Molecular Biology

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    Protocols in Current Issue
    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 ...
    Analyzing (Re)Capping of mRNA Using Transcript Specific 5' End Sequencing
    Authors:  Daniel del Valle Morales and Daniel R. Schoenberg, date: 10/20/2020, view: 191, Q&A: 0
    [Abstract] The 5′ cap is a ubiquitous feature of eukaryotic mRNAs. It is added in the nucleus onto newly synthesized pre-mRNA, and in the cytoplasm onto mRNAs after decapping or endonuclease cleavage. Cytoplasmic recapping can occur after loss of the cap at the native 5′ end, or downstream within the body of the mRNA. The identification and location of ...
    Using RNA Sequencing and Spike-in RNAs to Measure Intracellular Abundance of lncRNAs and mRNAs
    Authors:  Megan D. Schertzer, McKenzie M. Murvin and J. Mauro Calabrese, date: 10/05/2020, view: 230, Q&A: 0
    [Abstract] Long noncoding RNAs (lncRNAs) play essential roles in normal physiology and in disease but their mechanisms of action can be challenging to identify. For mechanistic studies, it is often useful to know a lncRNA’s intracellular abundance, i.e., approximately how many molecules of the lncRNA are present in a typical cell of a cell-type of ...
    Nonenzymatic RNA-templated Synthesis of N3′→P5′ Phosphoramidate DNA
    Authors:  Derek K. O'Flaherty, Lijun Zhou and Jack W. Szostak, date: 09/05/2020, view: 548, Q&A: 0
    [Abstract] The RNA world hypothesis describes a scenario where early life forms relied on RNA to govern both inheritance and catalyze useful chemical reactions. Prior to the emergence of enzymes capable of replicating the RNA genome, a nonenzymatic replication process would have been necessary to initiate Darwinian Evolution. However, the one-pot ...
    Screening Method for CRISPR/Cas9 Inhibition of a Human DNA Virus: Herpes Simplex Virus
    [Abstract] The efficiency of cleavage of individual CRISPR/Cas9-sgRNAs remains difficult to predict based on the CRISPR target sequence alone. Different intracellular environments (dependent on cell type or cell cycle state for example) may affect sgRNA efficiency by altering accessibility of genomic DNA through DNA modifications such as epigenetic marks and ...
    Mapping mRNA-18S rRNA Contacts Within Translation Initation Complex by Means of Reverse Transcriptase Termination Sites and RNAseq
    Authors:  Irene Díaz-López, René Toribio and Iván Ventoso, date: 08/20/2020, view: 696, Q&A: 0
    [Abstract] The nucleotides involved in RNA-RNA interaction can be tagged by chemical- or UV-induced crosslinking, and further identified by classical or modern high throughput techniques. The contacts of mRNA with 18S rRNA that occur along the mRNA channel of 40S subunit have been mapped by site-specific UV crosslinking followed by reverse transcriptase ...
    Paper Lateral Flow Biosensor for Nodavirus Reverse Transcribed RNA Detection
    Authors:  Dimitra K. Toubanaki and Evdokia Karagouni, date: 08/05/2020, view: 549, Q&A: 0
    [Abstract] Paper nanobiosensors have been established as an excellent platform for analysis of veterinary and human pathogens causing various diseases. Especially, lateral flow assays or biosensors ideal for sensitive, rapid, robust and accurate analysis in laboratory setups and on-site analysis. Viral RNA detection is of great importance for public health ...
    Preparation of Yeast tRNA Sample for NMR Spectroscopy
    Authors:  Marjorie Catala, Alexandre Gato, Carine Tisné and Pierre Barraud, date: 06/20/2020, view: 887, Q&A: 0
    [Abstract] Transfer RNAs (tRNAs) are heavily decorated with post-transcriptional modifications during their biosynthesis. To fulfil their functions within cells, tRNAs undergo a tightly controlled biogenesis process leading to the formation of mature tRNAs. In addition, functions of tRNAs are often modulated by their modifications. Although the biological ...
    Low-cost and Multiplexable Whole mRNA-Seq Library Preparation Method with Oligo-dT Magnetic Beads for Illumina Sequencing Platforms
    Authors:  Makoto Kashima, Ayumi Deguchi, Ayumi Tezuka and Atsushi J. Nagano, date: 06/20/2020, view: 1522, Q&A: 0
    [Abstract] RNA-Seq is a powerful method for transcriptome analysis used in varied field of biology. Although several commercial products and hand-made protocols enable us to prepare RNA-Seq library from total RNA, their cost are still expensive. Here, we established a low-cost and multiplexable whole mRNA-Seq library preparation method for illumine ...
    Biochemical Pulldown of mRNAs and Long Noncoding RNAs from Cellular Lysates Coupled with Mass Spectrometry to Identify Protein Binding Partners
    Authors:  Anca F. Savulescu, Stoyan Stoychev, Sipho Mamputha and Musa M. Mhlanga, date: 06/05/2020, view: 1297, Q&A: 0
    [Abstract] RNA binding proteins (RBPs) interact with cellular mRNAs, controlling various steps throughout the lifetime of these transcripts, including transcription, cellular transport, subcellular localization, translation and degradation. In addition to binding mRNA transcripts, a growing number of RBPs are shown to bind long noncoding RNAs (lncRNAs), ...



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