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Protein Expression and Analysis

IL-13 is a Pathogenic Driver of COVID-19

IL-13 is a Pathogenic Driver of COVID-19 Available On-Demand Speaker Alexandra Donlan Graduate StudentUniversity of Virginia Alexandra received her bachelor’s degree in Biological Sciences from Florida State University, where she studied the role of exosomes in the oncogenesis of Epstein–Barr virus in the lab of Dr David Meckes. She is working towards her PhD at…

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Development of ultrasensitive immunoassays for SARS-CoV-2 antibody detection

Development of ultrasensitive immunoassays for SARS-CoV-2 antibody detection Available On Demand Speaker Rosemary Sweetwood Manager, CAST Sample Testing, Scientist II CAST Custom Assay DevelopmentMilliporeSigma Rosemary Sweetwood has worked with SMC™ technology for over 7 years in diagnostic development, assay development, and custom manufacturing, as well as managing clinical sample testing projects for our SMC™ Sample…

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IgG Antibodies Against SARS-CoV-2 Correlate to Days from Symptom Onset in COVID-19 Positive Patients

IgG Antibodies Against SARS-CoV-2 Correlate to Days from Symptom Onset in COVID-19 Positive Patients Available On Demand Speaker Mary Young Research TechnicianUniversity of Virginia, School of Medicine Mary Young has her Bachelors of Science in Biology from Elon University. She joined the Petri Lab 3 years ago as a research technician helping with several projects,…

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A-Z of Post-Translational Modifications

You might know the most common post-translational modifications, but there are many more than just phosphorylation and ubiquitination – come and test your knowledge!

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Assay Development for Quantification of Low-abundance Proteins Using Single Molecule Counting

Assay Development for Quantification of Low-abundance Proteins Using Single Molecule Counting On-Demand Sponsored by Sarah HamrenMilliporeSigma In this tutorial you will find: How MilliporeSigma’s Single Molecule Counting (SMC™) platform can be used to detect even very low levels of Huntingtin protein How to reach fM levels of sensitivity detecting both mHTT and total HTT Development…

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Icky Sticky: Heat Shock Protein Contamination during Protein Purification

Purifying a new protein is no easy feat. Finding combinations of protein purification buffer, salt, detergent, and stabilizing agent to get high yields of squeaky-clean protein can become tedious. Few things are as bothersome during this process as Heat Shock Protein (HSP) contamination. But worry not, we’ve got some handy tips to avoid HSP contamination…

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Spinning Around: Tips and Tricks for Using Centrifugal Filters

One of the most widespread protein laboratory accessories are the MWCO (molecular weight cut-off) centrifugal filters which are commonly used for concentrating protein, as well as DNA. They are available commercially with different cut-offs including 3kDa, 30kDa, 50kDa, 100kDa, and so on. These little devices are expensive and hence demand proper usage and care to…

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Laemmli Buffer: What Is It for Anyway?

Electrophoresis encompasses a wide range of techniques in which charged biomolecules in a liquid, a solid, or a semisolid solution can be separated by size under the application of an electric field. The most common application of electrophoresis for the separation of proteins is SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis), which has been previously covered here.  …

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Designing a LOV2 Domain-Based Toolkit

Cell Biology is entering the Age of Light with a spectrum of new optogenetics tools available to control protein function using light. Once the remit of neuroscientists [1], the past decade has yielded a bounty of novel light-controllable domains that are now being leveraged to illuminate the dark corners of basic cell biology [2,3]. The…

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So You Think You Can PEMSA? A Guide to Protein Electrophoretic Mobility Shift Assay

Studying nucleic acid interactions with proteins can be accomplished using a rapid and efficient electrophoretic mobility shift assay (EMSA). This method is essentially an agarose gel electrophoresis technique that detects protein:nucleic acid interactions, as the mobility of the labeled nucleic acid will be retarded if bound to a protein (compared to unbound DNA). A lesser-known…

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The Mysterious World of Macrophages: How to Harness Them for Your Research

The Mysterious World of Macrophages: How to Harness Them for Your Research In this tutorial, you will learn: How to work with mouse and human macrophages The best methods for culturing macrophages The difference between M1 and M2 macrophages, and how to differentiate each population from monocytes What data to expect based on the conditions…

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