ArticleWorld journal of microbiology & biotechnology2018
Enhanced production of heterologous proteins by Bacillus licheniformis with defective D-alanylation of lipoteichoic acid.
Article in World journal of microbiology & biotechnology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 20 citations in OpenAlex.
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- Occurrence and potential mechanism of holin-mediated non-lytic protein translocation in bacteria.Microbial cell (Graz, Austria) · 2022Review
- Enhanced production of heterologous proteins via engineering the cell surface of Bacillus licheniformis.Journal of industrial microbiology & biotechnology · 2019Article
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7 authors at 1 institution in 1 country.
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Abstract
Heterologous expression is an efficient strategy for target protein production. Dlt operon plays the important role in the D-alanylation of lipoteichoic acid, which might affect the net negative charge of cell wall for protein secretion. In this study, dlt operon was deleted to improve the target protein production, and nattokinase, α-amylase and β-mannanase with different isoelectric points (PIs) were served as the target proteins. Firstly, our results implied that deletions of dltA, dltB, dltC and dltD improved the net negative charge of cell wall for extracellular protein secretion respectively, and among which, the dltB deficient strain DW2ΔdltB showed the best performance, its nattokinase (PI: 8.60) activity was increased by 27.50% compared with that of DW2/pP43SacCNK. Then, the dltABCD mutant strain was constructed, and the net negative charge and nattokinase activity were increased by 55.57% and 37.13% respectively, due to the deficiency of dltABCD. Moreover, it was confirmed that the activities of α-amylase (PI: 6.26) and β-mannanase (PI: 5.75) were enhanced by 44.53% and 53.06% in the dltABCD deficient strains, respectively. Collectively, this study provided a strategy that deletion of dlt operon improves the protein secretion in B. licheniformis, and which strategy was more conducive to the target protein with lower PI.
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