About Sirtuin 1
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 I of the sirtuin family. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2008]

About DyLight 405
DyLight™ 405 has an excitation peak at 400 nm and an emission peak at 420 nm and is spectrally similar to Alexa Fluor™ 405 and Cascade Blue. DyLight™ 405 is most commonly used in flow cytometery and fluorescence microscopy applications.