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 JoVE Biology

Reconstitution Of β-catenin Degradation In Xenopus Egg Extract

1Department of Cell and Developmental Biology and Program in Developmental Biology, Vanderbilt University Medical Center, 2Division of Gastroenterology, Hepatology & Nutrition and Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, 3Vanderbilt Ingram Cancer Center, Vanderbilt University School of Medicine


JoVE 51425

A method is described for analyzing protein degradation using radiolabeled and luciferase-fusion proteins in Xenopus egg extract and its adaptation for high-throughput screening for small molecule modulators of protein degradation.

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 JoVE Biology

RNA-seq Analysis of Transcriptomes in Thrombin-treated and Control Human Pulmonary Microvascular Endothelial Cells

1Children's Mercy Hospital and Clinics, School of Medicine, University of Missouri-Kansas City


JoVE 4393

This protocol presents a complete and detailed procedure to apply RNA-seq, a powerful next-generation DNA sequencing technology, to profile transcriptomes in human pulmonary microvascular endothelial cells with or without thrombin treatment. This protocol is generalizable to various cells or tissues affected by different reagents or disease states.

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 JoVE Biology

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

1Department of Molecular Genetics, University of Toronto, 2Banting and Best Department of Medical Research, Donnelly Centre, University of Toronto, 3Department of Biochemistry, Research and Innovation Centre, University of Regina


JoVE 4056

Systematic, large-scale synthetic genetic (gene-gene or epistasis) interaction screens can be used to explore genetic redundancy and pathway cross-talk. Here, we describe a high-throughput quantitative synthetic genetic array screening technology, termed eSGA that we developed for elucidating epistatic relationships and exploring genetic interaction networks in Escherichia coli.

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 JoVE Bioengineering

A Toolkit to Enable Hydrocarbon Conversion in Aqueous Environments

1Department of Biotechnology, Delft University of Technology, 2Delft Center for Systems and Control, Delft University of Technology


JoVE 4182

A sustainable auto regulating bacterial system for the remediation of oil pollutions was designed using standard interchangeable DNA parts (BioBricks). An engineered E. coli strain was used to degrade alkanes via β-oxidation in toxic aqueous environments. The respective enzymes from different species showed alkane degradation activity. Additionally, an increased tolerance to n-hexane was achieved by introducing genes from alkane-tolerant bacteria.

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 JoVE Biology

Metabolic Pathway Confirmation and Discovery Through 13C-labeling of Proteinogenic Amino Acids

1Department of Energy, Environmental and Chemical Engineering, Washington University, 2Department of Biology, Washington University, 3Department of Energy, Environmental and Chemical Engineering and Department of Biology, Washington University


JoVE 3583

13C-isotope labeling is a useful technique for determining the cell central metabolism for various types of microorganisms. After cells have been cultured with a specific labeled substrate, GC-MS measurement can reveal functional metabolic pathways based on unique labeling patterns in proteinogenic amino acids.

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 JoVE Neuroscience

Modeling Astrocytoma Pathogenesis In Vitro and In Vivo Using Cortical Astrocytes or Neural Stem Cells from Conditional, Genetically Engineered Mice

1Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, 2Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, 3Division of Neuropathology, Department of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, 4Curriculum in Genetics and Molecular Biology, University of North Carolina School of Medicine, 5Biological and Biomedical Sciences Program, University of North Carolina School of Medicine, 6Department of Radiation Oncology, Emory University School of Medicine, 7Department of Neurology, Neurosciences Center, University of North Carolina School of Medicine


JoVE 51763

Phenotypically wild-type astrocytes and neural stem cells harvested from mice engineered with floxed, conditional oncogenic alleles and transformed via viral Cre-mediated recombination can be used to model astrocytoma pathogenesis in vitro and in vivo by orthotopic injection of transformed cells into brains of syngeneic, immune-competent littermates.

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 JoVE Biology

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics

1Molekulare Pflanzenphysiologie, Max-Planck-Institut


JoVE 3487

Combination of genomics, co-expression gene analysis and the identification of target compounds via metabolism give gene functional annotation.

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 JoVE Biology

siRNA Screening to Identify Ubiquitin and Ubiquitin-like System Regulators of Biological Pathways in Cultured Mammalian Cells

1MRC Protein Phosphorylation and Ubiquitylation Unit, College of Life Sciences, University of Dundee, 2Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee


JoVE 51572

Here, we describe a methodology to perform a targeted siRNA “ubiquitome” screen to identify novel ubiquitin and ubiquitin-like regulators of the HIF1A-mediated cellular response to hypoxia.  This can be adapted to any biological pathway where a robust read out of reporter activity is available.

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 JoVE Clinical and Translational Medicine

DTI of the Visual Pathway - White Matter Tracts and Cerebral Lesions

1National Service of Neurosurgery, Centre Hospitalier de Luxembourg, 2University of Applied Sciences Trier, 3Internal Medicine, Erasmus Universiteit Rotterdam, 4Service of Neuroradiology, Centre Hospitalier de Luxembourg


JoVE 51946

Diffusion tensor imaging (DTI) was performed to try to depict the major parts of the visual pathway. The goal was to use an FDA approved standard commercial workstation which could be used for everyday routine in order to try to reduce postoperative damage of the visual pathway in the patients.

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 JoVE Neuroscience

Paired Nanoinjection and Electrophysiology Assay to Screen for Bioactivity of Compounds using the Drosophila melanogaster Giant Fiber System

1Department of Biological Sciences, Florida Atlantic University, 2Department of Chemistry & Biochemistry, Florida Atlantic University


JoVE 3597

A rapid in vivo assay to test for neuromodulatory compounds using the Giant Fiber System (GFS) of Drosophila melanogaster is described. Nanoinjections in the head of the animal along with electrophysiological recordings of the GFS can reveal bioactivity of compounds on neurons or muscles.

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