Description_x000D_ General description_x000D_ Transcription initiation factor TFIID subunit 12 (TAF12) is a TBP-associated factor (TAFs). It it a subunit of TFIID and SPT3-TAFII31-GCN5L acetylase (STAGA ) complexes. It contains a histone-fold domain (HFD) which possesses DNA binding capacity._x000D_ Immunogen_x000D_ Transcription initiation factor TFIID subunit 12 recombinant protein epitope signature tag (PrEST)_x000D_ Application_x000D_ All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org)and as a result, are supported by the most extensive characterization in the industry._x000D_ The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige._x000D_ Physical form_x000D_ Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide_x000D_ Disclaimer_x000D_ Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals._x000D_ Legal Information_x000D_ Prestige Antibodies is a registered trademark of Sigma-Aldrich Co. LLC_x000D_ Biochem/physiol Actions_x000D_ Transcription initiation factor TFIID subunit 12 (TAF12) interacts with cyclic AMP-dependent transcription factor (ATF7), which is modulated by TBP-associated factor 4 (TAF4). It mediates the transcriptional activity of ATF7 where the N-terminal domain of ATF7 and the histone-fold domain (HFD) of TAF12 interact with each other to form a heterodimer. This increases the stability of the complex with the DNA. Along with the complex of TFIID and various other proteins, TAF12 mediates the regulation of RNA polymerase transcription. There is a formation of a nucleosome-like substructure within TFIID which has a tetramer of TAF6 and TAF9 along with homodimers of TAF12._x000D_ Features and Benefits_x000D_ Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section._x000D_ Every Prestige Antibody is tested in the following ways:_x000D_ • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues._x000D_ • Protein array of 364 human recombinant protein fragments._x000D_ • Validated for multiple commonly used applications such as IHC (Immunohistochemistry), IF (Immunofluorescence), and WB (Western Blot)_x000D_ Linkage_x000D_ Corresponding Antigen APREST70900.