Molecular Biology

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    Protocols in Current Issue
    Safe DNA-extraction Protocol Suitable for Studying Tree-fungus Interactions
    Authors:  Susanna Keriö, Eeva Terhonen and Jared M. LeBoldus, date: 06/05/2020, view: 10, Q&A: 0
    [Abstract] We present a safe and low-cost method suitable for DNA extraction from mycelium and tree tissue samples. After sample preparation, the extraction takes about 60 min. Method performance was tested by extracting DNA from various tree tissue samples and from mycelium grown on solid and liquid media. DNA was extracted from juvenile and mature host ...
    Modeling NOTCH1 driven T-cell Acute Lymphoblastic Leukemia in Mice
    Authors:  Agnieszka A. Wendorff and Adolfo A. Ferrando, date: 05/20/2020, view: 446, Q&A: 0
    [Abstract] T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological malignancy that arises from transformation of T-cell primed hematopoietic progenitors. Although T-ALL is a heterogenous and molecularly complex disease, more than 65% of T-ALL patients carry activating mutations in the NOTCH1 gene. The majority of T-ALL–associated ...
    Evaluation of the Efficiency of Genome Editing Tools by a Frameshift Fluorescence Protein Reporter
    Authors:  Balaji T. Moorthy, Akhilesh Kumar, Lauren X. Lotenfoe and Fangliang Zhang, date: 05/20/2020, view: 568, Q&A: 0
    [Abstract] In the last decade, genome editing has been the center of attention as a novel tool for mechanistic investigations and for potential clinical applications. Various genome editing tools like meganucleases, zinc finger nucleases (ZFNs), transcription activator-like effector-based nucleases (TALEN), and the clustered regularly interspaced short ...
    Preparation of a Bacteriophage T4-based Prokaryotic-eukaryotic Hybrid Viral Vector for Delivery of Large Cargos of Genes and Proteins into Human Cells
    Authors:  Jingen Zhu, Pan Tao, Marthandan Mahalingam and Venigalla B. Rao, date: 04/05/2020, view: 362, Q&A: 0
    [Abstract] A viral vector that can safely and efficiently deliver large and diverse molecular cargos into cells is the holy grail of curing many human diseases. Adeno-associated virus (AAV) has been extensively used but has a very small capacity. The prokaryotic virus T4 has a large capacity but lacks natural mechanisms to enter mammalian cells. Here, we ...
    Conjugation Protocol Optimised for Roseburia inulinivorans and Eubacterium rectale
    Authors:  Paul O. Sheridan, Jennifer C. Martin and Karen P. Scott, date: 04/05/2020, view: 292, Q&A: 0
    [Abstract] Roseburia and Eubacterium species of the human gut microbiota play an important role in the maintaince of human health, partly by producing butyrate, the main energy source of our colonic epithelial cells. However, our knowledge of the biochemistry and physiology of these bacteria has been limited by a lack of genetic ...
    Assembly of Genetic Circuits with the Mammalian ToolKit
    Authors:  João P. Fonseca, Alain R Bonny, Jason Town and Hana El-Samad, date: 03/05/2020, view: 703, Q&A: 0
    [Abstract] The ability to rapidly assemble and prototype cellular circuits is vital for biological research and its applications in biotechnology and medicine. The Mammalian ToolKit (MTK) is a Golden Gate-based cloning toolkit for fast, reproducible and versatile assembly of large DNA vectors and their implementation in mammalian models. The MTK consists of ...
    Construction of Antisense RNA-mediated Gene Knock-down Strains in the Cyanobacterium Anabaena sp. PCC 7120
    Authors:  Amit Srivastava, Anand Ballal, Karl Forchhammer and Anil Kumar Tripathi, date: 02/20/2020, view: 702, Q&A: 0
    [Abstract] Anabaena sp. PCC 7120 (hereafter Anabaena) is a model cyanobacterium to study nitrogen fixation, cellular differentiation and several other key biological functions that are analogous in plants. As with any other organism, many genes in Anabaena encode an essential life function and hence cannot be deleted, causing a ...
    ChIP-Seq from Limited Starting Material of K562 Cells and Drosophila Neuroblasts Using Tagmentation Assisted Fragmentation Approach
    Authors:  Junaid Akhtar, Piyush More and Steffen Albrecht, date: 02/20/2020, view: 501, Q&A: 0
    [Abstract] Chromatin immunoprecipitation is extensively used to investigate the epigenetic profile and transcription factor binding sites in the genome. However, when the starting material is limited, the conventional ChIP-Seq approach cannot be implemented. This protocol describes a method that can be used to generate the chromatin profiles from as low as ...
    Transcervical Mouse Infections with Chlamydia trachomatis and Determination of Bacterial Burden
    Authors:  Karthika Rajeeve and Rajeeve Sivadasan, date: 02/05/2020, view: 820, Q&A: 0
    [Abstract] Chlamydia trachomatis is an obligate human pathogen. It infects the genital tract of humans ascending into the fallopian tube, exacerbated by chronic pelvic pain, pelvic inflammatory disease, and fallopian tube scaring resulting in infertility and other malignancies. The major hurdle in controlling chlamydial spread is that the ...
    Measurement of the Promoter Activity in Escherichia coli by Using a Luciferase Reporter
    Authors:  Yuki Yamanaka, Hiroki Watanabe, Erika Yamauchi, Yukari Miyake and Kaneyoshi Yamamoto, date: 01/20/2020, view: 606, Q&A: 0
    [Abstract] The reporter system is widely used technique for measuring promoter activity in bacterial cells. Until now, a number of reporter system have been developed, but the bioluminescent reporter constructed from the bacterial luciferase genes is one of the useful systems for measuring in vivo dynamics of gene expression. The introduced ...



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