JP2017518760A - L−アルギニンを生産するコリネバクテリウム属の微生物及びそれを用いたl−アルギニンの製造方法 - Google Patents
L−アルギニンを生産するコリネバクテリウム属の微生物及びそれを用いたl−アルギニンの製造方法 Download PDFInfo
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- JP2017518760A JP2017518760A JP2016575080A JP2016575080A JP2017518760A JP 2017518760 A JP2017518760 A JP 2017518760A JP 2016575080 A JP2016575080 A JP 2016575080A JP 2016575080 A JP2016575080 A JP 2016575080A JP 2017518760 A JP2017518760 A JP 2017518760A
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- Prior art keywords
- arginine
- corynebacterium
- promoter
- present
- argf2
- Prior art date
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- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
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- 101150077981 groEL gene Proteins 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
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- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
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- 101150094164 lysY gene Proteins 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- WRUGWIBCXHJTDG-UHFFFAOYSA-L magnesium sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Mg+2].[O-]S([O-])(=O)=O WRUGWIBCXHJTDG-UHFFFAOYSA-L 0.000 description 1
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- WQEPLUUGTLDZJY-UHFFFAOYSA-N n-Pentadecanoic acid Natural products CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 1
- 229930027945 nicotinamide-adenine dinucleotide Natural products 0.000 description 1
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- 125000003729 nucleotide group Chemical group 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
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- 238000007500 overflow downdraw method Methods 0.000 description 1
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- 235000019319 peptone Nutrition 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
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- 239000004455 soybean meal Substances 0.000 description 1
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- 238000005507 spraying Methods 0.000 description 1
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- 235000019698 starch Nutrition 0.000 description 1
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- 150000008163 sugars Chemical class 0.000 description 1
- 239000002600 sunflower oil Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
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Abstract
Description
従来知られている生物学的発酵方によるL−アルギニンの製造方法は炭素源、窒素源から直接L−アルギニンを生産する方法として、グルタミン酸(glutamate)生産菌株であるブレビバクテリウム(Brevibacterium)又はコリネバクテリウム(Corynebacterium)属の微生物から誘導された変異株を利用する方法、細胞融合により生育改善されたアミノ酸生産菌株を利用する方法などが報告されている。最近では、アルギニン生合成オペロンの発現を抑制する遺伝子argRを不活性化させた遺伝子組換え菌株を利用する方法(特許文献1)及びアルギニンオペロンのargFを過発現させる方法(特許文献2)などが報告されている。特に、従来アルギニン生産におけるアルギニンオペロンを調節するargRの欠損が重要な要素として考えられてきた。
このような背景下、本発明者らはL−アルギニンの生産収率を高めようと鋭意努力した結果、既存の重要な要素として知られていたアルギニンリプレッサー(argR)を欠損することなく、アルギニンオペロンの強化及びオルニチンカルバモイルトランスフェラーゼ活性を強化することにより、L−アルギニン生産親菌株に比べて高収率でL−アルギニンを生産することができることを確認し、本発明を完成した。
本発明の目的は、L−アルギニンを生産するコリネバクテリウム属微生物を提供することである。
前記目的を達成するための一つの様態として、本発明は、アルギニンオペロン及びオルニチンカルバモイルトランスフェラーゼの活性が強化されたL−アルギニンを生産するコリネバクテリウム属微生物を提供する。
以下、下記実施例によって本発明をより具体的に説明する。これらの実施例は単に本発明を例示的に実施するためのものであり、本発明の範囲はこれらの実施例に限定されない。
微生物の染色体上でアルギニンオペロンを強化するために、N−アセチルグルタミルホスフェート還元酵素(N-acetylglutamyl phosphate reductase、ArgC)の自己のプロモーターを欠損し、他のプロモーターに置換するベクターを作製した。置換プロモーターとしては強い発現誘導活性を有するlysCP1(特許文献5、配列番号18)を用いた。
アルギニン生合成酵素の一つであるオルニチンカルバモイルトランスフェラーゼを強化するために組換え発現ベクターを作製した。p117−cj7−GFP(特許文献4)を基盤ベクターとして利用し、前記基盤ベクターでGFPをコードする塩基配列をEcoRV−XbaI制限酵素で処理して除去した後、野生型コリネバクテリウム・グルタミクムATCC13869由来argF及び特許文献6のargF2を挿入した。
3−1.アルギニンオペロンの強化ベクター挿入
コリネバクテリウムの染色体にアルギニンオペロンの自己のプロモーターを置換するために、既存のアルギニン生産菌株に前記実施例1で作製したpD−PargC:: lysCP1組み換えベクターを形質転換させることで組換えベクター挿入菌株を製作した。具体的には、既存のアルギニン生産菌株であるKCCM10741P(特許文献10)及びATCC21831に、前記実施例1で作製したpD−PargC:: lysCP1組み換えベクターを形質転換させ、親菌株が持っている自己プロモーター配列と前記ベクター上のプロモーター配列とを相同組換えにより置換させることで、染色体内にlysCP1プロモーター配列を挿入させた。
前記実施例2で製作したp117−Pcj7−argF、p117−Pcj7−argF2、p117−Pcj7−argF/Pcj7−argF2組換え発現ベクターを電気パルス法を用いて前記菌株KCCM10741P_ΔPargC:: lysCP1及びATCC21831_ΔPargC:: lysCP1に挿入し、カナマイシン(kanamycin)を25mg/L含有した培地から選別して、最終的にargF2、argF2、argF/argF2を追加発現する菌株を製作した。前記菌株をそれぞれKCCM10741P_ΔPargC:: lysCP1_Pcj7−argF、KCCM10741P_ΔPargC:: lysCP1_Pcj7−argF2、KCCM10741P_ΔPargC:: lysCP1_Pcj7−argF/Pcj7−argF2、ATCC21831_ΔPargC:: lysCP1_Pcj7−argF、ATCC21831_ΔPargC:: lysCP1_Pcj7−argF2及び ATCC21831_ΔPargC:: lysCP1_Pcj7−argF/Pcj7−argF2と命名し、このうちKCCM10741P_ΔPargC:: lysCP1_Pcj7−argF2をCA06−2044と再命名してブダペスト条約下で2013年12月9日付で韓国微生物保存センター(KCCM)に寄託して寄託番号KCCM11498Pが付与された。
前記実施例3で製作したアルギニン生産菌株であるコリネバクテリウム・グルタミクム KCCM10741P_ΔPargC:: lysCP1、KCCM10741P_ΔPargC:: lysCP1_Pcj7−argF、KCCM10741P_ΔPargC:: lysCP1_Pcj7−argF2、KCCM10741P_ΔPargC:: lysCP1_Pcj7−argF/Pcj7−argF2、ATCC21831_ΔPargC:: lysCP1、ATCC21831_ΔPargC:: lysCP1_Pcj7−argF、ATCC21831_ΔPargC:: lysCP1_Pcj7−argF2及びATCC21831_ΔPargC:: lysCP1_Pcj7−argF/Pcj7−argF2を用いて、アルギニンオペロン及びオルニチンカルバモイルトランスフェラーゼ活性強化のアルギニン生産能への影響を把握するために下記のような方法で培養した。このとき、対照群としては親菌株であるコリネバクテリウム・グルタミクムKCCM10741P及びATCC21831を使用し、生産培地[グルコース6%、硫酸アンモニウム3%、第1リン酸カリウム0.1%、硫酸マグネシウム七水和物0.2%、CSL(コーン浸漬液)1.5%、NaCl 1%、酵母エキス0.5%、ビオチン100μg/L、pH7.2]を25ml入れた250mlのコーナー−バッフルプラスコに1白金耳の菌株を接種し、30℃で48時間、200rpmで培養して生産した。培養終了後、HPLCでL−アルギニンの生産量を測定し、その結果を表1に示した。
Claims (4)
- アルギニンオペロン及びオルニチンカルバモイルトランスフェラーゼの活性が強化されたL−アルギニンを生産するコリネバクテリウム属微生物。
- 前記オルニチンカルバモイルトランスフェラーゼが、配列番号1又は配列番号3のアミノ酸配列である、請求項1に記載のL−アルギニンを生産するコリネバクテリウム属微生物。
- 前記コリネバクテリウム属微生物が、コリネバクテリウム・グルタミクムであることを特徴とする、請求項1に記載のL−アルギニンを生産するコリネバクテリウム属微生物。
- 請求項1〜3のいずれか一項に記載のコリネバクテリウム属微生物を培養培地で培養する段階と、
前記培養培地又は微生物からL−アルギニンを回収する段階とを含むL−アルギニンを生産する方法。
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KR1020150076331A KR101835935B1 (ko) | 2014-10-13 | 2015-05-29 | L-아르기닌을 생산하는 코리네박테리움 속 미생물 및 이를 이용한 l-아르기닌의 제조 방법 |
PCT/KR2015/010768 WO2016060437A1 (ko) | 2014-10-13 | 2015-10-13 | L-아르기닌을 생산하는 코리네박테리움 속 미생물 및 이를 이용한 l-아르기닌의 제조 방법 |
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KR101999454B1 (ko) * | 2017-12-19 | 2019-07-11 | 씨제이제일제당 (주) | L-아르기닌을 생산하는 코리네박테리움 속 미생물 및 이를 이용한 l-아르기닌 생산방법 |
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EP3153573A4 (en) | 2017-12-06 |
US10626426B2 (en) | 2020-04-21 |
EP3153573B1 (en) | 2019-04-03 |
TWI583790B (zh) | 2017-05-21 |
HUE042618T2 (hu) | 2019-07-29 |
CN107002027A (zh) | 2017-08-01 |
JP6476212B2 (ja) | 2019-02-27 |
KR101835935B1 (ko) | 2018-03-12 |
TW201619374A (zh) | 2016-06-01 |
ES2724000T3 (es) | 2019-09-05 |
PL3153573T3 (pl) | 2019-08-30 |
CN107002027B (zh) | 2021-05-28 |
BR112016029730A2 (pt) | 2017-10-24 |
DK3153573T3 (da) | 2019-07-01 |
KR20160043890A (ko) | 2016-04-22 |
US20170226545A1 (en) | 2017-08-10 |
RU2671106C1 (ru) | 2018-10-29 |
CA2951019C (en) | 2021-11-16 |
EP3153573A1 (en) | 2017-04-12 |
BR112016029730B1 (pt) | 2023-11-14 |
MY188962A (en) | 2022-01-14 |
CA2951019A1 (en) | 2016-04-21 |
AU2015331160B2 (en) | 2018-08-02 |
AU2015331160A1 (en) | 2017-01-05 |
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