University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School
2 ARTICLES PUBLISHED IN JoVE
Biology
Eukaryotic Polyribosome Profile Analysis
Anthony M. Esposito 1, Maria Mateyak 1, Dongming He 1, Marcus Lewis 1, Arjun N. Sasikumar 1, Jenna Hutton 1, Paul R. Copeland 1, Terri G. Kinzy 1
1Department of Molecular Genetics, Microbiology, and Immunology, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School
This article describes a protocol for the extraction of translating ribosomes from eukaryotic cells. Once extracted, ribosomes are separated into monosomes and polyribosomes by sucrose gradient fractionation to allow different ribosomal populations to be analyzed. As such, this method is the gold standard for examining the regulation of translation.
Immunology and Infection
A High-throughput Cre-Lox Activated Viral Membrane Fusion Assay to Identify Inhibitors of HIV-1 Viral Membrane Fusion
Anthony M. Esposito 1,2, Alexandra Y. Soare 1, Foramben Patel 1, Namita Satija 1, Benjamin K. Chen 1, Talia H. Swartz 1
1Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, Immunology Institute, 2Department of Biology, New Jersey City University
We describe a cell-based assay to report on HIV-1 fusion via the expression of green fluorescent protein detectable by flow cytometry or fluorescence microscopy. It can be used to test inhibitors of viral entry (specifically at the fusion step) in cell-free and cell-to-cell infection systems.
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