Molecular Biology

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    Protocols in Current Issue
    Agrobacterium-mediated Transformation of Sweet Basil (Ocimum basilicum)
    Authors:  Natasha Navet and Miaoying Tian, date: 11/20/2020, view: 490, Q&A: 1

    Sweet basil (Ocimum basilicum) is a popular herb with high economic value and is currently threatened by a severe oomycete disease. An efficient transformation method is a prerequisite for gene functional analysis to accelerate molecular breeding

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    Agrobacterium-mediated Transformation of Sweet Basil (Ocimum basilicum)
    Authors:  Natasha Navet and Miaoying Tian, date: 11/20/2020, view: 490, Q&A: 1
    [Abstract]

    Sweet basil (Ocimum basilicum) is a popular herb with high economic value and is currently threatened by a severe oomycete disease. An efficient transformation method is a prerequisite for gene functional analysis to accelerate molecular breeding and deploy effective disease management strategies, and breeding through genetic engineering. Here we

    ...
    Candida albicans Culture, Cell Harvesting, and Total RNA Extraction
    Authors:  Max V. Cravener and Aaron P. Mitchell, date: 11/05/2020, view: 502, Q&A: 0
    [Abstract]

    Transcriptional analysis has become a cornerstone of biological research, and with the advent of cheaper and more efficient sequencing technology over the last decade, there exists a need for high-yield and efficient RNA extraction techniques. Fungi such as the human pathogen Candida albicans present a unique obstacle to RNA purification in the

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    Colorimetric RT-LAMP Methods to Detect Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2)
    [Abstract] Standard diagnostic methods of Coronavirus Disease 2019 (COVID-19) rely on RT-qPCR technique which have limited point-of-care test (POCT) potential due to necessity of dedicated equipment and specialized personnel. LAMP, an isothermal nucleic acid amplification test (NAAT), is a promising technique that may substitute RT-qPCR for POCT of genomic ...
    Advances in Proximity Ligation in situ Hybridization (PLISH)
    Authors:  Monica Nagendran, Adam M Andruska, Pehr B Harbury and Tushar J Desai, date: 11/05/2020, view: 690, Q&A: 0
    [Abstract] Understanding tissues in the context of development, maintenance and disease requires determining the molecular profiles of individual cells within their native in vivo spatial context. We developed a Proximity Ligation in situ Hybridization technology (PLISH) that enables quantitative measurement of single cell gene expression ...
    DigiTAG–a RNA Sequencing Approach to Analyze Transcriptomes of Rare Cell Populations in Drosophila melanogaster
    Authors:  Lisa Landskron, Francois Bonnay, Thomas R. Burkard and Jürgen A. Knoblich, date: 11/05/2020, view: 517, Q&A: 0
    [Abstract]

    Cell-type specific transcriptional programs underlie the development and maintenance of organs. Not only distinct cell types within a tissue, even cells with supposedly identical cell fates show a high degree of transcriptional heterogeneity. Inevitable, low cell numbers are a major hurdle to study transcriptomes of pure cell populations. Here we

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    Long-distance Transport in Bacterial Swarms Revealed by Single Nanoparticle Tracking
    Authors:  Jingjing Feng and Yan He, date: 11/05/2020, view: 305, Q&A: 0
    [Abstract]

    During swarming, high density flagella-driven bacteria migrate collectively in a swirling pattern on wet agar surfaces, immersed in a thin viscous fluid layer called “swarm fluid”. Though the fluid environment has essential role in the emergence of swarming behavior, the microscopic mechanisms of it in mediating the cooperation of

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    Determination of Microtubule Lattice Parameters from Cryo-electron Microscope Images Using TubuleJ
    Authors:  Siou Ku, Cédric Messaoudi, Charlotte Guyomar, Charles Kervrann and Denis Chrétien, date: 11/05/2020, view: 376, Q&A: 0
    [Abstract]

    The α-β tubulin heterodimer undergoes subtle conformational changes during microtubule assembly. These can be modulated by external factors, whose effects on microtubule structure can be characterized on 2D views obtained by cryo-electron microscopy. Analysis of microtubule images is facilitated if they are straight enough to interpret

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    Reference-free Association Mapping from Sequencing Reads Using k-mers
    Authors:  Zakaria Mehrab, Jaiaid Mobin, Ibrahim Asadullah Tahmid, Lior Pachter and Atif Rahman, date: 11/05/2020, view: 432, Q&A: 0
    [Abstract] Association mapping is the process of linking phenotypes with genotypes. In genome wide association studies (GWAS), individuals are first genotyped using microarrays or by aligning sequenced reads to reference genomes. However, both these approaches rely on reference genomes which limits their application to organisms with no or incomplete ...
    Attachment of a 32P-phosphate to the 3′ Terminus of a DNA Oligonucleotide
    Authors:  Joshua C. Cofsky and Jennifer A. Doudna, date: 10/20/2020, view: 377, Q&A: 0
    [Abstract] Biochemical investigations into DNA-binding and DNA-cutting proteins often benefit from the specific attachment of a radioactive label to one of the two DNA termini. In many cases, it is essential to perform two versions of the same experiment: one with the 5′ DNA end labeled and one with the 3′ DNA end labeled. While homogeneous 5′-radiolabeling ...
    A Protocol for Simple, Rapid, and Direct Detection of SARS-CoV-2 from clinical samples, using Reverse Transcribed Loop-Mediated Isothermal Amplification (RT-LAMP)
    [Abstract] SARS-CoV-2 has quickly spread all around the globe causing illness and wide damages. Most countries were unprepared for such a rapid spread and crisis. This led to various strategies for effective control of the new pandemic. A key aspect in all countries was to effectively test the population for the virus. Most countries chose a lockdown ...



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