofolate to methyltetrahydrofolate;

4) methylenetetrahydrofolate dehydrogenase that converts methyltetrahydrofolate to methenyltetrahydrofolate;

5) methylenetetrahydrofolate reductase that converts metheneyltetrahydrofolate to 5-methyltetrahydrofolate;

6) methyltetrahydrofolate:corrinoid protein methyltransferase that catalyzes the transfer of a methyl group from 5-methyltetrahydrofolate to corrinoid iron sulfur protein;

7) corrinoid iron-sulfur protein;

8) nickel-protein assembly protein;

9) ferredoxin;

10) acetyl-CoA synthase that catalyzes the condensation of the methylated corrinoid iron sulfur protein, carbon monoxide and coenzyme A, yielding acetyl-CoA;

11) carbon monoxide dehydrogenase that converts CO and water to CO2 while passing the electrons to a reduced acceptor;

12) hydrogenase that transfers electrons from H2 to an acceptor;

13) acetoacetyl-CoA thiolase that converts acetyl-CoA to acetoacetyl-CoA;

14) acetoacetyl-CoA reductase (ketone reducing) that converts acetoacetyl-CoA to 3-hydroxybutyryl-CoA;

15) 3-hydroxybutyryl-CoA reductase (aldehyde forming) that converts 3-hydroxybutyryl-CoA to 3-hydroxybutyraldehyde; and

16) 3-hydroxybutyraldehyde reductase that converts 3-hydroxybutyraldehyde to 1,3-BDO.

2. The non-naturally occurring microbial organism of claim 1 , wherein said microbial organism uses a carbon feedstock selected from 1) CO, 2) CO 2 and H 2 , 3) CO, CO 2 , and H 2 , 4) synthesis gas comprising CO and H 2 , 5) synthesis gas comprising CO, CO 2 , and H 2 , and 6) one or more carbohydrates.

3. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is CO.

4. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is CO 2 and H 2 .

5. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is CO, CO 2 , and H 2 .

6. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is synthesis gas comprising CO and H 2 .

7. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is synthesis gas comprising CO, CO 2 , and H 2 .

8. The non-naturally occurring microbial organism of 2 , wherein the carbon feedstock is one or more carbohydrates.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 1, 2011
From: BURGARD, ANTHONY P.; BURK, MARK J.; PHARKYA, PRITI
To: GENOMATICA, INC.
Reel/Frame 025877/0860 →
Continuity (2)
Provisional Application 61285312 · Dec 10, 2009
Related Publication 20110129904A1 · Jun 2, 2011