Anti-Sirt7 antibody produced in rabbit has been used in western blotting analysis and immunofluorescence detection.
This gene encodes a member of the sirtuin family of proteins, homologs to the yeast Sir2 protein. Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes. The functions of human sirtuins have not yet been determined; however, yeast sirtuin proteins are known to regulate epigenetic gene silencing and suppress recombination of rDNA. Studies suggest that the human sirtuins may function as intracellular regulatory proteins with mono-ADP-ribosyltransferase activity. The protein encoded by this gene is included in class IV of the sirtuin family. (provided by RefSeq)
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.
