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Chelsey Kline

Articles by Chelsey Kline:

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…

07 Aug 2019 Protein Expression and Analysis

The art of generating single cell clones

Making mutations in mammalian cell lines is becoming much easier, especially with advanced molecular engineering techniques such as CRISPR/Cas9, among others. However, after making a mutation, do you know if all of the cells contain the same mutation with the same expression profiles, and are therefore homogenous? If you have 100% transfection efficiency using a…

30 Jan 2019 Cells and Model Organisms

Crash Course in Fourier Transform Infrared Spectroscopy

Fourier transform infrared spectroscopy (FTIR) is an extremely sensitive technique for measuring the absorption and intensity of electromagnetic radiation in the infrared region of the spectrum of either a solid, liquid or gas sample. You can use FTIR to: quantify unknown compounds identify unknown compounds study the detailed structured coordination of compounds How Does Fourier…

18 Jul 2018 Analytical Chemistry and Chromatography Techniques&Protein Expression and Analysis

How to Prepare Biological Metallo-Proteins

The first thing one might notice when working with metallo-proteins is that they offer unique, colorful reactions.  These colorful reactions are based not only on the metal, but the ligand, or coordinating molecules.  Approximately 80% of proteins contain inorganic cofactors like iron (Fe) and copper (Cu) metals necessary to catalyze a reaction.  Understanding how these…

12 Sep 2017 Protein Expression and Analysis

The Nitty Gritty’s of Cell Culture Techniques

Mammalian cell culture techniques are not something you learn from a book, per se. And because of this, it is important to be properly trained, especially in sterile techniques. It is important to keep your cell lines from contamination and just as important to keep yourself safe. Nevertheless, people tend to do things a little…

07 Sep 2017 Cells and Model Organisms