KR101751967B1 - 부산물의 생성이 감소된 이소루이신 생산능 변이 균주 - Google Patents
부산물의 생성이 감소된 이소루이신 생산능 변이 균주 Download PDFInfo
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- KR101751967B1 KR101751967B1 KR1020150151352A KR20150151352A KR101751967B1 KR 101751967 B1 KR101751967 B1 KR 101751967B1 KR 1020150151352 A KR1020150151352 A KR 1020150151352A KR 20150151352 A KR20150151352 A KR 20150151352A KR 101751967 B1 KR101751967 B1 KR 101751967B1
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- isoleucine
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Classifications
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- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
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- C12N15/70—Vectors or expression systems specially adapted for E. coli
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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- C—CHEMISTRY; METALLURGY
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Abstract
Description
프라이머 | 염기서열 (5’-3’) |
leuB_HF1 | CAGCCATTACGATGTAGGCG |
leuB_HR1 | CAATGTCTGCACGCAGCGG |
leuB_PF | CCGCTGCGTGCAGACATTGGTGTAGGCTGGAGCTGCTTC |
leuB_PR | AGTGATCATTGCGCACTCGTCCTGTCAAACATGAGAATTAA |
leuB_HF2 | GACGAGTGCGCAATGATCACT |
leuB_HR2 | CGCATCATCGGCATCCAGG |
leuB-CF | GCTGGATGCCGTGCGCA |
leuB_CR | GCCACGGGCTAAATCCCC |
성분 | 농도 | 추가배지농도 |
포도당 | 8% | 55% |
옥수수침지액 | 2% | - |
황산암모늄 | 2% | 0.1 % |
인산 | 1.5 % | 0.1 % |
푸마르산 | 0.1% | - |
글루탐산나트륨 | 0.7% | - |
구연산 나트륨 | 0.1 % | - |
콜린-HCl | 0.1% | - |
피리독신-HCl | 10 ppm | - |
티아민-HCl | 5 ppm | - |
니코틴산 | 5 ppm | - |
비오틴 | 5 ppm | - |
염화칼슘 | 5 ppm | - |
염화코발트 | 5 ppm | - |
황산철 | 20 ppm | - |
황산망간 | 5 ppm | - |
황산아연 | 5 ppm | - |
황산구리 | 5 ppm | - |
L-루이신 | 0.08% | - |
수산화나트륨 | 1 % | - |
균주명 | 이소루이신(%) | 발린(%) | V/I 비율 (%) | α-아미노부티릭산(%) | AB/I 비율(%) | 노르발린(%) | NV/I 비율 (%) |
DS44 | 2.21 | 0.31 | 14 | 0.122 | 5.5 | 0.048 | 2.17 |
DS44△leuB | 2.54 | 0.33 | 13 | 0.110 | 4.3 | 0 | 0 |
프라이머 | 염기서열 (5’-3’) |
leuB_PF | CCGCTGCGTGCAGACATTGGTGTAGGCTGGAGCTGCTTC |
leuB_PR2 | GCGATTTTTTTTGATATTGATTTCTGTCAAACATGAGAATTAA |
leuA_pro_F | AAATCAATATCAAAAAAAATCGC |
leuA_pro_R | TAAATCAGCTCCAGATGAATGCG |
leuA_F | ATTCATCTGGAGCTGATTTAATGAGCCAGCAAGTCATTAT |
leuA_R | AGTGATCATTGCGCACTCGTCTCACACGGTTTCCTTGTTGTTTTC |
leuB_HF1 | CAGCCATTACGATGTAGGCG |
leuB_HR1 | CAATGTCTGCACGCAGCGG |
leuB_HF2 | GACGAGTGCGCAATGATCACT |
leuB_HR2 | CGCATCATCGGCATCCAGG |
leuB-CF | GCTGGATGCCGTGCGCA |
leuB_CR | GCCACGGGCTAAATCCCC |
균주명 | 이소루이신(%) | 발린(%) | V/I 비율 (%) | α-아미노부티릭산(%) | AB/I 비율(%) | 노르발린(%) | NV/I 비율 (%) |
DS44 | 2.17 | 0.29 | 13.5 | 0.126 | 5.4 | 0.054 | 2.50 |
DS44△leuB::leuA | 3.14 | 0.14 | 4.4 | 0.063 | 2.0 | 0 | 0 |
Claims (11)
- 불활성화 3-이소프로필말레이트 탈수소효소(3-isopropylmalate dehydrogenase)를 포함하며 노르발린(norvaline)은 생성하지 않고, α-이소프로필말레이트 합성효소(α-isopropylmalate synthase)가 과발현된, 이소루이신(isoleucine) 생산능 에스케리치아 속 (Escherichia genus) 변이 균주.
- 제 1 항에 있어서, 상기 3-이소프로필말레이트 탈수소효소의 불활성화는 leuB 유전자를 코딩하는 뉴클레오타이드 서열의 치환, 삽입, 결실 또는 이들의 조합에 의한 불활성화인 것을 특징으로 하는 변이 균주.
- 삭제
- 제 1 항에 있어서, 상기 균주는 에스케리치아 콜라이(Escherichia coli), 에스케리치아 알베르티(Escherichia albertii), 에스케리치아 블라태(Escherichia blattae), 에스케리치아 퍼구소니(Escherichia fergusonii), 에스케리치아 헤라니(Escherichia hermannii) 또는 에스케리치아 불네리스 (Escherichia vulneris) 균주인 것을 특징으로 하는 균주.
- 제 1 항에 있어서, 상기 불활성화 3-이소프로필말레이트 탈수소효소를 포함하는 이소루이신 생산능 변이 균주는 야생형 또는 활성화 3-이소프로필말레이트 탈수소효소를 포함하는 이소루이신 생산능 균주와 비교하여 이소루이신의 생산능이 3-30% 증가된 균주 것을 특징으로 하는 변이 균주.
- 삭제
- 제 1 항에 있어서, 상기 α-이소프로필말레이트 합성효소는 서열목록 제2서열의 뉴클레오타이드 서열에 의해 코딩되는 것을 특징으로 하는 변이 균주.
- 제 1 항에 있어서, 상기 변이 균주는 야생형 또는 활성화 3-이소프로필말레이트 탈수소효소 및 야생형 α-이소프로필말레이트 합성효소를 포함하는 이소루이신 생산능 균주와 비교하여 이소루이신의 생산능이 30-60% 증가된 균주 것을 특징으로 하는 변이 균주.
- 제 1 항에 있어서, 상기 변이 균주는 야생형 또는 활성화 3-이소프로필말레이트 탈수소효소 및 야생형 α-이소프로필말레이트 합성효소를 포함하는 이소루이신 생산능 균주와 비교하여 발린(valine) 및 α-아미노부티릭산(α-aminobutyric acid)의 생산능이 30-70% 감소된 균주 것을 특징으로 하는 변이 균주.
- 3-이소프로필말레이트 탈수소효소(3-isopropylmalate dehydrogenase)를 불활성화 시키는 단계; 및 α-이소프로필말레이트 합성효소를 과발현 시키는 단계;를 포함하는 노르발린(norvaline)을 생성하지 않는 이소루이신(isoleucine) 생산능 에스케리치아 속 (Escherichia genus) 변이 균주의 제조방법.
- 삭제
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2022124708A1 (ko) * | 2020-12-11 | 2022-06-16 | 씨제이제일제당 (주) | 신규한 분지 연쇄 아미노산 아미노트렌스퍼라아제 변이체 및 이를 이용한 이소류신 생산 방법 |
WO2022124786A1 (ko) * | 2020-12-11 | 2022-06-16 | 씨제이제일제당 (주) | 신규한 감마-아미노부티르산 퍼미에이즈 변이체 및 이를 이용한 이소류신 생산 방법 |
WO2023121055A1 (ko) * | 2021-12-21 | 2023-06-29 | 씨제이제일제당 (주) | L-이소루신 생산 미생물 및 이를 이용한 l-이소루신 생산 방법 |
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WO2022124708A1 (ko) * | 2020-12-11 | 2022-06-16 | 씨제이제일제당 (주) | 신규한 분지 연쇄 아미노산 아미노트렌스퍼라아제 변이체 및 이를 이용한 이소류신 생산 방법 |
WO2022124786A1 (ko) * | 2020-12-11 | 2022-06-16 | 씨제이제일제당 (주) | 신규한 감마-아미노부티르산 퍼미에이즈 변이체 및 이를 이용한 이소류신 생산 방법 |
EP4245850A1 (en) * | 2020-12-11 | 2023-09-20 | CJ Cheiljedang Corporation | Novel gamma-aminobutyrate permease variant and method for producing isoleucine by using same |
EP4245849A4 (en) * | 2020-12-11 | 2024-04-03 | CJ Cheiljedang Corporation | NOVEL MUTANT BRANCHED-CHAIN AMINO ACID AMINOTRANSFERASE AND METHOD FOR PRODUCING ISOLEUCINE USING SAME |
EP4245850A4 (en) * | 2020-12-11 | 2024-05-15 | CJ Cheiljedang Corporation | NEW GAMMA-AMINOBUTYRATE PERMEASE VARIANT AND METHOD FOR PRODUCING ISOLEUCINE USING THE SAME |
WO2023121055A1 (ko) * | 2021-12-21 | 2023-06-29 | 씨제이제일제당 (주) | L-이소루신 생산 미생물 및 이를 이용한 l-이소루신 생산 방법 |
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