EZ-Magna ChIP^®A/G染色质免疫沉淀试剂盒

蛋白质是细胞内部的主要功能分子，负责细胞功能和生存的多种生物学活动。值得关注的是，许多蛋白质也能与DNA发生相互作用。

Protein and nucleic acid interaction reagents and resources for investing protein-RNA, protein-DNA, and protein-protein interactions and associated applications.

The 3rd edition of An Introduction to Antibodies and Their Applications provides a concise overview of some of the key features for the use of antibodies and immunochemical techniques in biological research. This handy reference guide supplements the techniques described in literature, recorded in general laboratory procedures, and described on individual product data sheets. Antibody design, development, and production are our expertise. Stringent validation of our antibodies is only one component of a comprehensive process we undertake to provide the antibodies most cited by the research community (see section Antibody Quality on page 2 for an in-depth look at our expertise).

Chromatin immunoprecipitation (ChIP) has been widely adapted for the study of gene-specific and genome-wide distribution of specific DNA- and RNA-binding proteins or protein modifications. Similar to standard protein immunoprecipitation assays, ChIP involves isolation of immunocomplexes using a solid medium, such as agarose or magnetic beads, coupled to either IgG binding recombinant protein A or protein G. In a typical ChIP experiment either protein A or G is selected for enrichment depending on the antibody isotype. However, proteins A and G possess differing affinities for human and mouse IgGs. Complicating this choice, for some antibody isotypes there is affinity for both protein A and G. In addition, we have observed that independent of the isotype the affinity of a specific antibody for protein A or G can vary depending on the specific clone, purification method, and source.