BNIP3 and NIX mediate Mieap-induced accumulation of lysosomal proteins within mitochondria.
BNIP3 and NIX mediate Mieap-induced accumulation of lysosomal proteins within mitochondria.
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DOI:
10.1371/journal.pone.0030767
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Arakawa H
中科院分区:
文献类型:
--
作者:
Nakamura Y;Kitamura N;Shinogi D;Yoshida M;Goda O;Murai R;Kamino H;Arakawa H
Mieap, a p53-inducible protein, controls mitochondrial quality by repairing unhealthy mitochondria. During repair, Mieap induces the accumulation of intramitochondrial lysosomal proteins (designated MALM for Mieap-induced accumulation of lysosome-like organelles within mitochondria) by interacting with NIX, leading to the elimination of oxidized mitochondrial proteins. Here, we report that an additional mitochondrial outer membrane protein, BNIP3, is also involved in MALM. BNIP3 interacts with Mieap in a reactive oxygen species (ROS)-dependent manner via the BH3 domain of BNIP3 and the coiled-coil domains of Mieap. The knockdown of endogenous BNIP3 expression severely inhibited MALM. Although the overexpression of either BNIP3 or NIX did not cause a remarkable change in the mitochondrial membrane potential (MMP), the co-expression of all three exogenous proteins, Mieap, BNIP3 and NIX, caused a dramatic reduction in MMP, implying that the physical interaction of Mieap, BNIP3 and NIX at the mitochondrial outer membrane may regulate the opening of a pore in the mitochondrial double membrane. This effect was not related to cell death. These results suggest that two mitochondrial outer membrane proteins, BNIP3 and NIX, mediate MALM in order to maintain mitochondrial integrity. The physical interaction of Mieap, BNIP3 and NIX at the mitochondrial outer membrane may play a critical role in the translocation of lysosomal proteins from the cytoplasm to the mitochondrial matrix.
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影响因子:
3.4
作者:
Dorn GW 2nd
通讯作者:
Dorn GW 2nd
DOI:
10.1084/jem.186.12.1975
发表时间:
1997-12-15
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Chen G;Ray R;Dubik D;Shi L;Cizeau J;Bleackley RC;Saxena S;Gietz RD;Greenberg AH
通讯作者:
Greenberg AH
影响因子:
3.7
作者:
Miyamoto Y;Kitamura N;Nakamura Y;Futamura M;Miyamoto T;Yoshida M;Ono M;Ichinose S;Arakawa H
通讯作者:
Arakawa H
影响因子:
3.7
作者:
Kitamura N;Nakamura Y;Miyamoto Y;Miyamoto T;Kabu K;Yoshida M;Futamura M;Ichinose S;Arakawa H
通讯作者:
Arakawa H
影响因子:
3.9
作者:
Kim, JY;Cho, JJ;Park, JH
通讯作者:
Park, JH