The fission yeast FLCN/FNIP complex augments TORC1 repression or activation in response to amino acid (AA) availability.
The fission yeast FLCN/FNIP complex augments TORC1 repression or activation in response to amino acid (AA) availability.
复制标题
DOI:
10.1016/j.isci.2021.103338
复制
发表时间:
2021-11-19
期刊:
影响因子:
5.8
通讯作者:
Motamedi M
中科院分区:
文献类型:
--
作者:
Calvo IA;Sharma S;Paulo JA;Gulka AOD;Boeszoermenyi A;Zhang J;Lombana JM;Palmieri CM;Laviolette LA;Arthanari H;Iliopoulos O;Gygi SP;Motamedi M
The target of Rapamycin complex1 (TORC1) senses and integrates several environmental signals, including amino acid (AA) availability, to regulate cell growth. Folliculin (FLCN) is a tumor suppressor (TS) protein in renal cell carcinoma, which paradoxically activates TORC1 in response to AA supplementation. Few tractable systems for modeling FLCN as a TS are available. Here, we characterize the FLCN-containing complex in Schizosaccharomyces pombe (called BFC) and show that BFC augments TORC1 repression and activation in response to AA starvation and supplementation, respectively. BFC co-immunoprecipitates V-ATPase, a TORC1 modulator, and regulates its activity in an AA-dependent manner. BFC genetic and proteomic networks identify the conserved peptide transmembrane transporter Ptr2 and the phosphoribosylformylglycinamidine synthase Ade3 as new AA-dependent regulators of TORC1. Overall, these data ascribe an additional repressive function to Folliculin in TORC1 regulation and reveal S. pombe as an excellent system for modeling the AA-dependent, FLCN-mediated repression of TORC1 in eukaryotes. The S.pombe Folliculin complex, Bhd1-Fnp1 Complex (BFC) augments repression or activation of TORC1 in response to amino acid levels, similar to a rheostat BFC interacts and regulates V-ATPase activity in response to amino acid levels Proteomic data reveal Ptr2 and Ade3 as novel amino acid-dependent regulators of TORC1 S.pombe is an excellent model for studying the tumor suppressor function of BFC and related proteins Cellular physiology; Cell biology; Functional aspects of cell biology
登录
查看更多内容
影响因子:
7.7
作者:
Fukuda T;Sofyantoro F;Tai YT;Chia KH;Matsuda T;Murase T;Morozumi Y;Tatebe H;Kanki T;Shiozaki K
通讯作者:
Shiozaki K
影响因子:
4
作者:
Alvarez, Beatriz;Moreno, Sergio
通讯作者:
Moreno, Sergio
影响因子:
3.4
作者:
Eng, Jimmy K.;Jahan, Tahmina A.;Hoopmann, Michael R.
通讯作者:
Hoopmann, Michael R.
影响因子:
16
作者:
Binda, Matteo;Peli-Gulli, Marie-Pierre;De Virgilio, Claudio
通讯作者:
De Virgilio, Claudio
影响因子:
2.6
作者:
Hentges, P;Van Driessche, B;Carr, AM
通讯作者:
Carr, AM