Protein isolation

Get tips on using Gentra Puregene Mouse Tail Kit (4 g) to perform DNA isolation / purification Tissue - murine tail biopsies

Get tips on using QuickGene RNA Cultured Cell HC Kit S to perform RNA isolation / purification Cells - immortalized SH-SY5Y

Get tips on using ARCTURUS® PicoPure® DNA Extraction Kit to perform RNA isolation / purification Cells - primary human melanocytes

Get tips on using ARCTURUS® PicoPure® DNA Extraction Kit to perform DNA isolation / purification Tissue - murine tail biopsies

Get tips on using Easy-Spin (DNA free) Total RNA Extraction Kit to perform RNA isolation / purification Tissue - Mouse Cornea

Get tips on using VWR Life Science RiboZol™ RNA Extraction Reagent to perform RNA isolation / purification Tissue - Human Gallbladder

Get tips on using VWR Life Science RiboZol™ RNA Extraction Reagent to perform RNA isolation / purification Cells - immortalized C2C12

Get tips on using EasySep™ Human Cord Blood CD34 Positive Selection Kit II to perform Cell Isolation CD34+ cells

Get tips on using Wizard® Plus SV Minipreps DNA Purification System Technical Bulletin to perform Plasmid Isolation Streptomyces spp

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.