WO2016056773A2 - L-글루타민을 생산하는 미생물 및 이를 이용한 l-글루타민 생산방법 - Google Patents
L-글루타민을 생산하는 미생물 및 이를 이용한 l-글루타민 생산방법 Download PDFInfo
- Publication number
- WO2016056773A2 WO2016056773A2 PCT/KR2015/009909 KR2015009909W WO2016056773A2 WO 2016056773 A2 WO2016056773 A2 WO 2016056773A2 KR 2015009909 W KR2015009909 W KR 2015009909W WO 2016056773 A2 WO2016056773 A2 WO 2016056773A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glutamine
- corynebacterium glutamicum
- producing
- medium
- mutant
- Prior art date
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- ZDXPYRJPNDTMRX-VKHMYHEASA-N L-glutamine Chemical compound OC(=O)[C@@H](N)CCC(N)=O ZDXPYRJPNDTMRX-VKHMYHEASA-N 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title abstract description 18
- 244000005700 microbiome Species 0.000 title description 15
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- 241000186226 Corynebacterium glutamicum Species 0.000 claims abstract description 32
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- -1 200 μg / L Substances 0.000 description 3
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Classifications
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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
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
-
- 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
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
- C07K14/24—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Enterobacteriaceae (F), e.g. Citrobacter, Serratia, Proteus, Providencia, Morganella, Yersinia
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Definitions
- the present invention relates to a microorganism producing L-glutamine and a method of producing L-glutamine using the same.
- L-glutamine is an amino acid widely used in medicines, cosmetics, health foods, etc., and has mainly produced L-glutamine by using microorganisms resistant to or susceptible to compounds.
- microorganisms resistant to or susceptible to compounds for example, sulfaguanidine resistant strains (Japanese Patent Laid-Open No. 1978-17675), Azaserine resistant microorganisms (Japanese Patent Laid-Open No. 1980-148094), penicillin sensitive microorganisms (Japanese Patent Laid-Open No. 1992-088994), tyrosine- Glutamic acid (tyr-glu) resistant strains (Japanese Patent Laid-Open No. 1990-186994) and the like have been used.
- the inventors of the present invention while conducting research to develop strains with improved production capacity of L-glutamine, obtained mutant strains resistant to high concentrations of L-glutamine, and the mutant strains obtained therefrom have high yields of L-glutamine.
- the present invention was completed by confirming to produce.
- Another object of the present invention to provide a method for producing L- glutamine using the Corynebacterium glutamicum mutant.
- Corynebacterium glutamicum (Corynebacterium glutamicum) resistant to L- glutamine, and provides a Corynebacterium glutamicum mutant producing L- glutamine.
- L-glutamine is a kind of amino acid constituting the protein, which is a monoamide of glutamic acid, and refers to an L-amino acid having a chemical formula of H2NCO-CH2CH2CH (NH2) COOH.
- the term "resistance to L-glutamine” refers to a property in which microorganisms are viable in the presence of high concentrations of L-glutamine, or that the activity of producing L-glutamine is maintained or increased.
- the mutant strain may be Corynebacterium glutamicum KCCM 11553P or Corynebacterium glutamicum KCCM11554P.
- the mutant strain may be resistant to high concentrations of L-glutamine.
- the mutant strain may specifically be resistant to L-glutamine concentrations of 5 g / L to 30 g / L, more specifically 15 g / L to 30 g / L, even more specifically 20 g / L to 25 g / L.
- the mutant strain may survive for at least 6 days in a minimal medium containing L-glutamine at a concentration of 15 to 25 (g / L).
- the mutant strain contains L-glutamine at a concentration of 15 to 25 (g / L), 0.1% of glucose at pH 7.0, 0.04% of magnesium sulfate (MgSO 4 ⁇ 7H 2 O), and potassium phosphate (KH 2 PO). 4 )
- MgSO 4 ⁇ 7H 2 O magnesium sulfate
- KH 2 PO potassium phosphate
- microorganism producing L-glutamine refers to a microorganism naturally having L-glutamine production capacity or a microorganism to which glutamine production capacity is imparted to a mother strain having no production capacity of L-glutamine.
- Corynebacterium glutamicum mutant with improved production capacity of L-glutamine of the present invention may be a desired mutant by mutating the parent strain.
- Mutagenesis of microorganisms can be carried out by a variety of means well known in the art, and can use either a physical or chemical mutagenesis.
- suitable chemical mutagens for the present invention include N-methyl-N'-nitro-N-nitrosoguanidine (NTG), diepoxybutane, ethylmethane But may include, but are not limited to, sulfonates, mustard compounds, hydrazines and nitrous acid.
- NTG N-methyl-N'-nitro-N-nitrosoguanidine
- diepoxybutane diepoxybutane
- ethylmethane But may include, but are not limited to, sulfonates, mustard compounds, hydrazines and nitrous acid.
- physical mutagenesis factors may include, but are not limited to, ultraviolet and
- the conventional glutamine-producing strain Corynebacterium glutamicum KFCC 10680 (Corynebacterium glutamicum KFCC 10680, Republic of Korea Patent No. 10-0048440) Can be used as a parent strain.
- the parent strain Corynebacterium glutamicum KFCC 10680 was treated with NTG to perform random mutations, and then cultured in a medium to which L-glutamine was added, thereby comparatively selecting L-glutamine production capacity between strains.
- Two mutant strains resistant to glutamine were obtained and named Gln096 (KCCM 11553P) and Gln265 (KCCM 11554P). It was confirmed that the Corynebacterium glutamicum Gln096 and Gln265 have a high yield of L- glutamine production capacity improved to about 10% relative to the parent strain.
- it provides a method for producing L- glutamine comprising the step of culturing the Corynebacterium glutamicum mutant in the medium.
- the Corynebacterium glutamicum mutant strain is as described above.
- the culture can be made according to the appropriate medium and culture conditions known in the art. Those skilled in the art can also easily adjust the medium and culture conditions.
- the medium may be a liquid medium, but is not limited thereto.
- the culture method may include, but is not limited to, batch culture, continuous culture, fed-batch culture, or combination culture thereof.
- the medium must meet the requirements of the particular strain in an appropriate manner and can be appropriately modified by those skilled in the art.
- Culture media for Corynebacteria strains may be referred to, but are not limited to, the Manual of Methods for General Bacteriology. American Society for Bacteriology.Washington D.C., USA, 1981.
- the medium may include various carbon sources, nitrogen sources, and trace element components.
- Carbon sources that may be used include, but are not limited to, sugars and carbohydrates such as glucose, sucrose, lactose, fructose, maltose, starch, cellulose, oils and fats such as soybean oil, sunflower oil, castor oil, coconut oil, palmitic acid, stearic acid, Fatty acids such as linoleic acid, alcohols such as glycerol, ethanol, and organic acids such as acetic acid. These materials may be used individually or as a mixture, but are not limited thereto.
- sugars and carbohydrates such as glucose, sucrose, lactose, fructose, maltose, starch, cellulose, oils and fats such as soybean oil, sunflower oil, castor oil, coconut oil, palmitic acid, stearic acid, Fatty acids such as linoleic acid, alcohols such as glycerol, ethanol, and organic acids such as acetic acid.
- sugars and carbohydrates such as glucose, sucrose, lactose, fructose,
- Nitrogen sources that may be used may include peptone, yeast extract, gravy, malt extract, corn steep liquor, soybean wheat and urea or inorganic compounds such as ammonium sulfate, ammonium chloride, ammonium phosphate, ammonium carbonate and ammonium nitrate. Nitrogen sources can also be used individually or as a mixture, but are not limited thereto. Sources of phosphorus that may be used may include, but are not limited to, potassium dihydrogen phosphate or dipotassium hydrogen phosphate or the corresponding sodium-containing salts. In addition, the culture medium may contain a metal salt such as magnesium sulfate or iron sulfate required for growth, but is not limited thereto.
- essential growth substances such as amino acids and vitamins may be included.
- suitable precursors to the culture medium can be used.
- the medium or individual components may be added batchwise or continuously in a suitable manner to the culture medium during the culturing process, but is not limited thereto.
- compounds such as ammonium hydroxide, potassium hydroxide, ammonia, phosphoric acid and sulfuric acid can be added to the microbial culture in a suitable manner to adjust the pH of the culture.
- anti-foaming agents such as fatty acid polyglycol esters can be used during the culture to suppress bubble generation.
- oxygen or an oxygen-containing gas eg, air
- the temperature of the culture may be usually 20 °C to 45 °C, for example 25 °C to 40 °C. The incubation period can last until the desired amount of quinoline acid is obtained, for example 10 to 160 hours.
- the culturing may be to culture in a medium containing a high concentration of L- glutamine, for example, 15 to 25 g / L, or 20 to 25 g / L L- glutamine concentration.
- L-glutamine production method of the present invention may comprise the step of recovering L- glutamine from the cultured microorganism or medium.
- the method for recovering L-glutamine from the microorganism or the medium may collect or recover L-glutamine produced from the medium using a suitable method known in the art depending on the culture method. For example, centrifugation, filtration, anion exchange chromatography, crystallization and HPLC can be used, but are not limited to these examples.
- Corynebacterium glutamicum mutant of the present invention can produce L-glutamine even in a medium containing high concentration of L-glutamine.
- L-glutamine can be produced with high efficiency and high yield to enable industrial production.
- the parent strain Corynebacterium glutamicum KFCC 10680 ( Corynebacterium glutamicum KFCC 10680, Republic of Korea Patent Registration No. 10-0048440) was activated the activation medium (Beef extract 1%, Polypeptone 1% , 0.5% sodium chloride (NaCl), yeast extract 0.5%, and agar (Agar) 2%, pH 7.2: "Activation medium” has the same composition) (% indicates w / v%, Activated strains obtained by incubating for 16 hours in the same manner for all% of the examples below), sterilized for 15 minutes at 121 °C (5.0% glucose, 1% bactopeptone, sodium chloride (NaCl) ) 0.25% yeast extract 1%, biotin 3 ⁇ g / L, and urea 0.4%, pH 7.0: "Species medium” has the same composition) for 14 hours.
- the activation medium Beef extract 1%, Polypeptone 1% , 0.5% sodium chloride (
- the NTG treated cells were centrifuged at 8000 rpm for 5 minutes to remove the supernatant, followed by the addition of 100 mM phosphate buffer and resuspended, followed by centrifugation to remove the supernatant. .
- 5 ml of seed medium was added to the NTG-treated strain pellet and resuspended, and this was resuspended in a minimum medium (0.1% glucose, 0.04% magnesium sulfate (MgSO 4 ⁇ 7H 2 O), and potassium potassium phosphate (KH 2 PO).
- washed NTG-treated strains were plated on a minimal medium-containing plate to which L-glutamine (final concentration 15 g / L) was added, and cultured at 30 ° C. for 6 days to select L-glutamine resistance by selecting viable cell colonies. Mutant strains were selected.
- Selected resistant mutants were glutamine producing medium (glucose 4.0%, ammonium chloride (NH 4 Cl) 3.0%, soy protein acid hydrolyzate 0.3%, calcium carbonate (CaCO 3 ) 5%, calcium chloride (CaCl 2 ) 0.1%, magnesium sulfate (MgSO 4 .7H 2 O) 0.05%, potassium monophosphate (KH 2 PO 4 ) 0.15%, potassium diphosphate (K 2 HPO 4 ) 0.15%, urea (0.3%), thiamine (Thiamine-HCl) 2mg / L, Biotin 5 ⁇ g / L, Ferrous Sulfate (FeSO 4 ⁇ 7H 2 O) 20mg / L, Manganese Sulfate (MnSO 4 ⁇ H 2 O) 20mg / L, and Zinc Sulfate (ZnSO 4 ⁇ 7H 2 O) 12 mg / L, pH 6.8: The following "glutamine production medium” has the same composition.) One loop
- the selected strains were named Corynebacterium glutamicum Gln096 and Gln265, and these were deposited with the Korea Microorganism Conservation Center on July 3, 2014 and were assigned accession numbers KCCM11553P and KCCM11554P, respectively.
- the parent strain was low in the degree of growth at the L- glutamine concentration of 15 g / L and can not grow at the L- glutamine concentration of 20 g / L or more, while the strain strain Corynebacterium Glutamicum Gln096 (KCCM11553P) and Gln265 (KCCM11554P) are still highly grown at L-glutamine concentrations of 15 g / L and can be grown at L-glutamine concentrations above 20 g / L, so that the mutants have high levels of L-glutamine. It was confirmed that it has a resistance to.
- Fermentation medium glucose 10%, ammonium chloride (NH 4 Cl) 4.5%, soy protein acid hydrolyzate 0.5%, calcium carbonate (CaCO 3 ) 5%, calcium chloride (CaCl 2 ) 0.1%, magnesium sulfate ( MgSO 4 7H 2 O) 0.05%, Potassium phosphate (KH 2 PO 4 ) 0.15%, Potassium phosphate (K 2 HPO 4 ) 0.15%, Urea 0.3%, Thiamine (HCl) 2mg / L, Biotin 5 ⁇ g / L, Ferrous Sulfate (FeSO 4 ⁇ 7H 2 O) 20 mg / L, Manganese Sulfate (MnSO 4 ⁇ H 2 O) 20 mg / L, and Zinc Sulfate (ZnSO 4 ⁇ 7H 2 O) 12 mg / L, pH 6.8: The following “fermentation medium” has the same composition.) Dispense 20 ml into a 250 ml shaking Erl
- the parent strain Corynebacterium glutamicum KFCC10680 produced L-glutamine at a concentration of 12.6 g / L, but the variant strain Corynebacterium glutamicum Gln096 was 13.8 g. L-glutamine was produced at a concentration of / L, and it was confirmed that L-glutamine productivity was increased by about 9.5% or more compared with the parent strain.
- the mutant strain Corynebacterium glutamicum Gln265 produced L-glutamine at a concentration of 14.1 g / L, it was confirmed that the L- glutamine productivity increased by about 11% or more compared with the parent strain.
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Abstract
Description
균주 | L-글루타민농도(g/L) | ||||
2.5 | 10 | 15 | 20 | 25 | |
KFCC 10680 | +++ | +++ | + | - | - |
Gln096 | +++ | +++ | +++ | ++ | + |
Gln265 | +++ | +++ | +++ | ++ | + |
균주 | L-글루타민농도(g/L) |
KFCC10680 | 12.6 |
Gln096(변이주) | 13.8 |
Gln265(변이주) | 14.1 |
Claims (3)
- L-글루타민에 대해 내성을 갖는 코리네박테리움 글루타미쿰 (Corynebacterium glutamicum)으로서, L-글루타민을 생산하는 코리네박테리움 글루타미쿰 변이주 KCCM11553P 또는 KCCM11554P.
- 제1항에 있어서, 15 내지 25 농도(g/L)의 L-글루타민을 함유하는, 배양배지에서 6일 이상 생존할 수 있는 상기 코리네박테리움 글루타미쿰 변이주 KCCM11553P 또는 KCCM11554P.
- 제1항 또는 제2항의 코리네박테리움 글루타미쿰 변이주를 배양하는 단계, 및 상기 변이주 또는 배지로부터 L-글루타민을 회수하는 단계;를 포함하는 L-글루타민을 생산하는 방법.
Priority Applications (9)
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MYPI2017000437A MY182673A (en) | 2014-10-08 | 2015-09-22 | Microorganism for producing l-glutamine and method for producing l-glutamine using same |
EP15848984.9A EP3205714B1 (en) | 2014-10-08 | 2015-09-22 | Microorganism for producing l-glutamine and method for producing l-glutamine using same |
AU2015328946A AU2015328946B2 (en) | 2014-10-08 | 2015-09-22 | Microorganism for producing L-glutamine and method for producing L-glutamine using same |
JP2017517032A JP6483253B2 (ja) | 2014-10-08 | 2015-09-22 | L−グルタミンを生産する微生物、及びそれを利用したl−グルタミン生産方法 |
RU2017109400A RU2665830C1 (ru) | 2014-10-08 | 2015-09-22 | Мутантный штамм Corynebacterium glutamicum, продуцирующий L-глутамин (варианты), и способ получения L-глутамина |
CA2963926A CA2963926C (en) | 2014-10-08 | 2015-09-22 | Microorganism for producing l-glutamine and method for producing l-glutamine using same |
CN201580055019.9A CN107208038A (zh) | 2014-10-08 | 2015-09-22 | 用于产生l‑谷氨酰胺的微生物及使用其产生l‑谷氨酰胺的方法 |
US15/515,744 US10023888B2 (en) | 2014-10-08 | 2015-09-22 | Microorganism for producing L-glutamine and method for producing L-glutamine using same |
ES15848984T ES2817933T3 (es) | 2014-10-08 | 2015-09-22 | Microorganismo de producción de L-glutamina y procedimiento de producción de L-glutamina utilizando el mismo |
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KR1020140135959A KR101694850B1 (ko) | 2014-10-08 | 2014-10-08 | L-글루타민을 생산하는 미생물 및 이를 이용한 l-글루타민 생산방법 |
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CA (1) | CA2963926C (ko) |
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CN117512029B (zh) * | 2024-01-03 | 2024-03-29 | 地奥集团成都药业股份有限公司 | 一种提升谷氨酰胺产量的培养基、方法及代谢组学分析方法 |
CN118726206A (zh) * | 2024-09-02 | 2024-10-01 | 地奥集团成都药业股份有限公司 | 一种谷氨酸棒杆菌发酵培养基及谷氨酰胺生产方法 |
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JP5827131B2 (ja) | 2010-01-08 | 2015-12-02 | 協和発酵バイオ株式会社 | L−グルタミンまたはl−グルタミン酸の製造法 |
KR101048440B1 (ko) | 2010-04-29 | 2011-07-11 | 금호전기주식회사 | Led모듈 가변 장착형 방열판 및 이를 이용한 조명 장치 |
KR101001544B1 (ko) | 2010-10-26 | 2010-12-17 | 최점미 | 전기 기구용 전기장 및 자기장의 발생을 방지하는 발열선 |
DK2803722T3 (en) | 2012-01-10 | 2018-01-08 | Cj Cheiljedang Corp | Corynebacterium microorganisms capable of utilizing xylose, and method for producing L-lysine using the same |
KR101481782B1 (ko) * | 2012-12-28 | 2015-01-13 | 대상 주식회사 | Gogat의 불활성화에 의한 아미노산 고생산능 변이 균주 |
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2014
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MY182673A (en) | 2021-01-29 |
AU2015328946B2 (en) | 2018-10-18 |
KR101694850B1 (ko) | 2017-01-10 |
CA2963926A1 (en) | 2016-04-14 |
CN107208038A (zh) | 2017-09-26 |
EP3205714A4 (en) | 2018-03-07 |
ES2817933T3 (es) | 2021-04-08 |
RU2665830C1 (ru) | 2018-09-04 |
JP6483253B2 (ja) | 2019-03-13 |
US20170292135A1 (en) | 2017-10-12 |
AU2015328946A1 (en) | 2017-05-25 |
KR20160041624A (ko) | 2016-04-18 |
HUE051762T2 (hu) | 2021-03-29 |
JP2017529858A (ja) | 2017-10-12 |
EP3205714B1 (en) | 2020-08-05 |
WO2016056773A3 (ko) | 2017-04-27 |
EP3205714A2 (en) | 2017-08-16 |
US10023888B2 (en) | 2018-07-17 |
CA2963926C (en) | 2018-07-24 |
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