Description_x000D_ General description_x000D_ Nicotinamide adenine dinucleotide (NAD)-dependent histone deacetylase (Sir2) is one of the silent information regulator genes in yeast. It belongs to a family of proteins, that is found in organisms ranging from bacteria to complex eukaryotes. Proteins of this family share a core domain showing 25-60% sequence identity. The mammalian Sir2 gene family is comprised of seven members which are designated as Sirt1-7._x000D_ Immunogen_x000D_ synthetic peptide corresponding to amino acids 35-51 of human Sirt7, conjugated to KLH via a C-terminal cysteine residue. The sequence is identical in mouse._x000D_ Application_x000D_ Anti-Sirt7 antibody produced in rabbit has been used in western blotting analysis and immunofluorescence detection._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM 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_ Biochem/physiol Actions_x000D_ Sirt7 (sirtuin 7) is extensively found in protein associated with active rRNA genes (rDNA), in the nucleolus. It interacts with RNA polymerase I (Pol I) and histones. Overexpression of Sirt7 increases Pol I-mediated transcription, whereas knockdown of Sirt7 or inhibition of its catalytic activity results in decreased association of Pol I with rDNA and reduces Pol I transcription. Depletion of Sirt7 stops cell proliferation and triggers apoptosis. High levels of Sirt7 expression are associated with breast cancer.