Granted Patent
B2
US 12,291,734 · App. 18/339,027 · Granted May 6, 2025
Microorganisms and methods for the continuous co-production of high-value, specialized proteins and chemical products from C1-substrates
Inventors:
Sean Dennis Simpson (Evanston, IL); Michael Koepke (Chicago, IL); James Macallister Clomburg (Chicago, IL); Juniper Dee Gramling (Skokie, IL); Stephanie Rhianon Jones (Evanston, IL); Jaeyoung Jung (San Francisco, CA); Timothy James Politano (Chicago, IL); Ryan Christopher Tappel (Skokie, IL)
Assignee:
LanzaTech, Inc.
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Abstract
Microorganisms are genetically engineered to continuously co-produce amino acids, high-value, specialized proteins, microbial biomass, chemicals, or any combination thereof by microbial fermentation, particularly by microbial fermentation of a gaseous substrate. The microorganisms are C1-fixing. The production of ethylene, microbial biomass, and heterologous high-value, specialized proteins can be improved. This can be improved by varying promoters or nutrient limiting means.
Claims (13)
1. A process for continuous co-production of at least one chemical product and at least one exogenous gene product comprising:
a) providing a continuous bioreactor;
b) introducing to the bioreactor a recombinant C1-fixing microorganism selected from Clostridium autoethanogenum and Cupriavidus necator capable of co-producing at least one chemical product and at least one exogenous gene product, a gaseous substrate comprising one or more of CO, CO 2 , and H 2 , and a liquid growth medium;
c) continuously culturing the recombinant C1-fixing microorganism thereby generating a gas fermentation broth comprising 1) the at least one chemical product, 2) the at least one exogenous gene product, and 3) microbial biomass;
d) continuously removing a portion of the gas fermentation broth in a first stream;
e) continuously removing the at least one chemical product in a second stream; and
f) continuously recovering the at least one exogenous gene product from the microbial biomass from the first stream; wherein the at least one exogenous gene product is squid ring teeth (SRT) protein and wherein the at least one chemical product is selected from acetone, ethanol, ethylene, isoprene, and isopropanol.
2. The method of claim 1 , wherein the at least one chemical product is ethylene.
3. The method of claim 1 , further comprising separating the microbial biomass from the first stream before recovering the exogenous gene product.
4. The method of claim 1 , further comprising the recombinant microorganism comprising a disruptive mutation in one or more genes.
5. The method of claim 1 , further comprising the microbial biomass and at least one excipient.
6. The method of claim 1 , wherein the microbial biomass is suitable as animal feed.
7. The method of claim 1 , wherein the at least one heterologous protein is superoxide dismutase and the at least one chemical product is ethylene.
Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 18, 2023
From: SIMPSON, SEAN DENNIS; KOEPKE, MICHAEL; CLOMBURG, JAMES MACALLISTER; GRAMLING, JUNIPER DEE; JONES, STEPHANIE RHIANON; JUNG, JAEYOUNG; POLITANO, TIMOTHY JAMES
To: LANZATECH, INC.
Reel/Frame 064302/0833 →
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Jul 18, 2023
From: TAPPEL, RYAN CHRISTOPHER
To: LANZATECH, INC.
Reel/Frame 064302/0906 →
Continuity (3)
Provisional Application
63366757
· Jun 21, 2022
Provisional Application
63497045
· Apr 19, 2023
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