| Structural highlights
Function
TOM70_HUMAN Acts as a receptor of the preprotein translocase complex of the outer mitochondrial membrane (TOM complex) (PubMed:12526792). Recognizes and mediates the translocation of mitochondrial preproteins from the cytosol into the mitochondria in a chaperone dependent manner (PubMed:12526792, PubMed:35025629). Mediates TBK1 and IRF3 activation induced by MAVS in response to Sendai virus infection and promotes host antiviral responses during virus infection (PubMed:20628368, PubMed:25609812, PubMed:32728199). Upon Sendai virus infection, recruits HSP90AA1:IRF3:BAX in mitochondrion and the complex induces apoptosis (PubMed:25609812).[1] [2] [3] [4] [5]
References
- ↑ Young JC, Hoogenraad NJ, Hartl FU. Molecular chaperones Hsp90 and Hsp70 deliver preproteins to the mitochondrial import receptor Tom70. Cell. 2003 Jan 10;112(1):41-50. PMID:12526792 doi:10.1016/s0092-8674(02)01250-3
- ↑ Liu XY, Wei B, Shi HX, Shan YF, Wang C. Tom70 mediates activation of interferon regulatory factor 3 on mitochondria. Cell Res. 2010 Sep;20(9):994-1011. PMID:20628368 doi:10.1038/cr.2010.103
- ↑ Wei B, Cui Y, Huang Y, Liu H, Li L, Li M, Ruan KC, Zhou Q, Wang C. Tom70 mediates Sendai virus-induced apoptosis on mitochondria. J Virol. 2015 Apr;89(7):3804-18. PMID:25609812 doi:10.1128/JVI.02959-14
- ↑ Jiang HW, Zhang HN, Meng QF, Xie J, Li Y, Chen H, Zheng YX, Wang XN, Qi H, Zhang J, Wang PH, Han ZG, Tao SC. SARS-CoV-2 Orf9b suppresses type I interferon responses by targeting TOM70. Cell Mol Immunol. 2020 Sep;17(9):998-1000. doi: 10.1038/s41423-020-0514-8. Epub, 2020 Jul 29. PMID:32728199 doi:https://dx.doi.org/10.1038/s41423-020-0514-8
- ↑ Li X, Straub J, Medeiros TC, Mehra C, den Brave F, Peker E, Atanassov I, Stillger K, Michaelis JB, Burbridge E, Adrain C, Münch C, Riemer J, Becker T, Pernas LF. Mitochondria shed their outer membrane in response to infection-induced stress. Science. 2022 Jan 14;375(6577):eabi4343. PMID:35025629 doi:10.1126/science.abi4343
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