Biochemistry

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    Protocols in Current Issue
    A Highly Sensitive, Reproducible Assay for Determining 4-hydroxynonenal Protein Adducts in Biological Material
    Authors:  T. Blake Monroe and Ethan J. Anderson, date: 10/05/2019, view: 288, Q&A: 0
    [Abstract] Oxidative stress is associated with numerous diseases, and markers of oxidative stress in biological material are becoming a mainstay of both experimental and clinical/epidemiological research. Lipid peroxidation is a major form of oxidative stress, but due to their rapid degradation and instability, lipid peroxides are notoriously difficult to ...
    A Radioactive in vitro ERK3 Kinase Assay
    Authors:  Lobna Elkhadragy and Weiwen Long, date: 08/20/2019, view: 465, Q&A: 0
    [Abstract] Mitogen-activated protein kinases (MAPKs) are serine/threonine kinases that have an important role in signal transduction. Extracellular signal-regulated kinase 3 (ERK3), also known as MAPK6, is an atypical MAPK. Here, we describe in detail an in vitro assay for the kinase activity of ERK3 using myelin basic protein (MBP) or steroid ...
    In vitro and in vivo Assessment of Protein Acetylation Status in Mycobacteria
    Authors:  Krishna K. Singh, Devendra P. Singh, Rambir Singh and Deepak K. Saini, date: 07/05/2019, view: 721, Q&A: 0
    [Abstract] Protein acetylation is one of the standard post-translational modifications found in proteins across all organisms, along with phosphorylation which regulates diverse cellular processes. Acetylation of proteins can be enzymatically catalyzed through acetyltransferases, acetyl CoA synthetases or non-enzymatically through acyl carrier metabolic ...
    Wheat Germ Agglutinin (WGA)-SDS-PAGE: A Novel Method for the Detection of O-GlcNAc-modified Proteins by Lectin Affinity Gel Electrophoresis
    Authors:  Ko Fujioka, Yuji Kubota and Mutsuhiro Takekawa, date: 12/05/2018, view: 2033, Q&A: 0
    [Abstract] Diverse cytoplasmic and nuclear proteins dynamically change their molecular functions by O-linked β-N-acetylglucosamine (O-GlcNAc) modification on serine and/or threonine residues. Evaluation of the O-GlcNAcylation level of a specific protein, however, needs multiple and time-consuming steps if using conventional methods (e.g., ...
    In vitro Enzymatic Assays of Histone Decrotonylation on Recombinant Histones
    Authors:  Rachel Fellows and Patrick Varga-Weisz, date: 07/20/2018, view: 2284, Q&A: 0
    [Abstract] Class I histone deacetylases (HDACs) are efficient histone decrotonylases, broadening the enzymatic spectrum of these important (epi-)genome regulators and drug targets. Here, we describe an in vitro approach to assaying class I HDACs with different acyl-histone substrates, including crotonylated histones and expand this to examine the ...



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