Molecular Biology


    Protocols in Current Issue
    Gene Mapping by RNA-sequencing: A Direct Way to Characterize Genes and Gene Expression through Targeted Queries of Large Public Databases
    Author:  Peter Rotwein, date: 01/05/2019, view: 205, Q&A: 0
    [Abstract] Recent advances in genomics present new opportunities for enhancing knowledge about gene regulation and function across a wide spectrum of organisms and species. Understanding and evaluating this information at the individual gene level is challenging, and not only requires extracting, collating and interpreting data from public genetic ...
    Variable Dose Analysis: A Novel High-throughput RNAi Screening Method for Drosophila Cells
    Authors:  Katarzyna Sierzputowska, Chris R. Baxter and Benjamin E. Housden, date: 12/20/2018, view: 319, Q&A: 0
    [Abstract] Genetic screens are a powerful approach to identify previously uncharacterized genes involved in specific biological processes. Several technologies have been developed for high-throughput screens using reagents such as RNAi or CRISPR, and each approach is associated with specific advantages and disadvantages. Variable Dose Analysis (VDA), is an ...
    Single-molecule Fluorescence in situ Hybridization (smFISH) for RNA Detection in Adherent Animal Cells
    Authors:  Gal Haimovich and Jeffrey E. Gerst, date: 11/05/2018, view: 833, Q&A: 1
    [Abstract] Transcription and RNA decay play critical roles in the process of gene expression and the ability to accurately measure cellular mRNA levels is essential for understanding this regulation. Here, we describe a single-molecule fluorescent in situ hybridization (smFISH) method (as performed in Haimovich et al., 2017) that detects ...
    mRNA Stability Assay Using Transcription Inhibition by Actinomycin D in Mouse Pluripotent Stem Cells
    Authors:  Madara Ratnadiwakara and Minna-Liisa Änkö, date: 11/05/2018, view: 490, Q&A: 0
    [Abstract] Gene expression is regulated through multiple steps at both transcriptional and post-transcriptional levels. The net abundance of mature mRNA species in cells is determined by the balance between transcription and degradation. Thus, the regulation of mRNA stability is a key post-transcriptional event that can greatly affect the net level of mRNAs ...
    RNA Immunoprecipitation Assay to Determine the Specificity of SRSF3 Binding to Nanog mRNA
    Authors:  Madara Ratnadiwakara and Minna-Liisa Änko, date: 11/05/2018, view: 333, Q&A: 0
    [Abstract] Mammalian cells express hundreds of RNA binding proteins (RBPs) that are essential regulators of RNA metabolism. RBP activity plays a central role in the control of gene expression programs and identification of RNA-protein interactions is critical for comprehensive understanding of gene regulation in cells. In recent years, various tools and ...
    Behavioral Evaluation of Seeking and Preference of Alcohol in Mice Subjected to Stress
    Authors:  Ana Canseco-Alba, Norman Schanz, Hiroki Ishiguro, Qing-Rong Liu and Emmanuel S. Onaivi, date: 10/20/2018, view: 372, Q&A: 0
    [Abstract] The alcohol preference model is one of the most widely used animal models relevant to alcoholism. Stressors increase alcohol consumption. Here we present a protocol for a rapid and useful tool to test alcohol preference and stress-induced alcohol consumption in mice. In this model, animals are given two bottles, one with a diluted solution of ...
    Real-time PCR Analysis of PAMP-induced Marker Gene Expression in Nicotiana benthamiana
    Authors:  Fan Liu, Yuanpeng Xu, Yan Wang and Yuanchao Wang, date: 10/05/2018, view: 647, Q&A: 0
    [Abstract] Perception of pathogen-associated molecular patterns (PAMPs) often triggers various innate immune responses in plants. The transcriptional changes of defense-related genes are often used as a marker to assay PAMP-triggered plant immune response. Here we described a protocol to monitor the relative expression level of marker genes in Nicotiana ...
    Preparation of Sequencing RNA Libraries through Chemical Cross-linking Coupled to Affinity Purification (cCLAP) in Saccharomyces cerevisiae
    Authors:  Congwei Wang, Julie Weidner and Anne Spang, date: 10/05/2018, view: 745, Q&A: 0
    [Abstract] Ribonucleoprotein particles (mRNPs) are complexes consisting of mRNAs and RNA-binding proteins (RBPs) which control mRNA transcription localization, turnover, and translation. Some mRNAs within the mRNPs have been shown to undergo degradation or storage. Those transcripts can lack general mRNA elements, like the poly(A) tail or 5’ cap structure, ...
    In planta Transcriptome Analysis of Pseudomonas syringae
    Authors:  Tatsuya Nobori and Kenichi Tsuda, date: 09/05/2018, view: 1299, Q&A: 0
    [Abstract] Profiling bacterial transcriptome in planta is challenging due to the low abundance of bacterial RNA in infected plant tissues. Here, we describe a protocol to profile transcriptome of a foliar bacterial pathogen, Pseudomonas syringae pv. tomato DC3000, in the leaves of Arabidopsis thaliana at an early stage of ...
    Studying the Mechanisms of Developmental Vocal Learning and Adult Vocal Performance in Zebra Finches through Lentiviral Injection
    Authors:  Zhimin Shi, Ofer Tchernichovski and XiaoChing Li, date: 09/05/2018, view: 592, Q&A: 0
    [Abstract] Here we provide a detailed step-by-step protocol for using lentivirus to manipulate miRNA expression in Area X of juvenile zebra finches and for analyzing the consequences on song learning and song performance. This protocol has four parts: 1) making the lentiviral construct to overexpress miRNA miR-9; 2) packaging the lentiviral vector; 3) ...

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