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Sirtuin 1, also known as NAD-dependent deacetylase sirtuin-1, is a protein that in humans is encoded by the SIRT1 gene. [5] [6] [7]SIRT1 stands for sirtuin (silent mating type information regulation 2 homolog) 1 (S. cerevisiae), referring to the fact that its sirtuin homolog (biological equivalent across species) in yeast (Saccharomyces cerevisiae) is Sir2.
In yeast, roundworms, and fruitflies, sir2 is the name of one of the sirtuin-type proteins (see table below). [16] Mammals possess seven sirtuins (SIRT1–7) that occupy different subcellular compartments: SIRT1, SIRT6 and SIRT7 are predominantly in the nucleus, SIRT2 in the cytoplasm, and SIRT3, SIRT4 and SIRT5 in the mitochondria. [2]
Other examples of such products are butein, piceatannol, isoliquiritigenin, fisetin, and quercetin. [citation needed] Sirtuins depend on the crucial cellular molecule called nicotinamide adenine dinucleotide (NAD+) for their function. Falling NAD+ levels during aging may adversely impact sirtuin maintenance of DNA integrity and ability to ...
The artificial landscapes presented herein for single-objective optimization problems are taken from Bäck, [1] Haupt et al. [2] and from Rody Oldenhuis software. [3] Given the number of problems (55 in total), just a few are presented here. The test functions used to evaluate the algorithms for MOP were taken from Deb, [4] Binh et al. [5] and ...
A comparison of the convergence of gradient descent with optimal step size (in green) and conjugate vector (in red) for minimizing a quadratic function associated with a given linear system. Conjugate gradient, assuming exact arithmetic, converges in at most n steps, where n is the size of the matrix of the system (here n = 2).
Members of the sirtuin family are characterized by a sirtuin core domain and grouped into four classes, and the protein encoded by this gene is included in class I of the sirtuin family. [5] The human sirtuins have a range of molecular functions and have emerged as important proteins in aging, stress resistance, and metabolic regulation.
75387 Ensembl ENSG00000089163 ENSMUSG00000029524 UniProt Q9Y6E7 Q8R216 RefSeq (mRNA) NM_012240 NM_001385733 NM_001385734 NM_001385735 NM_001167691 NM_133760 RefSeq (protein) NP_036372 NP_001161163 NP_598521 Location (UCSC) Chr 12: 120.3 – 120.31 Mb Chr 5: 115.48 – 115.48 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Sirtuin 4, also known as SIRT4, is a mitochondrial protein ...
51547 209011 Ensembl ENSG00000187531 ENSMUSG00000025138 UniProt Q9NRC8 Q8BKJ9 RefSeq (mRNA) NM_016538 NM_153056 NM_001363439 RefSeq (protein) NP_057622 NP_694696 NP_001350368 Location (UCSC) Chr 17: 81.91 – 81.92 Mb Chr 11: 120.51 – 120.52 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse NAD-dependent deacetylase sirtuin 7 is an enzyme that in humans is encoded by the SIRT7 gene ...