Molecular Biology

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    Protocols in Current Issue
    Ratiometric Measurement of Protein Abundance after Transient Expression of a Transgene in Nicotiana benthamiana
    Authors:  Aashima Khosla and David C. Nelson, date: 09/05/2020, view: 462, Q&A: 0
    [Abstract] Ratiometric reporters are tools to dynamically measure the relative abundance of a protein of interest. In these systems, a target protein fused to a fluorescent or bioluminescent reporter is expressed with fixed stoichiometry to a reference protein fused to a second reporter. Both fusion proteins are encoded on a single transcript but are ...
    A SsrA/NIa-based Strategy for Post-Translational Regulation of Protein Levels in Gram-negative Bacteria
    Authors:  Gonzalo Durante-Rodríguez, Belén Calles, Víctor de Lorenzo and Pablo I. Nikel, date: 07/20/2020, view: 484, Q&A: 0
    [Abstract] Strategies to control the levels of key enzymes of bacterial metabolism are commonly based on the manipulation of gene of interest within the target pathway. The development of new protocols towards the manipulation of biochemical processes is still a major challenge in the field of metabolic engineering. On this background, the FENIX (functional ...
    Auxin-mediated Protein Degradation in Caenorhabditis elegans
    Authors:  Michael A. Q. Martinez and David Q. Matus, date: 04/20/2020, view: 1484, Q&A: 0
    [Abstract] The auxin-inducible degron (AID) technology was recently adapted for use in the nematode Caenorhabditis elegans. Rapid degradation of C. elegans proteins tagged with an AID is mediated by a plant-specific F-box protein, transport inhibitor response 1 (TIR1), and occurs only in the presence of the phytohormone auxin. The first ...
    Measuring cAMP Specific Phosphodiesterase Activity: A Two-step Radioassay
    Authors:  Connor M. Blair, Jiayue Ling and George S. Baillie, date: 04/05/2020, view: 735, Q&A: 0
    [Abstract] Cyclic nucleotide degrading phosphodiesterase (PDE) enzymes are crucial to the fine tuning of cAMP signaling responses, playing a pivotal role in regulating the temporal and spatial characteristics of discrete cAMP nanodomains and hence the activity of cAMP-effector proteins. As a consequence of orchestrating cAMP homeostasis, dysfunctional PDE ...
    Conditional Knockdown of Proteins Using Auxin-inducible Degron (AID) Fusions in Toxoplasma gondii
    Authors:  Kevin M. Brown, Shaojun Long and L. David Sibley, date: 02/20/2018, view: 9193, Q&A: 0
    [Abstract] Toxoplasma gondii is a member of the deadly phylum of protozoan parasites called Apicomplexa. As a model apicomplexan, there is a great wealth of information regarding T. gondii’s 8,000+ protein coding genes including sequence variation, expression, and relative contribution to parasite fitness. However, new tools are needed to ...
    An Affinity-directed Protein Missile (AdPROM) System for Targeted Destruction of Endogenous Proteins
    Authors:  Thomas J Macartney, Gopal P Sapkota and Luke J Fulcher, date: 11/20/2017, view: 5337, Q&A: 0
    [Abstract] We recently reported an Affinity-directed PROtein Missile (AdPROM) system for the targeted proteolysis of endogenous proteins of interest (POI) (Fulcher et al., 2016 and 2017). AdPROM consists of the Von Hippel Lindau (VHL) protein, a Cullin 2 E3 ligase substrate receptor (Bosu and Kipreos, 2008), conjugated to a high affinity polypeptide ...



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