JP6859437B2 - L‐リジンを生産するコリネバクテリウム属微生物及びそれを用いたl‐リジンの生産方法 - Google Patents
L‐リジンを生産するコリネバクテリウム属微生物及びそれを用いたl‐リジンの生産方法 Download PDFInfo
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- JP6859437B2 JP6859437B2 JP2019525939A JP2019525939A JP6859437B2 JP 6859437 B2 JP6859437 B2 JP 6859437B2 JP 2019525939 A JP2019525939 A JP 2019525939A JP 2019525939 A JP2019525939 A JP 2019525939A JP 6859437 B2 JP6859437 B2 JP 6859437B2
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Description
1)前記タンパク質を暗号化するポリヌクレオチドのコピー数の増加、
2)前記ポリヌクレオチドの発現が増加するように発現調節配列の変形、
3)前記タンパク質の活性が強化されるように染色体上のポリヌクレオチド配列の変形、
4)前記タンパク質の活性を示す外来ポリヌクレオチドまたは前記ポリヌクレオチドのコドン最適化された変異型ポリヌクレオチドの導入、または、
5)これらの組み合わせによって強化されるように変形する方法などにより行われてもよいが、これに制限されない。
コリネバクテリウム・グルタミカムATCC13032から遺伝体DNAを抽出した後、制限酵素Sau3AIを処理し、アガロスゲール上で電気泳動を介してDNA切片を大きさによって分離し、3〜4kbのDNA切片を選択的に獲得した。これらを制限酵素BamHIの末端を有するpECCG117(特許文献10)ベクターと連結した後、大腸菌DH5αに導入し、カナマイシン(25mg/L)が含まれたLB固体培地に塗抹して形質転換されたコロニーを獲得した。ランダムの100個のコロニーから配列番号3及び4のプライマーを用いてPCRを行い、これを通じて目的とした3〜4kbほどのDNA切片が挿入されたベクターを含むコロニーの比率が90%以上であることを確認した。獲得したすべてのコロニーをカナマイシン(25mg/L)が含まれたLB液体培地に接種して混合培養し、通常に知られているプラスミド抽出法を用いてプラスミドを抽出し、コリネバクテリウム・グルタミカムATCC13032遺伝体のDNAライブラリーを完成した。
配列番号3:5’‐ACGACGGGATCAGTACCGA‐3’
配列番号4:5’‐AGCTATCTGTCGCAGCGCC‐3’
実施例1で製作した遺伝体DNAライブラリーを電気パルス法を用いて、リジンの生産菌株であるコリネバクテリウム・グルタミカムKCCM11016P(前記微生物はKFCC10881として公開されたが、ブダペスト条約下である国際寄託機関に再寄託されてKCCM11016Pとして寄託番号を付与された、特許文献11)に導入した後、カナマイシン(25mg/L)が含まれた複合平板培地に塗抹し、30℃で24時間培養してコロニー約2,000個を獲得した。
ブドウ糖 20g、(NH4)2SO450g、ペプトン 10g、酵母抽出物 5g、尿素 1.5g、KH2PO4 5g、K2HPO4 10g、MgSO4・7H2O 0.5g、ビオチン 100μg、チアミン塩酸塩 1000μg、パントテン酸カルシウム 2000μg、ニコチン酸アミド 2000μg、寒天 20g、カナマイシン 25mg(蒸留水1リットル基準)
ブドウ糖 20g、ペプトン 10g、酵母抽出物 5g、尿素 1.5g、KH2PO4 4g、K2HPO4 8g、MgSO4・7H2O 0.5g、ビオチン 100μg、チアミン塩酸塩 1000μg、パントテン酸カルシウム 2000μg、ニコチン酸アミド 2000μg、カナマイシン 25mg(蒸留水1リットル基準)
リジンオキシダーゼ(Sigma‐Aldrich)0.02unit、ペルオキシダーゼ(peroxidase、Sigma‐Aldrich)、0.2unit、ABTS2mg(リン酸カリウム緩衝溶液1ml基準)
ブドウ糖 20g、(NH4)2SO45g、ペプトン 10g、酵母抽出物 5g、尿素 1.5g、KH2PO4 4g、K2HPO4 8g、MgSO4・7H2O 0.5g、ビオチン 100μg、チアミン塩酸塩 1000μg、パントテン酸カルシウム 2000μg、ニコチン酸アミド 2000μg(蒸留水1リットル基準)
ブドウ糖 100g、(NH4)2SO4 40g、大豆タンパク質 2.5g、トウモロコシ浸漬固形分(Corn Steep Solids) 5g、尿素 3g、KH2PO4 1g、MgSO4・7H2O 0.5g、ビオチン 100μg、チアミン塩酸塩 1000μg、パントテン酸カルシウム 2000μg、ニコチンアミド 3000μg、 CaCO3 30g(蒸留水1リットル基準)
前記実施例2から確認されたHM1524の効果を確認するために、該当遺伝子を過発現するためのベクターを製作した。
配列番号5:5’‐TCACTCGAGTGATGGCCAGGTTGTTGTC‐3’
配列番号6:5’‐TCACTCGAGTTAGTCATAGGTACTAGTTT‐3’
前記実施例3で製造したベクターpECCG‐HM1524を電気パルス法を用いてリジン生産菌株であるコリネバクテリウム・グルタミカムKCCM11016Pに導入した後、カナマイシン(25mg/L)が含まれた複合平板培地に塗抹して、30℃で24時間培養し、コロニーを獲得した。獲得した菌株は、KCCM11016P/pECCG‐HM1524と命名し、実施例2に示したフラスコ培養法と同様な方法で3バッチを培養し、培養液中のL‐リジンの濃度を分析した(表2)。
前記実施例4から確認されたHM1524遺伝子の効果を確認するために、該当遺伝子をコリネバクテリウムの染色体上にさらに挿入するためのベクターを製作した。
配列番号7:5’‐TCAGAATTCTTCCTTCAGGCTAATCTTTT‐3’
配列番号8:5’‐TCACATATGTGTTTCCTTTCGTTGGGTAC‐3’
配列番号9:5’‐TCAACTAGTCTTCCTTCAGGCTAATCTTT‐3’
配列番号10:5’‐TCAGTCGACTGTTTCCTTTCGTTGGGTAC‐3’
配列番号11:5’‐TCACATATGCGCGTAGCTATGATTTC‐3’
配列番号12:5’‐TCAACTAGTTTAGCCGTGATGCGTTTCAC‐3’
前記実施例5で製作したベクターpDZ‐Pcj7‐HM1524を電気パルス法を用いてコリネバクテリウム・グルタミカムATCC11016Pに導入し、相同組み換えにより形質転換されたコロニーの中で染色体上のHM1524遺伝子の終結コドンの下段にHM1524遺伝子が挿入されたコロニーを選別した。PCR方法でコロニーを選別するため、配列番号13及び14のプライマーを用いた。選別された菌株はKCCM11016P::Pcj7‐HM1524と命名し、実施例2に示したフラスコ培養法と同様の方法で培養して、培養液中のL‐リジンの濃度を分析した(表3)。
配列番号13:5’‐GTCGAACACGCCAGAACATT‐3’
配列番号14:5’‐TACTCTCACGATCTCACCCT‐3’
前記実施例5で製造したベクターpDZ‐Pcj7‐HM1524をリジン生産菌株であるコリネバクテリウム・グルタミカムKCCM10770P(特許文献7)に形質転換させた。前記コリネバクテリウム・グルタミカムKCCM10770PはL‐リジンの生合成経路の関連遺伝子7種が染色体に挿入されたことを特徴とする。PCR方法でコロニーを選択的に分離し、HM1524遺伝子が導入された菌株をコリネバクテリウム・グルタミカムKCCM10770P::Pcj7‐HM1524と命名した。その後、実施例2で示したフラスコ培養法と同様の方法で培養し、培養液中のL‐リジンの濃度を分析した(表4)。
前記実施例5で製造したベクターpDZ‐Pcj7‐HM1524をリジンの生産菌株であるコリネバクテリウム・グルタミカムCJ3P(非特許文献1)に形質転換させた。コリネバクテリウム・グルタミカムCJ3Pは、L‐リジンの生産能の向上に関連する遺伝子3種が染色体に挿入されたことを特徴とする。PCR方法でコロニーを選択的に分離し、HM1524遺伝子が導入された菌株をコリネバクテリウム・グルタミカムCJ3P::Pcj7‐HM1524と命名した。実施例2で示したフラスコ培養法と同様の方法で培養し、培養液中のL‐リジンの濃度を分析した(表5)。
前記実施例5で製造したベクターpDZ‐Pcj7‐HM1524をリジンの生産菌株であるコリネバクテリウム・グルタミカムKCCM11347P(前記微生物はKFCC10750として公開されたが、ブダペスト条約下の国際寄託機関に再寄託されKCCM11347Pを与えられた、特許文献9)に形質転換させた。コリネバクテリウム・グルタミカムKCCM11347P は、L‐リジンの生産能の向上に関連する遺伝子3種が染色体に挿入されたことを特徴とする。PCR方法でコロニーを選択的に分離し、HM1524遺伝子が導入された菌株をコリネバクテリウム・グルタミカムKCCM11347P::Pcj7‐HM1524と命名した。実施例2で示したフラスコ培養法と同様の方法で培養し、培養液中のL‐リジンの濃度を分析した(表6)。
Claims (4)
- 配列番号1のアミノ酸配列からなるタンパク質の内在的活性に比べて、前記タンパク質の増加された活性を有する、コリネバクテリウム属(the genus Corynebacterium)のL‐リジン生産微生物。
- 前記微生物が、コリネバクテリウム・グルタミカム(Corynebacterium glutamicum)である、請求項1に記載のコリネバクテリウム属のL‐リジン生産微生物。
- 配列番号1のアミノ酸配列からなるタンパク質の内在的活性に比べて、前記タンパク質の増加された活性を有する、コリネバクテリウム属のL‐リジン生産微生物を培地で培養する段階;及び
前記培養された微生物またはその培地からL‐リジンを回収する段階を含む、L‐リジンの生産方法。 - 前記微生物が、コリネバクテリウム・グルタミカム(Corynebacterium glutamicum)である、請求項3に記載のL‐リジンの生産方法。
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KR10-2016-0152037 | 2016-11-15 | ||
KR1020160152037A KR101863456B1 (ko) | 2016-11-15 | 2016-11-15 | L-라이신을 생산하는 코리네박테리움 속 미생물 및 이를 이용한 l-라이신의 생산방법 |
PCT/KR2017/010243 WO2018093033A1 (ko) | 2016-11-15 | 2017-09-19 | L-라이신을 생산하는 코리네박테리움 속 미생물 및 이를 이용한 l-라이신의 생산방법 |
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WO2021133030A1 (ko) * | 2019-12-23 | 2021-07-01 | 씨제이제일제당 (주) | 사이토크롬 c 활성이 강화된 l-아미노산 생산 미생물 및 이를 이용한 l-아미노산 생산방법 |
KR102344057B1 (ko) * | 2021-01-29 | 2021-12-27 | 씨제이제일제당 (주) | 신규한 단백질 변이체 및 이를 이용한 l-라이신 생산 방법 |
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JPH07155184A (ja) * | 1993-12-08 | 1995-06-20 | Ajinomoto Co Inc | 発酵法によるl−リジンの製造法 |
KR0159812B1 (ko) | 1995-12-20 | 1998-11-16 | 손경식 | 코리네박테리움 글루타미컴 씨에이치 77 및 이 균주를 이용한 l-라이신의 제조 방법 |
DE19931317A1 (de) * | 1999-07-07 | 2001-01-11 | Degussa | L-Lysin produzierende coryneforme Bakterien und Verfahren zur Herstellung von L-Lysin |
US20050244935A1 (en) * | 1999-06-25 | 2005-11-03 | Basf Ag | Corynebacterium glutamicum genes encoding proteins involved in membrane synthesis and membrane transport |
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KR100620092B1 (ko) | 2004-12-16 | 2006-09-08 | 씨제이 주식회사 | 코리네박테리움 속 세포로부터 유래된 신규한 프로모터서열, 그를 포함하는 발현 카세트 및 벡터, 상기 벡터를포함하는 숙주 세포 및 그를 이용하여 유전자를 발현하는방법 |
JP2009060791A (ja) * | 2006-03-30 | 2009-03-26 | Ajinomoto Co Inc | L−アミノ酸生産菌及びl−アミノ酸の製造法 |
EP2066782A4 (en) * | 2006-09-15 | 2010-02-03 | Cj Cheiljedang Corp | CORYNEBACTERIA WITH IMPROVED L-LYSINE PRODUCTIVITY AND METHOD FOR THE PREPARATION OF L-LYSINE THEREWITH |
KR100838038B1 (ko) | 2006-12-29 | 2008-06-12 | 씨제이제일제당 (주) | L-라이신 생산능이 향상된 코리네박테리움 속 미생물 및그를 이용한 l-라이신 생산 방법 |
KR100930203B1 (ko) * | 2008-01-28 | 2009-12-07 | 씨제이제일제당 (주) | 개량된 프로모터 및 이를 이용한 l-라이신의 생산 방법 |
ES2510865T3 (es) * | 2008-03-03 | 2014-10-21 | Global Bio-Chem Technology Group Company Limited | Microorganismo recombinante y procedimiento para producir L-lisina |
IN2014MN01298A (ja) * | 2011-12-21 | 2015-07-03 | Cj Cheiljedang Corp | |
CN104073544A (zh) * | 2013-03-25 | 2014-10-01 | 上海爱启生态科技有限公司 | 一种有机硒化合物的制备方法 |
KR101498630B1 (ko) * | 2013-10-28 | 2015-03-04 | 씨제이제일제당 주식회사 | L-라이신 생산능이 향상된 코리네박테리움 속 미생물 및 이를 이용한 l-라이신 생산방법 |
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BR112019009942A2 (pt) | 2019-10-08 |
CN110268046B (zh) | 2023-06-30 |
WO2018093033A1 (ko) | 2018-05-24 |
US20190352683A1 (en) | 2019-11-21 |
RU2720522C1 (ru) | 2020-04-30 |
KR20180055010A (ko) | 2018-05-25 |
EP3543329A1 (en) | 2019-09-25 |
JP2019535271A (ja) | 2019-12-12 |
EP3543329A4 (en) | 2020-06-03 |
CN110268046A (zh) | 2019-09-20 |
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KR101863456B1 (ko) | 2018-06-01 |
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