ChIP Assay Kit (Protein A/G Magnetic Beads)

Chromatin immunoprecipitation (ChIP) is a common molecular biology technique used to investigate protein-DNA interactions in cells. It involves crosslinking proteins to DNA, cell lysis, immunoprecipitation of DNA-bound proteins, reversal of crosslinks, DNA purification, and subsequent analysis of the bound DNA fragments. This ChIP assay kit employs Protein A/G magnetic beads, which bind to a wide array of antibody subclasses including mouse IgG subclasses (IgG1, IgG2a, IgG2b, IgG3, IgA), rat IgG subclasses (IgG1, IgG2a, IgG2b, IgG2c), rabbit IgG, goat polyclonal antibodies, and human IgG subclasses (IgG1–IgG4). Additionally, the beads are pre-blocked with Salmon sperm DNA to minimize nonspecific genomic DNA binding. This protocol is suitable for detecting DNA-binding preferences of transcription factors, chromatin modifiers, and histone modifications, as well as subsequent downstream analyses such as PCR or high-throughput sequencing (ChIP-Seq).