Engineered imine reductases and methods for the reductive amination of ketone and amine compounds
US-9828614-B1 · Nov 28, 2017 · US
US2025137019A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025137019-A1 |
| Application number | US-202418976769-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 11, 2024 |
| Priority date | May 1, 2019 |
| Publication date | May 1, 2025 |
| Grant date | — |
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The present application provides engineered polypeptides having imine reductase activity, polynucleotides encoding the engineered polypeptides, host cells capable of expressing the engineered polypeptides, and methods of using these engineered polypeptides with a range of ketone and amine substrate compounds to prepare secondary and tertiary amine product compounds.
Opening claim text (preview).
What is claimed is: 1 . An engineered polynucleotide sequence encoding at least one engineered polypeptide comprising an amino acid sequence with at least 80%, 85%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99% sequence identity to a reference sequence of SEQ ID NOs:4, 16, 50, 306, 648 and/or 708, or a functional fragment thereof, wherein said engineered polypeptide comprises at least one substitution or substitution set in said polypeptide sequence, and wherein the amino acid positions of said polypeptide sequence are numbered with reference to SEQ ID NO:4, 16, 50, 306, 648 and/or 708. 2 . The engineered polynucleotide sequence of claim 1 , wherein said polynucleotide sequence comprises at least 80%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO:3, 15, 49, 305, 647 and/or 707, wherein the polynucleotide sequence of said polypeptide comprises at least one substitution at one or more positions. 3 . The engineered polynucleotide sequence of claim 2 , wherein said polynucleotide sequence comprises at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or more sequence identity to SEQ ID NO:3, 15, 49, 305, 647 and/or 707. 4 . The engineered polynucleotide sequence of claim 2 , wherein said polynucleotide sequence comprises SEQ ID NO:3, 15, 49, 305, 647 and/or 707. 5 . An engineered polynucleotide comprising any one of the odd-numbered sequences set forth in SEQ ID NO:5 to SEQ ID NO:801. 6 . The engineered polynucleotide of claim 1 encoding an engineered polypeptide having imine reductase activity and comprising an amino acid sequence with at least 90% sequence identity to the amino acid sequence of SEQ ID NO: 4, or a functional fragment of the engineered polypeptide, wherein the tyrosine at the position corresponding to amino acid 222 of SEQ ID NO: 4 is substituted with another amino acid in the sequence of the engineered polypeptide. 7 . The engineered polynucleotide of claim 1 , encoding an engineered polypeptide further comprising at least one substitution or substitution set as compared to the amino acid sequence of SEQ ID NO: 4, wherein the at least one substitution or substitution set is at one or more positions selected from 29/94/184/223/232/288/293, 29/94/184/232/287/288/293/311, 29/94/184/232/287/288/311, 29/94/184/232/287/293/332, 29/94/184/232/288/293/311/324/353, 29/94/184/232/288/311/324/332, 29/94/184/232/293, 29/94/184/232/311, 29/94/184/287/293, 29/94/184/287/293/311/353, 29/94/184/287/311, 29/94/184/288/293/324, 29/94/184/288/293/332/353, 29/94/184/288/298/332, 29/94/184/288/353, 29/94/184/293/311, 29/94/184/324, 29/94/223/232/287, 29/94/223/232/293/311/324, 29/94/223/288/293, 29/94/232/287/288/311, 29/94/232/288/293, 29/94/287/288/293, 29/94/287/288/293/353, 29/94/287/311, 29/94/293/311/324, 29/94/293/332/353, 29/94/311, 29/94/324/353, 29/184, 29/184/223/288/293/324, 29/184/232/288, 29/184/287, 29/184/287/288/293, 29/184/287/288/293/311, 29/184/287/311/332, 29/184/288/293, 29/184/288/293/311, 29/184/293, 29/184/293/311, 29/184/293/324, 29/184/353, 29/223/287/288/293/353, 29/232/287/288/293/332/353, 29/287/288/293, 29/287/288/293/324/353, 29/288/293, 29/311, 29/311/332, 29/353, 72/94/184/288/311, 86, 94/96/223/287/288/293/311/324/332, 94/99/184/293/311/332/353, 94/184/223, 94/184/223/232/287/311, 94/184/223/288/293, 94/184/223/293, 94/184/232/287/288, 94/184/232/287/288/324/332, 94/184/232/287/293, 94/184/232/287/293/332, 94/184/287/288/293, 94/184/287/288/311, 94/184/287/293/311/324/353, 94/184/287/311, 94/184/287/353, 94/184/288/293, 94/184/288/293/311, 94/184/288/293/311/332, 94/184/293, 94/184/293/311, 94/184/293/332/353, 94/223/232/311/353/355/356/357/358/359, 94/223/287/288/293, 94/223/288/293/311, 94/232/287/288/293/353, 94/232/288/293/353, 94/232/293, 94/232/293/324/332, 94/232/311, 94/287/288/293, 94/287/288/311/324, 94/288/293, 94/288/293/324, 94/293/324, 94/311/324, 153, 184/223, 184/223/287/288/353, 184/232/287/288/293/311, 184/232/287/288/324/353, 184/232/287/293/332, 184/287/288, 184/287/288/293, 184/287/288/293/324/353, 184/287/293, 184/287/293/311, 184/288/293/311/324, 184/332/353, 205, 223/232/287/288/332/353, 223/287/288, 223/287/288/293/311, 223/287/311/353, 223/288/293, 232/287/288/293, 232/287/288/293/311, 232/287/288/293/321, 232/287/311, 232/288/293, 232/288/293/332, 234/287/288/293/311, 287/288/293, 287/288/311/324, 287/293, 287/311, 287/311/332, 287/324, 288/293, 288/293/311/324/353, 288/293/324, 293/311, and 311/332. 8 . The engineered polynucleotide of claim 1 encoding an engineered polypeptide comprising an amino acid sequence with at least 90%, sequence identity to the reference sequence of SEQ ID NO: 50, further comprising at least one substitution or substitution set as compared to the amino acid sequence of SEQ ID NO: 4, wherein the at least one substitution or substitution set is at one or more positions selected from 29/57/94/153/184/205/261/265/287, 29/57/94/153/205/265, 29/57/94/184/205/277/353, 29/57/94/205/259/261/265, 29/57/94/205/261/353, 29/57/153/184/205/259/261/265/277, 29/57/153/184/205/353, 29/57/153/205/261/265, 29/57/153/205/261/265/277, 29/57/153/205/265/277, 29/57/153/205/277/353, 29/57/184/205/259/261/265/277/287/357, 29/57/184/205/259/261/265/287, 29/57/205/259/261/265, 29/57/205/259/261/265/287, 29/57/205/261/265/353, 29/94/153/184/205, 29/94/153/205/259/261/265, 29/94/153/205/259/261/287, 29/94/153/205/259/261/287/353, 29/94/184/205/259/261, 29/94/184/205/261, 29/94/205, 29/94/205/259/261/287, 29/94/205/261, 29/94/261/265/287/353, 29/153/184/205, 29/153/205, 29/153/205/259/261/265/277/287, 29/153/261/265/287/353, 29/184/205, 29/184/205/259/261/277, 29/184/205/353, 29/184/261/265, 29/184/265, 29/205, 29/205/259/261, 29/205/259/261/265/287, 29/205/259/261/287, 29/205/261, 29/205/261/265, 29/205/261/265/353, 29/205/261/353, 29/205/277, 29/205/287, 29/205/287/353, 29/259/261/265, 29/261/353, 57/94/153/184/205/259/261, 57/94/153/205/261/265, 57/94/153/259/261/265, 57/94/153/261/265, 57/94/184/205/261/265/287, 57/94/184/261/265/287, 57/94/205/259, 57/94/205/259/261/265/277/287, 57/94/205/261/265, 57/94/205/277, 57/153/205/259/261/265/287, 57/153/205/259/265/277, 57/153/205/261, 57/153/205/261/265, 57/153/205/265, 57/153/261/265, 57/153/261/265/287/353, 57/205, 57/205/259/261, 57/205/259/261/265/277/287/353, 57/205/259/261/287/353, 57/205/259/265, 57/205/261, 57/205/261/265/277/287/353, 57/205/261/277, 57/205/261/277/353, 57/261/265/353, 94/126/184/205/259/261/265, 94/153/184/205, 94/153/184/259/261/265, 94/153/205/259/261/265/353, 94/153/205/287, 94/153/205/287/353, 94/153/205/353, 94/184/205/259/261, 94/184/205/259/261/265/287, 94/184/205/259/261/353, 94/184/205/261/265/287/353, 94/184/353, 94/205, 94/205/259/261/265, 94/205/259/261/265/277/287, 94/205/259/261/265/353, 94/205/259/261/287/353, 94/205/261/265/277, 94/205/261/265/353, 94/205/261/353, 94/205/277, 94/259/261/265, 153/184/205/261/277/287, 153/184/261/265/287, 153/205, 153/205/261, 153/205/261/265/287, 153/259/261/265, 153/259/265/287, 153/261/265, 153/261/265/287/353, 153/265, 153/265/277/287/353, 184/205, 184/205/259/261/287, 184/205/261, 184/205/261/265, 184/205/261/287, 184/205/277, 184/205/287/353, 184/261/265/287, 202, 205, 205/259/261, 205/259/261/265, 205/259/261/265/277/287/353, 205/259/261/277/287, 205/259/265, 205/261, 205/261/265, 205/261/265/274, 205/261/265/287, 205/261/265/287/353, 205/261/277, 205/261/353, 205/277/287, 205/287, 223, 225, 256, 259/261/265, 261/265/287, 265/287, 283, and 294, wherein said positions are numbered with reference to SEQ ID NO: 50. 9 . The engineered polynucleotide of claim 1 encoding an engineered polypeptide comprising an amino acid sequence with at least 90%, sequence identity to the reference sequence of SEQ I
with NAD or NADP as acceptor (1.5.1) · CPC title
Alpha- or beta- amino acids {(other amino acids C12P13/005)} · CPC title
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