Mimivirus-Encoded Nucleotide Translocator VMC1 Targets the Mitochondrial Inner Membrane.
Mimivirus-Encoded Nucleotide Translocator VMC1 Targets the Mitochondrial Inner Membrane.
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拟菌病毒编码的核苷酸易位子VMC1靶向线粒体内膜
DOI:
10.1016/j.jmb.2018.09.012
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发表时间:
2018
影响因子:
5.6
通讯作者:
Rassow
中科院分区:
文献类型:
--
作者:
Ferramosca;Günnewig;Kreimendahl;Schwichtenberg;Sträter;Ҫakar;Guidato;Palmieri;Rassow
Mimivirus (Acanthamoeba polyphaga mimivirus) was the first giant DNA virus identified in an amoeba species. Its genome contains at least 979 genes. One of these,L276, encodes a nucleotide translocator with similarities to mitochondrial metabolite carriers, provisionally named viral mitochondrial carrier 1 (VMC1). In this study, we investigated the intracellular distribution of VMC1 upon expression in HeLa cells and in the yeast Saccharomyces cerevisiae. We found that VMC1 is specifically targeted to mitochondria and to the inner mitochondrial membrane. Newly synthesized VMC1 binds to the mitochondrial outer-membrane protein Tom70 and translocates through the import channel formed by the β-barrel protein Tom40. Derivatization of the four cysteine residues inside Tom40 byN-ethylmaleimide caused a delay in translocation but not a complete occlusion. Cell viability was not reduced by VMC1. Neither the mitochondrial membrane potential nor the intracellular production of reactive oxygen species was affected. Similar to endogenous metabolite carriers, mimivirus-encoded VMC1 appears to act as a specific translocator in the mitochondrial inner membrane. Due to its permeability for deoxyribonucleotides, VMC1 confers to the mitochondria an opportunity to contribute nucleotides for the replication of the large DNA genome of the virus.
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影响因子:
7.7
作者:
Maciej P. Mazurek;P. Prasad;E. Gopal;S. P. Fraser;L. Bolt;Nahit Rizaner;C. Palmer;C. Foster;F. Palmieri;V. Ganapathy;W. Stühmer;M. Djamgoz;M. Mycielska
通讯作者:
M. Mycielska
DOI:
10.1046/j.1432-1327.1998.2580332.x
发表时间:
1998
期刊:
European journal of biochemistry
影响因子:
--
作者:
T. Wylin;M. Baes;C. Brees;G. Mannaerts;M. Fransen;P. Veldhoven
通讯作者:
P. Veldhoven
影响因子:
5.6
作者:
Motz, C;Martin, H;Rassow, J
通讯作者:
Rassow, J
DOI:
--
发表时间:
1997
影响因子:
11.1
作者:
F. E. Weber;G. Minestrini;J. Dyer;M. Werder;D. Boffelli;S. Compassi;E. Wehrli;R. Thomas;G. Schulthess;H. Hauser
通讯作者:
H. Hauser
影响因子:
3.5
作者:
RASSOW, J;HARTL, FU;NEUPERT, W
通讯作者:
NEUPERT, W