Mitochondrial Sirtuin Network Reveals Dynamic SIRT3-Dependent Deacetylation in Response to Membrane Depolarization.
Mitochondrial Sirtuin Network Reveals Dynamic SIRT3-Dependent Deacetylation in Response to Membrane Depolarization.
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DOI:
10.1016/j.cell.2016.10.016
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发表时间:
2016-11-03
期刊:
影响因子:
64.5
通讯作者:
Haigis, Marcia C.
中科院分区:
文献类型:
--
作者:
Yang, Wen;Nagasawa, Koji;Munch, Christian;Xu, Yingjie;Satterstrom, Kyle;Jeong, Seungmin;Hayes, Sebastian D.;Jedrychowski, Mark P.;Vyas, F. Sejal;Zaganjor, Elma;Guarani, Virginia;Ringel, Alison E.;Gygi, Steven P.;Harper, J. Wade;Haigis, Marcia C.
Mitochondrial sirtuins, SIRT3-5, are NAD+-dependent deacylases and ADP-ribosyltransferases critical for stress responses. However, a comprehensive understanding of sirtuin targets, regulation of sirtuin activity, and the relationships between sirtuins remains a key challenge in mitochondrial physiology. Here, we employ systematic interaction proteomics to elucidate the mitochondrial sirtuin protein interaction landscape. This work reveals sirtuin interactions with numerous functional modules within mitochondria, identifies candidate sirtuin substrates, and uncovers a fundamental role for sequestration of SIRT3 by ATP synthase in mitochondrial homeostasis. In healthy mitochondria, a pool of SIRT3 binds ATP synthase, but upon matrix pH reduction with concomitant loss of mitochondrial membrane potential, SIRT3 dissociates. This release correlates with rapid deacetylation of matrix proteins and SIRT3 is required for recovery of membrane potential. In vitro reconstitution experiments, as well as Crispr/Cas9 engineered cells, indicate that pH-dependent SIRT3 release requires H135 in ATP5O. Our SIRT3-5 interaction network provides a framework for discovering novel biological functions regulated by mitochondrial sirtuins. Upon loss of mitochondrial membrane potential SIRT3 is released from the mitochondrial matrix and its return is neccesary for a rapid restoration of mitochondrial health
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影响因子:
64.5
作者:
Huttlin EL;Jedrychowski MP;Elias JE;Goswami T;Rad R;Beausoleil SA;Villén J;Haas W;Sowa ME;Gygi SP
通讯作者:
Gygi SP
影响因子:
16
作者:
Hallows WC;Yu W;Smith BC;Devries MK;Ellinger JJ;Someya S;Shortreed MR;Prolla T;Markley JL;Smith LM;Zhao S;Guan KL;Denu JM
通讯作者:
Denu JM
影响因子:
16
作者:
Laurent, Gaelle;German, Natalie J.;Saha, Asish K.;de Boer, Vincent C. J.;Davies, Michael;Koves, Timothy R.;Dephoure, Noah;Fischer, Frank;Boanca, Gina;Vaitheesvaran, Bhavapriya;Lovitch, Scott B.;Sharpe, Arlene H.;Kurland, Irwin J.;Steegborn, Clemens;Gygi, Steven P.;Muoio, Deborah M.;Ruderman, Neil B.;Haigis, Marcia C.
通讯作者:
Haigis, Marcia C.
DOI:
10.1007/978-1-62703-637-5_11
发表时间:
2013-01-01
期刊:
SIRTUINS: METHODS AND PROTOCOLS
影响因子:
--
作者:
Hubbard, Basil P.;Sinclair, David A.
通讯作者:
Sinclair, David A.
影响因子:
4.7
作者:
LAI, JCK;COOPER, AJL
通讯作者:
COOPER, AJL