Multiple strategies to improve the yield of chitinase a from Bacillus licheniformis in Pichia pastoris to obtain plant growth enhancer and GlcNAc
Chitinase and chitin-oligosaccaride can be used in multiple field, so it is important to develop a high-yield chitinase producing strain. Here, a recombinant Pichia pastoris with 4 copies of ChiA gene from Bacillus licheniformis and co-expression of molecular chaperon HAC1 was constructed. The amount of recombinant ChiA in the supernatant of high-cell-density fermentation reaches a maximum of 12.7 mg/mL, which is 24-fold higher than that reported in the previous study. The recombinant ChiA can hydrolyze 30% collodidal chitin with 74% conversion ratio, and GlcNAc is the most abundant hydrolysis product, followed by N, N'-diacetylchitobiose. Combined with BsNagZ, the hydrolysate of ChiA can be further transformed into GlcNAc with 88% conversion ratio. Additionally, the hydrolysate of ChiA can obviously accelerate the germination growth of rice and wheat, increasing the seedling height and root length by at least 1.6 folds within 10 days.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
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| Enthalten in: |
Microbial cell factories - 19(2020), 1 vom: 15. Sept., Seite 181 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Song, Wen [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 04.06.2021 Date Revised 04.06.2021 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1186/s12934-020-01440-y |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM315054476 |
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Chitinase and chitin-oligosaccaride can be used in multiple field, so it is important to develop a high-yield chitinase producing strain. Here, a recombinant Pichia pastoris with 4 copies of ChiA gene from Bacillus licheniformis and co-expression of molecular chaperon HAC1 was constructed. The amount of recombinant ChiA in the supernatant of high-cell-density fermentation reaches a maximum of 12.7 mg/mL, which is 24-fold higher than that reported in the previous study. The recombinant ChiA can hydrolyze 30% collodidal chitin with 74% conversion ratio, and GlcNAc is the most abundant hydrolysis product, followed by N, N'-diacetylchitobiose. Combined with BsNagZ, the hydrolysate of ChiA can be further transformed into GlcNAc with 88% conversion ratio. Additionally, the hydrolysate of ChiA can obviously accelerate the germination growth of rice and wheat, increasing the seedling height and root length by at least 1.6 folds within 10 days | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Chitinase | |
| 650 | 4 | |a Colloidal chitin | |
| 650 | 4 | |a GlcNAc | |
| 650 | 4 | |a Pichia pastoris | |
| 650 | 4 | |a Plant growth | |
| 650 | 7 | |a Basic-Leucine Zipper Transcription Factors |2 NLM | |
| 650 | 7 | |a Molecular Chaperones |2 NLM | |
| 650 | 7 | |a Oligosaccharides |2 NLM | |
| 650 | 7 | |a Plant Growth Regulators |2 NLM | |
| 650 | 7 | |a Recombinant Proteins |2 NLM | |
| 650 | 7 | |a Chitin |2 NLM | |
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| 650 | 7 | |a Chitosan |2 NLM | |
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| 650 | 7 | |a Chitinases |2 NLM | |
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| 650 | 7 | |a Acetylglucosaminidase |2 NLM | |
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| 650 | 7 | |a Acetylglucosamine |2 NLM | |
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| 700 | 1 | |a Yang, Mo |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Yuling |e verfasserin |4 aut | |
| 700 | 1 | |a He, Nisha |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Guimin |e verfasserin |4 aut | |
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