KR100426807B1 - 엘-쓰레오닌 생산 미생물 및 이를 이용한 엘-쓰레오닌 제조방법 - Google Patents
엘-쓰레오닌 생산 미생물 및 이를 이용한 엘-쓰레오닌 제조방법 Download PDFInfo
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- KR100426807B1 KR100426807B1 KR10-2001-0034559A KR20010034559A KR100426807B1 KR 100426807 B1 KR100426807 B1 KR 100426807B1 KR 20010034559 A KR20010034559 A KR 20010034559A KR 100426807 B1 KR100426807 B1 KR 100426807B1
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- Prior art keywords
- threonine
- coli
- pykf
- producing
- microorganism
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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
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/74—Vectors or expression systems specially adapted for prokaryotic hosts other than E. coli, e.g. Lactobacillus, Micromonospora
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- 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
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- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
- C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
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- Organic Chemistry (AREA)
- Biotechnology (AREA)
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- Virology (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
Description
| 튜브 번호 | pGmTN-PPC 12(μl) | pPB25 파지 분해물(μl) |
| 1 | 100 | 0 |
| 2 | 100 | 10 |
| 3 | 100 | 50 |
| 4 | 100 | 100 |
| 5 | 0 | 100 |
| 조성물 | 농도(리터당) |
| 포도당 | 70g |
| 황산암모늄 | 28g |
| KH2PO4 | 1.0g |
| MgSO4·7H2O | 0.5g |
| FeSO4·7H2O | 5mg |
| MnSO4·8H2O | 5mg |
| 탄산칼슘 | 30g |
| L-메티오닌 | 0.15g |
| 효모엑기스 | 2g |
| pH 7.0 |
| 20-22 g/l | 22-24 g/l | 24-26 g/l | 26 g/l 이상 |
| 7 | 6 | 9 | 8 |
| 조성물 | 농도(리터당) |
| 포도당 | 50g |
| KH2PO4 | 4g |
| (NH4)2SO4 | 6g |
| 효모엑기스 | 3g |
| MgSO4·7H2O | 2g |
| L-메티오닌 | 1g |
| FeSO4·7H2O | 40mg |
| MnSO4·8H2O | 10mg |
| CaCl2·2H2O | 40mg |
| CoCl2·6H2O | 4mg |
| H3BO3 | 5mg |
| Na2MoO4·2H2O | 2mg |
| ZnSO4·7H2O | 2mg |
| pH 7.0 |
| 균주명 | 쓰레오닌 농도(g/l) | 발효시간(시간) | 수율(%) |
| E. coli TF4076 | 75.3 | 78 | 30.1 |
| E. coli ABA/fus-pykF16 | 102 | 77 | 38.0 |
Claims (2)
- 2개의 포스포에놀 피루베이트 카르복실레이즈(phosphoenol pyruvate carboxylase; ppc) 코딩 유전자와 2개의 쓰레오닌 오페론을 보유하는 E. coli pGMTN-PPC 12(KCCM-10236)에서 유래되고, 피루베이트 카이네이즈 이소자임을 인코딩하는 pykA 또는 pykF 유전자의 발현활성이 억제된 L-쓰레오닌 생산균주 E. coli ABA/fus-pykF 16(KCCM-10269).
- 제 1항에 따른 미생물 E. coli ABA/fus-pykF 16 (KCCM-10269)을 LB 배지에서 종균배양한 후, 초기 배지에서 32℃에서 교반, 통기하에 본 배양을 실시하면서 포도당 농도가 5%가 되도록 추가당을 첨가하여 배양하는 것을 특징으로 하는 L-쓰레오닌 생산방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0034559A KR100426807B1 (ko) | 2001-06-19 | 2001-06-19 | 엘-쓰레오닌 생산 미생물 및 이를 이용한 엘-쓰레오닌 제조방법 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0034559A KR100426807B1 (ko) | 2001-06-19 | 2001-06-19 | 엘-쓰레오닌 생산 미생물 및 이를 이용한 엘-쓰레오닌 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20020096232A KR20020096232A (ko) | 2002-12-31 |
| KR100426807B1 true KR100426807B1 (ko) | 2004-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0034559A Expired - Fee Related KR100426807B1 (ko) | 2001-06-19 | 2001-06-19 | 엘-쓰레오닌 생산 미생물 및 이를 이용한 엘-쓰레오닌 제조방법 |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100426807B1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100858913B1 (ko) | 2007-03-09 | 2008-09-17 | 한국과학기술원 | 부위특이적 변이에 의해 제조된 고수율의 l-쓰레오닌생산균주 및 이를 이용한 l-쓰레오닌의 제조방법 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931691A (ja) * | 1982-08-16 | 1984-02-20 | Ajinomoto Co Inc | 発酵法によるl−スレオニンの製造法 |
| US5939307A (en) * | 1996-07-30 | 1999-08-17 | The Archer-Daniels-Midland Company | Strains of Escherichia coli, methods of preparing the same and use thereof in fermentation processes for l-threonine production |
| KR20020061348A (ko) * | 2001-01-16 | 2002-07-24 | 제일제당주식회사 | L-쓰레오닌의 제조방법 |
| WO2002064808A1 (en) * | 2001-02-13 | 2002-08-22 | Cheil Jedang Corporation | Method for l-threonine production |
-
2001
- 2001-06-19 KR KR10-2001-0034559A patent/KR100426807B1/ko not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5931691A (ja) * | 1982-08-16 | 1984-02-20 | Ajinomoto Co Inc | 発酵法によるl−スレオニンの製造法 |
| US5939307A (en) * | 1996-07-30 | 1999-08-17 | The Archer-Daniels-Midland Company | Strains of Escherichia coli, methods of preparing the same and use thereof in fermentation processes for l-threonine production |
| KR20020061348A (ko) * | 2001-01-16 | 2002-07-24 | 제일제당주식회사 | L-쓰레오닌의 제조방법 |
| WO2002064808A1 (en) * | 2001-02-13 | 2002-08-22 | Cheil Jedang Corporation | Method for l-threonine production |
Non-Patent Citations (2)
| Title |
|---|
| J Bacteriol. 1995 Oct;177(19):5719-22., 본원 발명의 구성 및 작용에 언급된 논문 * |
| J Ind Microbiol. 1996 Jul;17(1):47-52., 본원 발명의 구성 및 작용에 언급된 논문 * |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20020096232A (ko) | 2002-12-31 |
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