IP Library › Granted Patent US 12,297,462
Granted Patent B2
US 12,297,462 · App. 17/742,560 · Granted May 13, 2025

Engineered transaminase polypeptides for industrial biocatalysis

Inventors: Scott J. Novick (Palo Alto, CA); Nikki Dellas (San Carlos, CA); Oscar Alvizo (Fremont, CA); Ravi David Garcia (Los Gatos, CA); Charlene Ching (San Jose, CA); David Entwistle (San Carlos, CA)
Assignee: Codexis, Inc.
C12N9/1096C12Y206/01
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Quick Facts
Patent No.
US 12,297,462
App. No.
17/742,560
Granted
May 13, 2025
Kind
B2
Abstract

The present invention provides engineered transaminase polypeptides useful for the synthesis of chiral amine compounds under industrially relevant conditions. The invention also provides polynucleotides encoding the engineered transaminase polypeptides, host cells capable of expressing the engineered transaminases, and methods of using the engineered transaminases for the production of chiral amine compounds.

Claims (14)

1. A polynucleotide encoding an engineered transaminase comprising a polypeptide sequence having at least 93% sequence identity to SEQ ID NO: 4, wherein said engineered transaminase comprises amino acid substitutions in said polypeptide sequence at positions 85 and 422, wherein the amino acid substitution at position 422 is V422C, V422G, or V422A, and the amino acid substitution at position 85 is F85V, wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO: 4, and wherein said engineered transaminase exhibits greater enzymatic activity and greater stereoselectivity toward the(S) amine diastereomer than the transaminase of SEQ ID NO: 4.

2. The polynucleotide of claim 1 , wherein said engineered transaminase comprises at least one improved property compared to wild-type V. fluvialis transaminase.

3. The polynucleotide of claim 2 , wherein said improved property comprises improved activity on a substrate.

4. The polynucleotide of claim 3 , wherein said substrate comprises compound (1)

5. The polynucleotide of claim 2 , wherein said improved property comprises improved thermostability.

6. The polynucleotide of claim 1 , wherein said polynucleotide comprises a sequence having at least 94% or more sequence identity to SEQ ID NO: 23, 29, 47, 65, 69, 87, 109, 111, 119, 137 or 155.

7. The polynucleotide sequence of claim 1 , wherein said polynucleotide sequence is operably linked to a control sequence.

8. The polynucleotide sequence of claim 1 , wherein said polynucleotide sequence is codon optimized.

9. An expression vector comprising the polynucleotide of claim 1 .

10. A host cell comprising the expression vector of claim 9 .

11. A host cell comprising the polynucleotide of claim 1 .

12. A method of producing an engineered transaminase in a host cell, comprising culturing the host cell of claim 10 , under suitable conditions, such that at least one engineered transaminase is produced.

13. The method of claim 12 , further comprising recovering at least one engineered transaminase from the culture and/or host cell.

14. The method of claim 13 , further comprising the step of purifying said at least one engineered transaminase.

Assignments (2)
SECURITY INTEREST Recorded Feb 15, 2024
From: CODEXIS, INC.
To: INNOVATUS LIFE SCIENCES LENDING FUND I, LP, AS COLLATERAL AGENT
Reel/Frame 066600/0650 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2024
From: NOVICK, SCOTT J.; DELLAS, NIKKI; ALVIZO, OSCAR; GARCIA, RAVI DAVID; CHING, CHARLENE; ENTWISTLE, DAVID
To: CODEXIS, INC.
Reel/Frame 066417/0420 →
Continuity (3)
Division 16615999
Provisional Application 62519297 · Jun 14, 2017
Related Publication 20220282229A1 · Sep 8, 2022
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