Protocols in Current Issue
    High-level Production of Recombinant Membrane Proteins Using the Engineered Escherichia coli Strains SuptoxD and SuptoxR
    Authors:  Myrsini Michou, Dafni C. Delivoria and Georgios Skretas, date: 08/05/2020, view: 417, Q&A: 0
    [Abstract] We have previously described the development of two specialized Escherichia coli strains for high-level recombinant membrane protein (MP) production. These engineered strains, termed SuptoxD and SuptoxR, are capable of suppressing the cytotoxicity caused by MP overexpression and of producing greatly enhanced MP yields. Here, we present a ...
    In vivo Quantification of Alkanes in Escherichia coli
    Authors:  Tabinda Shakeel, Zia Fatma and Syed Shams Yazdani, date: 04/20/2020, view: 1102, Q&A: 0
    [Abstract] Microbial production of alkanes employing synthetic biology tools has gained tremendous attention owing to the high energy density and similarity of alkanes to existing petroleum fuels. One of the most commonly studied pathways includes the production of alkanes by AAR (acyl-ACP (acyl carrier protein) reductase)-ADO (aldehyde deformylating ...
    Preparation and Purification of Active Recombinant Human Pancreatic Lipase in Escherichia coli
    Authors:  Nanami Kawaguchi, Haruko Ogawa and Kimie Date, date: 07/05/2019, view: 1742, Q&A: 0
    [Abstract] Human pancreatic lipase (HPL) is the main lipolytic enzyme involved in the digestion of dietary fat. An active recombinant human pancreatic lipase (recHPL) was successfully prepared for the first time in an Escherichia coli (E. coli) expression system using a short Strep-tag II (ST II). The recHPL-ST II was solubilized with 8 M urea from ...
    Bacterial Microcolonies in Gel Beads for High-throughput Screening
    Author:  Yolanda Schaerli, date: 07/05/2018, view: 4763, Q&A: 0
    [Abstract] High-throughput screening of a DNA library expressed in a bacterial population for identifying potentially rare members displaying a property of interest is a crucial step for success in many experiments such as directed evolution of proteins and synthetic circuits and deep mutational scanning to identify gain- or loss-of-function mutants.
    Heterologous Expression and Purification of the CRISPR-Cas12a/Cpf1 Protein
    Authors:  Prarthana Mohanraju, John van der Oost, Martin Jinek and Daan C. Swarts, date: 05/05/2018, view: 8300, Q&A: 3
    [Abstract] This protocol provides step by step instructions (Figure 1) for heterologous expression of Francisella novicida Cas12a (previously known as Cpf1) in Escherichia coli. It additionally includes a protocol for high-purity purification and briefly describes how activity assays can be performed. These protocols can also be used for ...
    Expression, Purification and Enzymatic Assay of Plant Histone Deacetylases
    Authors:  Ming Luo and Keqiang Wu, date: 04/05/2016, view: 6232, Q&A: 0
    [Abstract] Histone deacetylases (HDACs) catalyzing the removal of acetyl groups from lysine residues of histone and non-histone proteins play vital roles in regulation of gene transcription. In plants, HDACs can be grouped into three families, including RPD3-type, SIR2-type and plant specific HD2-type HDACs. Here we describe a method to determine plant HDAC ...

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