CN108546697A - 酶法制备beta丙氨酸 - Google Patents
酶法制备beta丙氨酸 Download PDFInfo
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- CN108546697A CN108546697A CN201810306203.1A CN201810306203A CN108546697A CN 108546697 A CN108546697 A CN 108546697A CN 201810306203 A CN201810306203 A CN 201810306203A CN 108546697 A CN108546697 A CN 108546697A
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- Prior art keywords
- alanine
- pandcg
- ala
- aspartic acid
- leu
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- 238000001976 enzyme digestion Methods 0.000 description 1
- 239000013604 expression vector Substances 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- 235000011194 food seasoning agent Nutrition 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000013537 high throughput screening Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011177 media preparation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000008057 potassium phosphate buffer Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- HRSIEGIETAEGEO-UHFFFAOYSA-M sodium;acetonitrile;acetate Chemical compound [Na+].CC#N.CC([O-])=O HRSIEGIETAEGEO-UHFFFAOYSA-M 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/88—Lyases (4.)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- 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
- C12P13/06—Alanine; Leucine; Isoleucine; Serine; Homoserine
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y401/00—Carbon-carbon lyases (4.1)
- C12Y401/01—Carboxy-lyases (4.1.1)
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
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- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
Description
| 突变体 | 突变氨基酸 | 相对酶活力(%) |
| Pandcg | -- | 100 |
| Pandcg-17 | L32A | 348 |
| Pandcg-59 | E40R | 189 |
| Pandcg-167 | D19V,L32A | 315 |
| Pandcg-398 | L32A,E40R,K43L, | 487 |
| Pandcg-677 | E40R | 253 |
Claims (10)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109735522A (zh) * | 2018-12-26 | 2019-05-10 | 浙江工业大学 | 一种L-天冬氨酸-α-脱羧酶突变体及其应用 |
| CN113528366A (zh) * | 2021-07-15 | 2021-10-22 | 洛阳华荣生物技术有限公司 | 一种产beta-丙氨酸酵母菌及其构建方法 |
| CN113801869A (zh) * | 2021-09-26 | 2021-12-17 | 浙江工业大学 | β丙氨酸合成酶突变体、编码基因、基因工程菌及应用 |
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| CN106754845A (zh) * | 2016-11-30 | 2017-05-31 | 浙江工业大学 | 一种panD突变基因、编码蛋白、载体、工程菌及其应用 |
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- 2018-04-08 CN CN201810306203.1A patent/CN108546697B/zh active Active
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| 赵连真 等: "谷氨酸棒杆菌L-天冬氨酸α-脱羧酶在大肠杆菌中的表达及酶转化生产β-丙氨酸", 《微生物学通报》 * |
Cited By (4)
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| CN113528366A (zh) * | 2021-07-15 | 2021-10-22 | 洛阳华荣生物技术有限公司 | 一种产beta-丙氨酸酵母菌及其构建方法 |
| CN113528366B (zh) * | 2021-07-15 | 2023-12-08 | 洛阳华荣生物技术有限公司 | 一种产beta-丙氨酸酵母菌及其构建方法 |
| CN113801869A (zh) * | 2021-09-26 | 2021-12-17 | 浙江工业大学 | β丙氨酸合成酶突变体、编码基因、基因工程菌及应用 |
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| CN108546697B (zh) | 2020-07-24 |
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