Synthetic and Systems Biotechnology最新文献

筛选
英文 中文
Integrating chemistry knowledge in large language models via prompt engineering 通过提示工程在大型语言模型中整合化学知识
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-07-24 DOI: 10.1016/j.synbio.2024.07.004
Hongxuan Liu , Haoyu Yin , Zhiyao Luo , Xiaonan Wang
{"title":"Integrating chemistry knowledge in large language models via prompt engineering","authors":"Hongxuan Liu ,&nbsp;Haoyu Yin ,&nbsp;Zhiyao Luo ,&nbsp;Xiaonan Wang","doi":"10.1016/j.synbio.2024.07.004","DOIUrl":"10.1016/j.synbio.2024.07.004","url":null,"abstract":"<div><p>This paper presents a study on the integration of domain-specific knowledge in prompt engineering to enhance the performance of large language models (LLMs) in scientific domains. The proposed domain-knowledge embedded prompt engineering method outperforms traditional prompt engineering strategies on various metrics, including capability, accuracy, F1 score, and hallucination drop. The effectiveness of the method is demonstrated through case studies on complex materials including the MacMillan catalyst, paclitaxel, and lithium cobalt oxide. The results suggest that domain-knowledge prompts can guide LLMs to generate more accurate and relevant responses, highlighting the potential of LLMs as powerful tools for scientific discovery and innovation when equipped with domain-specific prompts. The study also discusses limitations and future directions for domain-specific prompt engineering development.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"10 1","pages":"Pages 23-38"},"PeriodicalIF":4.4,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24001029/pdfft?md5=dd4b0bce2ec7b1ef7c85fdaea00ca13c&pid=1-s2.0-S2405805X24001029-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141963054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Liposome-based RNAi delivery in honeybee for inhibiting parasite Nosema ceranae 基于脂质体的 RNAi 在蜜蜂中的传递,用于抑制寄生虫野鹅膏蝇
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-07-18 DOI: 10.1016/j.synbio.2024.07.003
Yue Qi , Chen Wang , Haoyu Lang , Yueyi Wang , Xiaofei Wang , Hao Zheng , Yuan Lu
{"title":"Liposome-based RNAi delivery in honeybee for inhibiting parasite Nosema ceranae","authors":"Yue Qi ,&nbsp;Chen Wang ,&nbsp;Haoyu Lang ,&nbsp;Yueyi Wang ,&nbsp;Xiaofei Wang ,&nbsp;Hao Zheng ,&nbsp;Yuan Lu","doi":"10.1016/j.synbio.2024.07.003","DOIUrl":"10.1016/j.synbio.2024.07.003","url":null,"abstract":"<div><p><em>Nosema ceranae</em>, a parasite that parasitizes and reproduces in the gut of honeybees, has become a serious threat to the global apiculture industry. RNA interference (RNAi) technology can be used to inhibit <em>N. ceranae</em> growth by targeting silencing the thioredoxin reductase (TrxR) in <em>N. ceranae</em>. However, suitable carriers are one of the reasons limiting the application of RNAi due to the easy degradation of dsRNA in honeybees. As a vesicle composed of a lipid bilayer, liposomes are a good carrier for nucleic acid delivery, but studies in honeybees are lacking. In this study, liposomes were used for double-stranded RNA (dsRNA) dsTrxR delivery triggering RNAi to inhibit the <em>N. ceranae</em> growth in honeybees. Compared to naked dsTrxR, liposome-dsTrxR reduced <em>N. ceranae</em> numbers in the midgut and partially restored midgut morphology without affecting bee survival and gut microbial composition. The results of this study confirmed that liposomes could effectively protect dsRNA from entering the honeybee gut and provide a reference for using RNAi technology to suppress honeybee pests and diseases.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 853-860"},"PeriodicalIF":4.4,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24001017/pdfft?md5=4766286501f4e15858133f504ab98853&pid=1-s2.0-S2405805X24001017-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141949676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative omics directed gene discovery and rewiring for normal temperature-adaptive red pigment synthesis by polar psychrotrophic fungus Geomyces sp. WNF-15A 极性精神营养真菌 Geomyces sp. WNF-15A 在正常温度适应性红色素合成过程中的全息比较基因发现和重新布线
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-07-16 DOI: 10.1016/j.synbio.2024.07.002
Haoyu Long , Jiawei Zhou , Yanna Ren , Jian Lu , Nengfei Wang , Haifeng Liu , Xiangshan Zhou , Menghao Cai
{"title":"Comparative omics directed gene discovery and rewiring for normal temperature-adaptive red pigment synthesis by polar psychrotrophic fungus Geomyces sp. WNF-15A","authors":"Haoyu Long ,&nbsp;Jiawei Zhou ,&nbsp;Yanna Ren ,&nbsp;Jian Lu ,&nbsp;Nengfei Wang ,&nbsp;Haifeng Liu ,&nbsp;Xiangshan Zhou ,&nbsp;Menghao Cai","doi":"10.1016/j.synbio.2024.07.002","DOIUrl":"10.1016/j.synbio.2024.07.002","url":null,"abstract":"<div><p>The Antarctic fungus <em>Geomyces</em> sp. WNF-15A can produce high-quality red pigments (AGRP) with good prospects for the use in food and cosmetic area. However, efficient AGRP synthesis relies on low-temperature and thus limits its industrial development. Here genome sequencing and comparative analysis were performed on the wild-type versus to four mutants derived from natural mutagenesis and transposon insertion mutation. Eleven mutated genes were identified from 2309 SNPs and 256 Indels. A CRISPR-Cas9 gene-editing system was established for functional analysis of these genes. Deficiency of <em>scaffold1.t692</em> and <em>scaffold2.t704</em> with unknown functions highly improved AGRP synthesis at all tested temperatures. Of note, the two mutants produced comparable levels of AGRP at 20 °C to the wild-type at 14 °C. They also broke the normal-temperature limitation and effectively synthesized AGRP at 25 °C. Comparative metabolomic analysis revealed that deficiency of <em>scaffold1.t692</em> improved AGRP synthesis by regulation of global metabolic pathways especially downregulation of the competitive pathways. Knockout of key genes responsible for the differential metabolites confirmed the metabolomic results. This study shows new clues for cold-adaptive regulatory mechanism of polar fungi. It also provides references for exploitation and utilization of psychrotrophic fungal resources.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 842-852"},"PeriodicalIF":4.4,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24001005/pdfft?md5=c8452042e6caff66b2f219f2a7e2a9af&pid=1-s2.0-S2405805X24001005-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141732113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic increase in coproporphyrin III biosynthesis by mitochondrial compartmentalization in engineered Saccharomyces cerevisiae 在工程酿酒酵母中通过线粒体分区协同增加共卟啉 III 的生物合成
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-07-14 DOI: 10.1016/j.synbio.2024.07.001
Qidi Guo , Jiaqi Xu , Jiacun Li , Shuyan Tang , Yuhui Cheng , Bei Gao , Liang-Bin Xiong , Jie Xiong , Feng-Qing Wang , Dong-Zhi Wei
{"title":"Synergistic increase in coproporphyrin III biosynthesis by mitochondrial compartmentalization in engineered Saccharomyces cerevisiae","authors":"Qidi Guo ,&nbsp;Jiaqi Xu ,&nbsp;Jiacun Li ,&nbsp;Shuyan Tang ,&nbsp;Yuhui Cheng ,&nbsp;Bei Gao ,&nbsp;Liang-Bin Xiong ,&nbsp;Jie Xiong ,&nbsp;Feng-Qing Wang ,&nbsp;Dong-Zhi Wei","doi":"10.1016/j.synbio.2024.07.001","DOIUrl":"10.1016/j.synbio.2024.07.001","url":null,"abstract":"<div><p>Coproporphyrin III (CP III), a natural porphyrin derivative, has extensive applications in the biomedical and material industries. <em>S. cerevisiae</em> has previously been engineered to highly accumulate the CP III precursor 5-aminolevulinic acid (ALA) through the C4 pathway. In this study, a combination of cytoplasmic metabolic engineering and mitochondrial compartmentalization was used to enhance CP III production in <em>S. cerevisiae</em>. By integrating pathway genes into the chromosome, the CP III titer gradually increased to 32.5 ± 0.5 mg/L in shake flask cultivation. Nevertheless, increasing the copy number of pathway genes did not consistently enhance CP III synthesis. Hence, the partial synthesis pathway was compartmentalized in mitochondria to evaluate its effectiveness in increasing CP III production. Subsequently, by superimposing the mitochondrial compartmentalization strategy on cytoplasmic metabolic engineered strains, the CP III titer was increased to 64.3 ± 1.9 mg/L. Furthermore, augmenting antioxidant pathway genes to reduce reactive oxygen species (ROS) levels effectively improved the growth of engineered strains, resulting in a further increase in the CP III titer to 82.9 ± 1.4 mg/L. Fed-batch fermentations in a 5 L bioreactor achieved a titer of 402.8 ± 9.3 mg/L for CP III. This study provides a new perspective on engineered yeast for the microbial production of porphyrins.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 834-841"},"PeriodicalIF":4.4,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000991/pdfft?md5=5fa2900d55ebdd1243e8ea2c347b1c0f&pid=1-s2.0-S2405805X24000991-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141623980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cyanamide-inducible expression of homing nuclease I−SceI for selectable marker removal and promoter characterisation in Saccharomyces cerevisiae 氰胺诱导表达归巢核酸酶 I-SceI,用于在酿酒酵母中去除可选择标记和确定启动子特征
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-28 DOI: 10.1016/j.synbio.2024.06.009
Liam McDonnell , Samuel Evans , Zeyu Lu , Mitch Suchoronczak , Jonah Leighton , Eugene Ordeniza , Blake Ritchie , Nik Valado , Niamh Walsh , James Antoney , Chengqiang Wang , Carlos Horacio Luna-Flores , Colin Scott , Robert Speight , Claudia E. Vickers , Bingyin Peng
{"title":"Cyanamide-inducible expression of homing nuclease I−SceI for selectable marker removal and promoter characterisation in Saccharomyces cerevisiae","authors":"Liam McDonnell ,&nbsp;Samuel Evans ,&nbsp;Zeyu Lu ,&nbsp;Mitch Suchoronczak ,&nbsp;Jonah Leighton ,&nbsp;Eugene Ordeniza ,&nbsp;Blake Ritchie ,&nbsp;Nik Valado ,&nbsp;Niamh Walsh ,&nbsp;James Antoney ,&nbsp;Chengqiang Wang ,&nbsp;Carlos Horacio Luna-Flores ,&nbsp;Colin Scott ,&nbsp;Robert Speight ,&nbsp;Claudia E. Vickers ,&nbsp;Bingyin Peng","doi":"10.1016/j.synbio.2024.06.009","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.009","url":null,"abstract":"<div><p>In synthetic biology, microbial chassis including yeast <em>Saccharomyces cerevisiae</em> are iteratively engineered with increasing complexity and scale. Wet-lab genetic engineering tools are developed and optimised to facilitate strain construction but are often incompatible with each other due to shared regulatory elements, such as the galactose-inducible (<em>GAL</em>) promoter in <em>S. cerevisiae</em>. Here, we prototyped the cyanamide-induced <sup>I−</sup><em>Sce</em>I expression, which triggered double-strand DNA breaks (DSBs) for selectable marker removal. We further combined cyanamide-induced <sup>I−</sup><em>Sce</em>I-mediated DSB and maltose-induced MazF-mediated negative selection for plasmid-free <em>in situ</em> promoter substitution, which simplified the molecular cloning procedure for promoter characterisation. We then characterised three tetracycline-inducible promoters showing differential strength, a non-leaky β-estradiol-inducible promoter, cyanamide-inducible <em>DDI2</em> promoter, bidirectional <em>MAL32/MAL31</em> promoters, and five pairs of bidirectional <em>GAL1/GAL10</em> promoters. Overall, alternative regulatory controls for genome engineering tools can be developed to facilitate genomic engineering for synthetic biology and metabolic engineering applications.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 820-827"},"PeriodicalIF":4.4,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X2400098X/pdfft?md5=a13d7248a6edd9e6adb4e09b95a48e69&pid=1-s2.0-S2405805X2400098X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in stress-tolerance elements for microbial cell factories 微生物细胞工厂耐压元件的研究进展
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-28 DOI: 10.1016/j.synbio.2024.06.008
Zheyi Kuang , Xiaofang Yan , Yanfei Yuan , Ruiqi Wang , Haifan Zhu , Youyang Wang , Jianfeng Li , Jianwen Ye , Haitao Yue , Xiaofeng Yang
{"title":"Advances in stress-tolerance elements for microbial cell factories","authors":"Zheyi Kuang ,&nbsp;Xiaofang Yan ,&nbsp;Yanfei Yuan ,&nbsp;Ruiqi Wang ,&nbsp;Haifan Zhu ,&nbsp;Youyang Wang ,&nbsp;Jianfeng Li ,&nbsp;Jianwen Ye ,&nbsp;Haitao Yue ,&nbsp;Xiaofeng Yang","doi":"10.1016/j.synbio.2024.06.008","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.008","url":null,"abstract":"<div><p>Microorganisms, particularly extremophiles, have evolved multiple adaptation mechanisms to address diverse stress conditions during survival in unique environments. Their responses to environmental coercion decide not only survival in severe conditions but are also an essential factor determining bioproduction performance. The design of robust cell factories should take the balance of their growing and bioproduction into account. Thus, mining and redesigning stress-tolerance elements to optimize the performance of cell factories under various extreme conditions is necessary. Here, we reviewed several stress-tolerance elements, including acid-tolerant elements, saline-alkali-resistant elements, thermotolerant elements, antioxidant elements, and so on, providing potential materials for the construction of cell factories and the development of synthetic biology. Strategies for mining and redesigning stress-tolerance elements were also discussed. Moreover, several applications of stress-tolerance elements were provided, and perspectives and discussions for potential strategies for screening stress-tolerance elements were made.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 793-808"},"PeriodicalIF":4.4,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000978/pdfft?md5=9e21dff9414b79f288247d1c2878f9d9&pid=1-s2.0-S2405805X24000978-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced triacylglycerol metabolism contributes to the efficient biosynthesis of spinosad in Saccharopolyspora spinosa 三酰甘油新陈代谢的增强促进了刺葡萄孢中刺槐皂苷的高效生物合成
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-25 DOI: 10.1016/j.synbio.2024.06.007
Li Cao, Yangchun Liu, Lin Sun, Zirong Zhu, Danlu Yang, Ziyuan Xia, Duo Jin, Zirui Dai, Jie Rang, Liqiu Xia
{"title":"Enhanced triacylglycerol metabolism contributes to the efficient biosynthesis of spinosad in Saccharopolyspora spinosa","authors":"Li Cao,&nbsp;Yangchun Liu,&nbsp;Lin Sun,&nbsp;Zirong Zhu,&nbsp;Danlu Yang,&nbsp;Ziyuan Xia,&nbsp;Duo Jin,&nbsp;Zirui Dai,&nbsp;Jie Rang,&nbsp;Liqiu Xia","doi":"10.1016/j.synbio.2024.06.007","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.007","url":null,"abstract":"<div><p>Triacylglycerol (TAG) is crucial for antibiotic biosynthesis derived from <em>Streptomyces</em>, as it serves as an important carbon source. In this study, the supplementation of exogenous TAG led to a 3.92-fold augmentation in spinosad production. The impact of exogenous TAG on the metabolic network of <em>Saccharopolyspora spinosa</em> were deeply analyzed through comparative proteomics. To optimize TAG metabolism and enhance spinosad biosynthesis, the lipase-encoding genes <em>lip</em>886 and <em>lip</em>385 were overexpressed or co-expressed. The results shown that the yield of spinosad was increased by 0.8-fold and 0.4-fold when <em>lip</em>886 and <em>lip</em>385 genes were overexpressed, respectively. Synergistic co-expression of these genes resulted in a 2.29-fold increase in the yield of spinosad. Remarkably, the combined overexpression of <em>lip</em>886 and <em>lip</em>385 in the presence of exogenous TAG elevated spinosad yields by 5.5-fold, led to a drastic increase in spinosad production from 0.036 g/L to 0.234 g/L. This study underscores the modification of intracellular concentrations of free fatty acids (FFAs), short-chain acyl-CoAs, ATP, and NADPH as mechanisms by which exogenous TAG modulates spinosad biosynthesis. Overall, the findings validate the enhancement of TAG catabolism as a beneficial strategy for optimizing spinosad production and provide foundational insights for engineering secondary metabolite biosynthesis pathways in another <em>Streptomyces</em>.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 809-819"},"PeriodicalIF":4.4,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000966/pdfft?md5=c7e671fa9dfff8518fbfe866dcecef77&pid=1-s2.0-S2405805X24000966-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141542946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A systematic discussion and comparison of the construction methods of synthetic microbial community 系统讨论和比较合成微生物群落的构建方法
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-20 DOI: 10.1016/j.synbio.2024.06.006
Chenglong Li, Yanfeng Han, Xiao Zou, Xueqian Zhang, Qingsong Ran, Chunbo Dong
{"title":"A systematic discussion and comparison of the construction methods of synthetic microbial community","authors":"Chenglong Li,&nbsp;Yanfeng Han,&nbsp;Xiao Zou,&nbsp;Xueqian Zhang,&nbsp;Qingsong Ran,&nbsp;Chunbo Dong","doi":"10.1016/j.synbio.2024.06.006","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.006","url":null,"abstract":"<div><p>Synthetic microbial community has widely concerned in the fields of agriculture, food and environment over the past few years. However, there is little consensus on the method to synthetic microbial community from construction to functional verification. Here, we review the concept, characteristics, history and applications of synthetic microbial community, summarizing several methods for synthetic microbial community construction, such as isolation culture, core microbiome mining, automated design, and gene editing. In addition, we also systematically summarized the design concepts, technological thresholds, and applicable scenarios of various construction methods, and highlighted their advantages and limitations. Ultimately, this review provides four efficient, detailed, easy-to-understand and -follow steps for synthetic microbial community construction, with major implications for agricultural practices, food production, and environmental governance.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 775-783"},"PeriodicalIF":4.4,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000954/pdfft?md5=1ce7685783df1d9189ef567863d52d18&pid=1-s2.0-S2405805X24000954-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening and characterization of integration sites based on CRISPR-Cpf1 in Pichia pastoris 在 Pichia pastoris 中筛选和鉴定基于 CRISPR-Cpf1 的整合位点
IF 4.8 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-18 DOI: 10.1016/j.synbio.2024.06.002
Shupeng Ruan , Yuxin Yang , Xinying Zhang , Guanjuan Luo , Ying Lin , Shuli Liang
{"title":"Screening and characterization of integration sites based on CRISPR-Cpf1 in Pichia pastoris","authors":"Shupeng Ruan ,&nbsp;Yuxin Yang ,&nbsp;Xinying Zhang ,&nbsp;Guanjuan Luo ,&nbsp;Ying Lin ,&nbsp;Shuli Liang","doi":"10.1016/j.synbio.2024.06.002","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.002","url":null,"abstract":"<div><p><em>Pichia pastoris</em>, a methylotrophic yeast, can utilize methanol as a carbon source and energy source to synthesize high-value chemicals, and is an ideal host for biomanufacturing. Constructing the <em>P</em>. <em>pastoris</em> cell factory is somewhat impeded due to the absence of genetic tools for manipulating multi-gene biosynthetic pathways. To broaden its application in the field of metabolic engineering, this study identified and screened 15 novel integration sites in <em>P. pastoris</em> using CRISPR-Cpf1 genome editing technology, with EGFP serving the reporter protein. These integration sites have integration efficiencies of 10–100 % and varying expression strengths, which allow for selection based on the expression levels of genes as needed. Additionally, these integrated sites are applied in the heterologous biosynthesis of <em>P. pastoris</em>, such as the astaxanthin biosynthetic pathway and the carbon dioxide fixation pathway of the Calvin-Benson-Bassham (CBB) cycle. During the three-site integration process, the 8 genes of the CBB cycle were integrated into the genome of <em>P. pastoris</em>. This indicates the potential of these integration sites for integrating large fragments and suggests their successful application in metabolic engineering of <em>P. pastoris</em>. This may lead to improved efficiency of genetic engineering in <em>P. pastoris</em>.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 759-765"},"PeriodicalIF":4.8,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000917/pdfft?md5=bf68a535595642f9f0268209b4e5ebfb&pid=1-s2.0-S2405805X24000917-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141429022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening of ent-copalyl diphosphate synthase and metabolic engineering to achieve de novo biosynthesis of ent-copalol in Saccharomyces cerevisiae 筛选ent-copalyl二磷酸合成酶和代谢工程,在酿酒酵母中实现ent-copalol的从头生物合成
IF 4.4 2区 生物学
Synthetic and Systems Biotechnology Pub Date : 2024-06-18 DOI: 10.1016/j.synbio.2024.06.005
Shan Li , Shuangshuang Luo , Xinran Yin , Xingying Zhao , Xuyang Wang , Song Gao , Sha Xu , Jian Lu , Jingwen Zhou
{"title":"Screening of ent-copalyl diphosphate synthase and metabolic engineering to achieve de novo biosynthesis of ent-copalol in Saccharomyces cerevisiae","authors":"Shan Li ,&nbsp;Shuangshuang Luo ,&nbsp;Xinran Yin ,&nbsp;Xingying Zhao ,&nbsp;Xuyang Wang ,&nbsp;Song Gao ,&nbsp;Sha Xu ,&nbsp;Jian Lu ,&nbsp;Jingwen Zhou","doi":"10.1016/j.synbio.2024.06.005","DOIUrl":"https://doi.org/10.1016/j.synbio.2024.06.005","url":null,"abstract":"<div><p>The diterpene <em>ent</em>-copalol is an important precursor to the synthesis of andrographolide and is found only in green chiretta <em>(Andrographis paniculata)</em>. <em>De novo</em> biosynthesis of <em>ent</em>-copalol has not been reported, because the catalytic activity of <em>ent</em>-copalyl diphosphate synthase (CPS) is very low in microorganisms. In order to achieve the biosynthesis of <em>ent</em>-copalol, <em>Saccharomyces cerevisiae</em> was selected as the chassis strain, because its endogenous mevalonate pathway and dephosphorylases could provide natural promotion for the synthesis of <em>ent</em>-copalol. The strain capable of synthesizing diterpene geranylgeranyl pyrophosphate was constructed by strengthening the mevalonate pathway genes and weakening the competing pathway. Five full-length <em>Ap</em>CPSs were screened by transcriptome sequencing of <em>A. paniculata</em> and <em>Ap</em>CPS2 had the best activity and produced <em>ent</em>-CPP exclusively. The peak area of <em>ent</em>-copalol was increased after the <em>Ap</em>CPS2 saturation mutation and its configuration was determined by NMR and ESI-MS detection. By appropriately optimizing acetyl-CoA supply and fusion-expressing key enzymes, 35.6 mg/L <em>ent</em>-copalol was generated. In this study, <em>de novo</em> biosynthesis and identification of <em>ent</em>-copalol were achieved and the highest titer ever reported. It provides a platform strain for the further pathway analysis of andrographolide and derivatives and provides a reference for the synthesis of other pharmaceutical intermediates.</p></div>","PeriodicalId":22148,"journal":{"name":"Synthetic and Systems Biotechnology","volume":"9 4","pages":"Pages 784-792"},"PeriodicalIF":4.4,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405805X24000942/pdfft?md5=d092e35682132d8845904ea2be622283&pid=1-s2.0-S2405805X24000942-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141438591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信