Biochemistry

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    Protocols in Current Issue
    Determination of the Cellular Ion Concentration in Saccharomyces cerevisiae Using ICP-AES
    Authors:  Louise Thines, Anne Iserentant and Pierre Morsomme, date: 08/20/2020, view: 583, Q&A: 0
    [Abstract] The yeast Saccharomyces cerevisiae has been perceived over decades as a highly valuable model organism for the investigation of ion homeostasis. Indeed, many of the genes and biological systems that function in yeast ion homeostasis are conserved throughout unicellular eukaryotes to humans. In this context, measurement of the yeast ...
    Gas Chromatography Detection Protocol of Short-chain Fatty Acids in Mice Feces
    Authors:  Chaozheng Zhang, An Liu, Tianshuang Zhang, Yi Li and Hua Zhao, date: 07/05/2020, view: 793, Q&A: 0
    [Abstract] Short-chain fatty acids (SCFAs), which are formed mainly by bacteria fermenting undigested carbohydrates in the colon, they are based on the number of carbon atoms in the carbon chain. Organic fatty acids with less than 6 carbon atoms are called short-chain fatty acids. SCFAs are closely related to various aspects of the human body, so more and ...
    Pancreatic Acinar Cell Preparation for Oxygen Consumption and Lactate Production Analysis
    Authors:  Jane A. Armstrong, Robert Sutton and David N. Criddle, date: 05/20/2020, view: 908, Q&A: 0
    [Abstract] Mitochondrial dysfunction is a principal feature of acute pancreatitis (AP) although the underlying mechanisms are still unclear. AP precipitants induce Ca2+-dependent formation of the mitochondrial permeability transition pore (MPTP) in pancreatic acinar cells (PACs), leading to ATP depletion and necrosis. Evaluations of mitochondrial ...
    Quantification of Fatty Acids in Mammalian Tissues by Gas Chromatography–Hydrogen Flame Ionization Detection
    [Abstract] In mammalian organisms, fatty acids (FAs) exist mostly in esterified forms, as building blocks of phospholipids, triglycerides, and cholesteryl esters, while some exist as non-esterified free FAs. The absolute quantification of FA species in total lipids or in a specific lipid class is critical in lipid-metabolism studies. To quantify FAs in ...
    In vivo Quantification of Alkanes in Escherichia coli
    Authors:  Tabinda Shakeel, Zia Fatma and Syed Shams Yazdani, date: 04/20/2020, view: 1190, 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 ...
    Quantitative Determination of Ca2+-binding to Ca2+-sensor Proteins by Isothermal Titration Calorimetry
    Authors:  Seher Abbas and Karl-Wilhelm Koch, date: 04/05/2020, view: 1066, Q&A: 0
    [Abstract] Diverse and complex molecular recognitions are central elements of signal transduction cascades. The strength and nature of these interaction modes can be determined by different experimental approaches. Among those, Isothermal titration calorimetry (ITC) offers certain advantages by providing binding constants and thermodynamic parameters from ...
    Shared Pheromonal Communication of Specific Fear Between Adult Sprague Dawley Rats
    Authors:  Samantha J. Carew and Abhinaba Ghosh, date: 03/20/2020, view: 820, Q&A: 0
    [Abstract] Rats are highly social animals, and mainly communicate with one another in two ways: through ultrasonic vocalizations and pheromones. Most research on pheromones has been dedicated those regarding sexual behavior, but more recently pheromones which signal danger to conspecifics have been identified in rodents. In fact, rats are capable of ...
    Live Mitochondrial or Cytosolic Calcium Imaging Using Genetically-encoded Cameleon Indicator in Mammalian Cells
    Authors:  Elisa Greotti and Tullio Pozzan, date: 02/05/2020, view: 1779, Q&A: 0
    [Abstract] Calcium (Ca2+) imaging aims at investigating the dynamic changes in live cells of its concentration ([Ca2+]) in different pathophysiological conditions. Ca2+ is an ubiquitous and versatile intracellular signal that modulates a large variety of cellular functions thanks to a cell type-specific toolkit and a complex ...
    Measurement of Chloroplastic NAD Kinase Activity and Whole Tissue NAD Kinase Assay
    Authors:  Yuuma Ishikawa, Maki Kawai-Yamada and Shin-nosuke Hashida, date: 01/05/2020, view: 1538, Q&A: 0
    [Abstract] Nicotinamide adenine dinucleotide phosphate (NADP) synthesis requires nicotinamide adenine dinucleotide (NAD) kinase activity, substrate NAD and ATP. The NAD kinase responds to various environmental stimuli and its activity is regulated via various regulatory pathways, such as Ca2+-dependent and redox-dependent signals. Conventional in ...
    Intracellular cAMP Measurements in Candida albicans Biofilms
    Authors:  Liuliu Jiang, Shengyan Chen, Kairui Sun, Peng Zhou and Xin Wei, date: 12/05/2019, view: 1337, Q&A: 0
    [Abstract] Candida albicans is the most common cause of fungal infections worldwide. Infection by C. albicans is closely associated with its ability to form a biofilm, closely packed communities of cells attached to the surfaces of human tissues and implanted devices, in or on the host. When tested for susceptibility to antifungals, such as ...



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