Cell line authentication

Get tips on using Cytotoxicity Detection Kit (LDH) to perform Live / Dead assay mammalian cells - RAW 264.7

RNA-Seq is a method to sequence RNA by applying Next Generation Sequencing (NGS). The quality of RNA is critical for the success of RNA-Seq. The integrity of RNA is measured by the RNA integrity number (RIN). RIN is computed from RNA electrophoresis and electropherogram profiles (the peak area of the 28S rRNA should be approximately twice the peak area of the 18S rRNA). If you get the RIN value lower than 7, the possibility of getting the low quality of RNA-seq data is high. To get a high quality RNA, it is better to work with fresh samples or snap-freeze the tissues in liquid nitrogen as quickly as possible and store them at -80°C until further use. Make sure designated areas and all your filter tips, microfuge tubes, plastic, and glassware are RNase-free.

Protein isolation is a technique that involves isolation and/ or purification of protein from cells or tissues via chromatography or electrophoresis. The major challenges in protein isolation include: 1. The concentration of proteins in cells is variable and tends to be small for some intracellular proteins. Unlike nucleic acids, proteins cannot be amplified. 2. Proteins are more unstable than nucleic acids. They are easily denatured under suboptimal temperature, pH or salt concentrations. 3. Finally, no generalized technique/protocol can be applied for protein isolation. Proteins may have different electrostatic (number of positively or negatively charged amino acids) or hydrophobic properties. Therefore, protein purification requires multiple steps depending on their charge (a negatively charged resin/column for positively charged proteins and vice-versa), dissolution (using detergents) and unlike in the case of DNA and RNA, instead of using salts, proteins should be isolated by isoelectric precipitation.

A standard angiogenic assay involves the autonomous endothelial cell response of self-organization into microvessels, also known as tubes when seeded on a basement membrane matrix in the presence of the appropriate growth factors. However, the component of basement membrane matrix may also affect the tube formation by endothelial cells. Hence it is important to use a standard angiogenesis assay kit or use the same membrane matrix with known composition to standardize the assay conditions.

Get tips on using rMaj-pCHH-B to perform Protein Expression Prokaryotic cells - E. coli M. japonicus CHH-like peptide

Get tips on using MultiTox-Fluor Multiplex Cytotoxicity Assay to perform Live / Dead assay mammalian cells - RAW 264.7

Get tips on using Zombie Violet™ Fixable Viability Kit to perform Live / Dead assay mammalian cells - mouse microglia

Get tips on using Zombie UV™ Fixable Viability Kit to perform Live / Dead assay mammalian cells - mouse splenocytes

Get tips on using Zombie Fixable Viability™ Sampler Kit to perform Live / Dead assay mammalian cells - HEK 293

Get tips on using CytoTox 96® Non-Radioactive Cytotoxicity Assay to perform Live / Dead assay mammalian cells - CHO-K1