微生物学

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    现刊
    In vitro Nitrate Reductase Activity Assay of Mycolicibacterium smegmatis Crude Extract
    耻垢分枝杆菌粗提物硝酸还原酶活性的体外测定
    作者:Wei Tan, Zhi-Hui Shao and Guo-Ping Zhao日期:07/20/2021,浏览量:90,Q&A: 0

    Nitrate is one of the major inorganic nitrogen sources for microorganisms. Many bacterial and archaeal lineages can express cytoplasmic assimilatory nitrate reductase (NAS), which catalyzes the rate-limiting reduction of nitrate to nitrite in the

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    In vitro Nitrate Reductase Activity Assay of Mycolicibacterium smegmatis Crude Extract
    耻垢分枝杆菌粗提物硝酸还原酶活性的体外测定
    作者:Wei Tan, Zhi-Hui Shao and Guo-Ping Zhao日期:07/20/2021,浏览量:90,Q&A: 0
    [Abstract]

    Nitrate is one of the major inorganic nitrogen sources for microorganisms. Many bacterial and archaeal lineages can express cytoplasmic assimilatory nitrate reductase (NAS), which catalyzes the rate-limiting reduction of nitrate to nitrite in the nitrate assimilation pathway. Here, we present a detailed protocol for measuring in vitro nitrate

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    Visualization of Host Cell Kinase Activation by Viral Proteins Using GFP Fluorescence Complementation and Immunofluorescence Microscopy
    利用GFP荧光互补和免疫荧光显微镜观察病毒蛋白对宿主细胞激酶的激活
    作者:Sherry T. Shu, Wing Fai Li and Thomas E. Smithgall日期:07/05/2021,浏览量:1378,Q&A: 0
    [Abstract]

    Non-receptor protein-tyrosine kinases regulate cellular responses to many external signals and are important drug discovery targets for cancer and infectious diseases. While many assays exist for the assessment of kinase activity in vitro, methods that report changes in tyrosine kinase activity in single cells have the potential to provide

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    Production, quantification, and infection of Amazonian Phlebovirus (Bunyaviridae)
    亚马孙流域白蛉病毒属(布尼亚病毒科)的产生、定量和感染
    作者:Carolina Torturella Rath, Aislan de Carvalho Vivarini, Renata M. Pereira and Ulisses Gazos Lopes日期:07/05/2021,浏览量:1120,Q&A: 0
    [Abstract]

    Phlebotomine vectors, sand flies of the order Diptera, are known to transmit Leishmania parasites as well as RNA viruses (arboviruses) to humans. The arbovirus, Icoaraci Phlebovirus (BeAN 24262 - ICOV), used in this study was isolated from Nectomys rodents, a mammalian species that is the same natural sylvatic reservoir of Leishmania (Leishmania)

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    Yeast Lipid Extraction and Analysis by HPTLC
    酵母脂质的HPTLC提取及分析
    作者:Dan Li, Zheng-Tan Zhang, Cheng-Wen He and Zhiping Xie日期:07/05/2021,浏览量:822,Q&A: 0
    [Abstract]

    The diversity of lipid structures, properties, and combinations in biological tissues makes their extraction and analysis an experimental challenge. Accordingly, even for one of the simplest single-cellular fungi, the budding yeast (Saccharomyces cerevisiae), numerous extraction and analysis protocols have been developed to separate and quantitate

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    PCR-mediated One-day Synthesis of Guide RNA for the CRISPR/Cas9 System
    CRISPR/Cas9系统的PCR介导的一日合成向导RNA
    作者:Naim Hassan, Farhana Easmin, Keisuke Ekino and Satoshi Harashima日期:07/05/2021,浏览量:1087,Q&A: 0
    [Abstract]

    Nowadays, CRISPR (clustered regularly interspaced short palindromic repeats) and the CRISPR-associated protein (Cas9) system play a major role in genome editing. To target the desired sequence of the genome successfully, guide RNA (gRNA) is indispensable for the CRISPR/Cas9 system. To express gRNA, a plasmid expressing the gRNA sequence is

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    Fluorescence-based Heme Quantitation in Toxoplasma Gondii
    基于荧光的弓形虫血红素定量
    作者:Amy Bergmann and Zhicheng Dou日期:06/20/2021,浏览量:860,Q&A: 0
    [Abstract]

    Toxoplasma gondii is a highly prevalent protozoan pathogen throughout the world. As a eukaryotic intracellular pathogen, Toxoplasma ingests nutrients from host cells to support its intracellular growth. The parasites also encode full or partial metabolic pathways for the biosynthesis of certain nutrients, such as heme. Heme is an essential

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    Transcriptional Run-on: Measuring Nascent Transcription at Specific Genomic Sites in Yeast
    连缀转录:测定酵母特定基因组位点的新生转录
    作者:Victoria Begley, Lola de Miguel-Jiménez and Sebastián Chávez日期:06/20/2021,浏览量:738,Q&A: 0
    [Abstract]

    DNA transcription by RNA polymerases has always interested the scientific community as it is one of the most important processes involved in genome expression. This has led scientists to come up with different protocols allowing analysis of this process in specific locations across the genome by quantitating the amount of RNA polymerases

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    Sex-specific Separation of Plasmodium falciparum Gametocyte Populations
    恶性疟原虫配子细胞群体的性别特异性分离
    作者:Melanie C. Ridgway, Daniela Cihalova and Alexander G. Maier日期:06/05/2021,浏览量:1075,Q&A: 0
    [Abstract]

    Plasmodium falciparum is a unicellular eukaryotic parasite that causes malaria in humans. The parasite is spread by Anopheles mosquitoes after ingestion of sexual stage parasites known as gametocytes. Malaria transmission depends on parasites switching from the disease-causing asexual blood forms to male and female gametocytes. The current

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    Tracking the Subcellular Localization of Surface Proteins in Staphylococcus aureus by Immunofluorescence Microscopy
    用免疫荧光显微镜追踪金黄色葡萄球菌表面蛋白的亚细胞定位
    作者:Salvatore J. Scaffidi, Mac A. Shebes and Wenqi Yu日期:05/20/2021,浏览量:2969,Q&A: 0
    [Abstract]

    Surface proteins of Staphylococcus aureus and other Gram-positive bacteria play essential roles in bacterial colonization and host-microbe interactions. Surface protein precursors containing a YSIRK/GXXS signal peptide are translocated across the septal membrane at mid-cell, anchored to the cell wall peptidoglycan at the cross-wall compartment,

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    Parasitemia Evaluation in Mice Infected with Schistosoma mansoni
    曼氏血吸虫感染小鼠的寄生虫病评估
    作者:Naiara Clemente Tavares and Marina Moraes Mourão日期:05/20/2021,浏览量:1953,Q&A: 0
    [Abstract]

    Schistosomiasis is a neglected tropical disease. Its treatment relies on the use of a single drug, praziquantel. Due to treatment limitations, an alternative for schistosomiasis chemotherapy is required; thus, a better understanding of parasite biology and host-parasite interactions is valuable to aid the identification of new anti-Schistosoma

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