Protein expression and purification Bacteria Escherichia coli

Get tips on using QIAquick PCR Purification Kit to perform DNA gel extraction / PCR product purification Product size < 15Kb

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 GeneJET RNA Purification Kit to perform RNA isolation / purification Cells - primary human renal artery smooth muscle cells

Get tips on using Strep-Tactin Superflow Plus (10 ml) to perform Protein tag Purification of Strep-tagged proteins

Get tips on using Ni-NTA Fast Start Kit (6) to perform Protein tag Purification of His-tagged proteins

Isolating DNA from tissues and paraffin-embedded tissue samples can be challenging as double-stranded DNA is physically fragile and highly susceptible to exo- and endonucleases. The best solution is to slice the tissues into smaller pieces and make a homogenate solution (using tissue homogenizer or grinding liquid nitrogen frozen samples) in the presence of DNAse inhibitors. Further, extracting DNA from the nucleus need specific methods by combining physical, mechanical and chemical lysis approaches,

Get tips on using Dynabeads™ mRNA Purification Kit to perform RNA isolation / purification Tissue - Rat Adrenal glands

Get tips on using Nucleic Acid Purification to perform Plasmid Isolation Lactococcus lactis

Get tips on using Nucleic Acid Purification to perform Plasmid Isolation DH10Bac (Bacmid)

Get tips on using Monoclonal Mouse Anti-Human p53 Protein (Dako Omnis) Clone DO-7 to perform Immunohistochemistry Human - p53