Protein expression and purification Mammalian cells HeLa

Get tips on using RNeasy Mini Kit to perform RNA isolation / purification Cells - immortalized OVCAR3

Get tips on using RNeasy Mini Kit to perform RNA isolation / purification Cells - immortalized A549

Get tips on using NucleoSpin® RNA to perform RNA isolation / purification Cells - immortalized OVCAR3

Get tips on using RNeasy Mini Kit to perform RNA isolation / purification Cells - immortalized Jurkat

Flow cytometry is an immunophenotyping technique whereby sing cell suspensions are stained for either cell surface markers or intracellular proteins by fluorescently-labelled antibodies and analyzed with a flow cytometer, where fluorescently-labelled molecules are excited by the laser to emit light at varying wavelengths, which is then detected by the instrument. There are several key criteria which are required to be kept in mind while designing a flow experiment- 1. Antibody titration (optimal dilution of antibodies should be calculated in order to avoid over- or under- saturated signals for proper detection of surface and intracellular markers), 2. Precision (3 or more replicates of the sample should be used per experiment), 3. Specificity (proper isotype controls should be included in the experiment), 4. Day-to-day variability (experiments should be repeated 3 or more times to ensure consistency and avoid variability due to flow cytometer settings), 5. Antibody interaction (Fluorescence minus one or FMO should be used, which is the comparison of signals from panel minus one antibody vs. the full panel), and 6. Antibody stability (fluorescently-labelled antibodies should be stored at 4C).

Get tips on using Enzo BioArray™ Single-Round RNA Amplification and Biotin Labeling System to perform Microarray RNA amplification & Labeling - Rhesus monkey brain tissue Biotin

DNA-protein interactions are studied by using ChIP. The basic steps in this technique are crosslinking, sonication, immunoprecipitation, and analysis of the immunoprecipitated DNA. During ChIP, if chromatin is under-fragmented or fragments are too large which can lead to the increased background and lower resolution. Shorter cross-linking times (5-10 min) and/or lower formaldehyde concentrations (<1%) may improve shearing efficiency. If Chromatin is over-fragmented, then optimize shearing conditions for each cell type to improve ChIP efficiency. Over-sonication of chromatin may disrupt chromatin integrity and denature antibody epitopes. If you do not see any product or very little product in the input PCR reactions, add 5–10 μg chromatin per IP.

Get tips on using IMAGEN™ Influenza Virus A and B Kit using Direct Immunofluorescence Assay to perform Cell Culture Contamination Detection Kit Virus

Get tips on using Enzo BioArray™ Single-Round RNA Amplification and Biotin Labeling System to perform Microarray Rhesus monkey - Brain tissue Target preparation (RNA amplification + labeling)