生物科学

分类

    现刊
    An Inexpensive Imaging Platform to Record and Quantitate Bacterial Swarming
    记录和定量细菌群集的廉价成像平台
    作者:Weijie Chen, Sridhar Mani and Jay X. Tang日期:09/20/2021,浏览量:314,Q&A: 0

    Bacterial swarming refers to a rapid spread, with coordinated motion, of flagellated bacteria on a semi-solid surface (Harshey, 2003). There has been extensive study on this particular mode of motility because of its interesting biological and

    ...
    Inter-species Transplantation of Blastocysts between Medaka and Zebrafish
    青鳉与斑马鱼间囊胚的种间移植
    作者:Jana F. Fuhrmann, Jasmin Onistschenko and Lázaro Centanin日期:09/20/2021,浏览量:461,Q&A: 0

    Transplantation of blastocysts from a donor to a host blastula constitutes a powerful experimental tool to tackle major developmental biology questions. The technique is widely implemented in diverse biological models including teleost fish, where

    ...
    Intrathoracic Inoculation of Zika Virus in Aedes aegypti
    埃及伊蚊胸内接种寨卡病毒
    作者:Irma Sanchez-Vargas, Adeline E. Williams, Alexander W.E. Franz and Ken E. Olson日期:09/20/2021,浏览量:233,Q&A: 0

    Aedes aegypti mosquitoes are the main vectors of many medically relevant arthropod-borne (arbo) viruses, including Zika (ZIKV), dengue (DENV), and yellow fever (YFV). Vector competence studies with Ae. aegypti often involve challenging mosquitoes

    ...
    A Co-purification Method for Efficient Production and Src Kinase-mediated Phosphorylation of Aplysia Cortactin
    一种高效生产和Src激酶介导的马海兔磷酸化的共纯化方法
    作者:Sherlene L. Brown, Yuan Ren, Daniel M. Suter and Seema Mattoo日期:09/20/2021,浏览量:286,Q&A: 0

    Cortactin is an actin-binding protein that regulates processes like cell migration, endocytosis, and tumor cell metastasis. Although cortactin is associated with actin-cytoskeletal dynamics in non-neuronal cells and cell-free systems, the exact

    ...
    Glucose Starvation, Magnesium Ion Starvation, and Bile Stress Assays
    葡萄糖饥饿、镁离子饥饿和胆汁应激分析
    作者:Aryashree Arunima and Mrutyunjay Suar日期:09/20/2021,浏览量:318,Q&A: 0

    Salmonella enterica serovar Enteritidis (S. Enteritidis) is a leading causative pathogen for food-borne gastroenteritis. During its course of infection, it confronts myriads of physiological barriers inside the host, such as nutrient deprivation,

    ...
    An Inexpensive Imaging Platform to Record and Quantitate Bacterial Swarming
    记录和定量细菌群集的廉价成像平台
    作者:Weijie Chen, Sridhar Mani and Jay X. Tang日期:09/20/2021,浏览量:314,Q&A: 0
    [Abstract]

    Bacterial swarming refers to a rapid spread, with coordinated motion, of flagellated bacteria on a semi-solid surface (Harshey, 2003). There has been extensive study on this particular mode of motility because of its interesting biological and physical relevance, e.g., enhanced antibiotic resistance (Kearns, 2010) and turbulent collective motion

    ...
    Inter-species Transplantation of Blastocysts between Medaka and Zebrafish
    青鳉与斑马鱼间囊胚的种间移植
    作者:Jana F. Fuhrmann, Jasmin Onistschenko and Lázaro Centanin日期:09/20/2021,浏览量:461,Q&A: 0
    [Abstract]

    Transplantation of blastocysts from a donor to a host blastula constitutes a powerful experimental tool to tackle major developmental biology questions. The technique is widely implemented in diverse biological models including teleost fish, where it is typically used for intra-species blastula transplantations – i.e., labeled blastocysts

    ...
    Intrathoracic Inoculation of Zika Virus in Aedes aegypti
    埃及伊蚊胸内接种寨卡病毒
    作者:Irma Sanchez-Vargas, Adeline E. Williams, Alexander W.E. Franz and Ken E. Olson日期:09/20/2021,浏览量:233,Q&A: 0
    [Abstract]

    Aedes aegypti mosquitoes are the main vectors of many medically relevant arthropod-borne (arbo) viruses, including Zika (ZIKV), dengue (DENV), and yellow fever (YFV). Vector competence studies with Ae. aegypti often involve challenging mosquitoes with an artificial bloodmeal containing virus and later quantifying viral titer or infectious

    ...
    A Co-purification Method for Efficient Production and Src Kinase-mediated Phosphorylation of Aplysia Cortactin
    一种高效生产和Src激酶介导的马海兔磷酸化的共纯化方法
    作者:Sherlene L. Brown, Yuan Ren, Daniel M. Suter and Seema Mattoo日期:09/20/2021,浏览量:286,Q&A: 0
    [Abstract]

    Cortactin is an actin-binding protein that regulates processes like cell migration, endocytosis, and tumor cell metastasis. Although cortactin is associated with actin-cytoskeletal dynamics in non-neuronal cells and cell-free systems, the exact mechanisms underlying its fundamental roles in neuronal growth cones are not fully explored. Recent

    ...
    Glucose Starvation, Magnesium Ion Starvation, and Bile Stress Assays
    葡萄糖饥饿、镁离子饥饿和胆汁应激分析
    作者:Aryashree Arunima and Mrutyunjay Suar日期:09/20/2021,浏览量:318,Q&A: 0
    [Abstract]

    Salmonella enterica serovar Enteritidis (S. Enteritidis) is a leading causative pathogen for food-borne gastroenteritis. During its course of infection, it confronts myriads of physiological barriers inside the host, such as nutrient deprivation, low micronutrient availability, and toxicity from bile salts, to promote bacterial survival and

    ...
    Kinetic Analysis of a Protein-protein Complex to Determine its Dissociation Constant (KD) and the Effective Concentration (EC50) of an Interplaying Effector Molecule Using Bio-layer Interferometry
    蛋白质-蛋白质复合物的动力学分析,以确定其电离常数 (KD) 和使用生物层干涉法相互作用的效应分子的有效浓度 (EC50)
    作者:Tim Orthwein, Luciano F. Huergo, Karl Forchhammer and Khaled A. Selim日期:09/05/2021,浏览量:1019,Q&A: 0
    [Abstract]

    Biolayer interferometry (BLI) is an emerging analytical tool that allows the study of protein complexes in real time to determine protein complex kinetic parameters. This article describes a protocol to determine the KD of a protein complex using a 6×His tagged fusion protein as bait immobilized on the NTA sensor chip of the

    ...
    Isolation of Myofibres and Culture of Muscle Stem Cells from Adult Zebrafish
    成年斑马鱼肌纤维的分离和肌肉干细胞的培养
    作者:Massimo Ganassi, Peter S. Zammit and Simon M. Hughes日期:09/05/2021,浏览量:1255,Q&A: 0
    [Abstract]

    Skeletal muscles generate force throughout life and require maintenance and repair to ensure efficiency. The population of resident muscle stem cells (MuSCs), termed satellite cells, dwells beneath the basal lamina of adult myofibres and contributes to both muscle growth and regeneration. Upon exposure to activating signals, MuSCs proliferate to

    ...
    Cytoduction and Plasmiduction in Yeast
    酵母细胞诱导中的细胞诱导和质粒诱导
    作者:Jane E. Dorweiler and Anita L. Manogaran日期:09/05/2021,浏览量:746,Q&A: 0
    [Abstract]

    Cytoduction, and a related technique referred to as plasmiduction, have facilitated substantial advancements in the field of yeast prion biology by providing a streamlined method of transferring prions from one yeast strain to another. Prions are cytoplasmic elements consisting of aggregated misfolded proteins, and as such, they exhibit

    ...
    Isolation and Characterization of Membrane Vesicles from Lactobacillus Species
    乳酸杆菌属膜囊泡中的分离和特性研究
    作者:Julie C. Caruana, Scott N. Dean and Scott A. Walper日期:09/05/2021,浏览量:809,Q&A: 0
    [Abstract]

    Throughout their life cycle, bacteria shed portions of their outermost membrane comprised of proteins, lipids, and a diversity of other biomolecules. These biological nanoparticles have been shown to have a range of highly diverse biological activities, including pathogenesis, community regulation, and cellular defense (among others). In recent

    ...
    Using Atomic Force Microscopy to Study the Real Time Dynamics of DNA Unwinding by Mitochondrial Twinkle Helicase
    使用原子力显微镜研究线粒体闪烁解旋酶对DNA解旋的实时动力学
    作者:Parminder Kaur, Hai Pan, Matthew J. Longley, William C. Copeland and Hong Wang日期:09/05/2021,浏览量:797,Q&A: 0
    [Abstract]

    Understanding the structure and dynamics of DNA-protein interactions during DNA replication is crucial for elucidating the origins of disorders arising from its dysfunction. In this study, we employed Atomic Force Microscopy as a single-molecule imaging tool to examine the mitochondrial DNA helicase Twinkle and its interactions with DNA. We used

    ...