Validating an artificial organelle: Studies of lipid droplet-specific proteins on adiposome platform.
Validating an artificial organelle: Studies of lipid droplet-specific proteins on adiposome platform.
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验证人工细胞器:脂肪体平台上脂滴特异性蛋白质的研究
DOI:
10.1016/j.isci.2021.102834
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发表时间:
2021-08-20
期刊:
影响因子:
5.8
通讯作者:
Liu P
中科院分区:
文献类型:
--
作者:
Ma X;Zhi Z;Zhang S;Zhou C;Mechler A;Liu P
New strategies are urgently needed to characterize the functions of the lipid droplet (LD). Here, adiposome, an artificial LD mimetic platform, was validated by comparative in vitro bioassays. Scatchard analysis found that the binding of perilipin 2 (PLIN2) to the adiposome surface was saturable. Phosphatidylinositol (PtdIns) was found to inhibit PLIN2 binding while it did not impede perilipin 3 (PLIN3). Structural analysis combined with mutagenesis revealed that the 73rd glutamic acid of PLIN2 is significant for the effect of PtdIns on the PLIN2 binding. Furthermore, adiposome was also found to be an ideal platform for in situ enzymatic activity measurement of adipose triglyceride lipase (ATGL). The significant serine mutants of ATGL were found to cause the loss of lipase activity. Our study demonstrates the adiposome as a powerful, manipulatable model system that mimics the function of LD for binding and enzymatic activity studies of LD proteins in vitro. An artificial organelle was validated for the targeting and regulation of LD proteins Binding affinity analysis of PLIN2 targeting on artificial LD was performed PtdIns and the 73rd glutamic acid in PLIN2 affect the targeting of PLIN2 to LD In situ enzymatic activity of ATGL was demonstrated and measured via artificial LD Cell biology; Functional aspects of cell biology; Biophysics
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DOI:
10.1074/jbc.m115.682203
发表时间:
2015-10-30
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Boeszoermenyi A;Nagy HM;Arthanari H;Pillip CJ;Lindermuth H;Luna RE;Wagner G;Zechner R;Zangger K;Oberer M
通讯作者:
Oberer M
DOI:
10.1093/bioinformatics/btv362
发表时间:
2015-10-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Liu W;Xie Y;Ma J;Luo X;Nie P;Zuo Z;Lahrmann U;Zhao Q;Zheng Y;Zhao Y;Xue Y;Ren J
通讯作者:
Ren J
影响因子:
5.8
作者:
Gautier, Romain;Douguet, Dominique;Drin, Guillaume
通讯作者:
Drin, Guillaume
影响因子:
6.5
作者:
Lake, AC;Sun, Y;Gimeno, RE
通讯作者:
Gimeno, RE
影响因子:
7.7
作者:
Barneda D;Planas-Iglesias J;Gaspar ML;Mohammadyani D;Prasannan S;Dormann D;Han GS;Jesch SA;Carman GM;Kagan V;Parker MG;Ktistakis NT;Klein-Seetharaman J;Dixon AM;Henry SA;Christian M
通讯作者:
Christian M