| Structural highlights
Function
SIR3_HUMAN NAD-dependent protein deacetylase. Activates mitochondrial target proteins, including ACSS1, IDH2 and GDH by deacetylating key lysine residues. Contributes to the regulation of the cellular energy metabolism. Important for regulating tissue-specific ATP levels.[1] [2] [3] [4]
Publication Abstract from PubMed
Two new analogs of halistanol sulfate (1) were isolated from a marine sponge Halichondria sp. collected at Hachijo-jima Island. Structures of these new halistanol sulfates I (2) and J (3) were elucidated by spectral analyses. Compounds 1-3 showed inhibitory activity against SIRT 1-3 with IC50 ranges of 45.9-67.9, 18.9-21.1 and 21.8-37.5 muM, respectively. X-ray crystallography of the halistanol sulfate (1) and SIRT3 complex clearly indicates that 1 binds to the exosite of SIRT3 that we have discovered in this study.
Halistanol sulfates I and J, new SIRT1-3 inhibitory steroid sulfates from a marine sponge of the genus Halichondria.,Nakamura F, Kudo N, Tomachi Y, Nakata A, Takemoto M, Ito A, Tabei H, Arai D, de Voogd N, Yoshida M, Nakao Y, Fusetani N J Antibiot (Tokyo). 2018 Feb;71(2):273-278. doi: 10.1038/ja.2017.145. Epub 2017, Nov 29. PMID:29184120[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Schwer B, Bunkenborg J, Verdin RO, Andersen JS, Verdin E. Reversible lysine acetylation controls the activity of the mitochondrial enzyme acetyl-CoA synthetase 2. Proc Natl Acad Sci U S A. 2006 Jul 5;103(27):10224-9. Epub 2006 Jun 20. PMID:16788062 doi:10.1073/pnas.0603968103
- ↑ Schlicker C, Gertz M, Papatheodorou P, Kachholz B, Becker CF, Steegborn C. Substrates and regulation mechanisms for the human mitochondrial sirtuins Sirt3 and Sirt5. J Mol Biol. 2008 Oct 10;382(3):790-801. doi: 10.1016/j.jmb.2008.07.048. Epub 2008, Jul 25. PMID:18680753 doi:10.1016/j.jmb.2008.07.048
- ↑ Ahn BH, Kim HS, Song S, Lee IH, Liu J, Vassilopoulos A, Deng CX, Finkel T. A role for the mitochondrial deacetylase Sirt3 in regulating energy homeostasis. Proc Natl Acad Sci U S A. 2008 Sep 23;105(38):14447-52. doi:, 10.1073/pnas.0803790105. Epub 2008 Sep 15. PMID:18794531 doi:10.1073/pnas.0803790105
- ↑ Jin L, Wei W, Jiang Y, Peng H, Cai J, Mao C, Dai H, Choy W, Bemis JE, Jirousek MR, Milne JC, Westphal CH, Perni RB. Crystal structures of human SIRT3 displaying substrate-induced conformational changes. J Biol Chem. 2009 Sep 4;284(36):24394-405. Epub 2009 Jun 16. PMID:19535340 doi:10.1074/jbc.M109.014928
- ↑ Nakamura F, Kudo N, Tomachi Y, Nakata A, Takemoto M, Ito A, Tabei H, Arai D, de Voogd N, Yoshida M, Nakao Y, Fusetani N. Halistanol sulfates I and J, new SIRT1-3 inhibitory steroid sulfates from a marine sponge of the genus Halichondria. J Antibiot (Tokyo). 2018 Feb;71(2):273-278. doi: 10.1038/ja.2017.145. Epub 2017, Nov 29. PMID:29184120 doi:https://dx.doi.org/10.1038/ja.2017.145
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