9pkq: Difference between revisions

Latest revision as of 07:37, 19 March 2026

Structure of the cytoplasmic domain of unliganded human Tom70, open and closed conformations

Structural highlights

9pkq is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 2Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

[1] 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

[2] 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

[3] 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

[4] 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

[5] 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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@@ Line 1: / Line 1: @@
-'''Unreleased structure'''
-The entry 9pkq is ON HOLD  until Paper Publication
+==Structure of the cytoplasmic domain of unliganded human Tom70, open and closed conformations==
+<StructureSection load='9pkq' size='340' side='right'caption='[[9pkq]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
-Authors:
+== Structural highlights ==
+<table><tr><td colspan='2'>[[9pkq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9PKQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9PKQ FirstGlance]. <br>
-Description:
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
-[[Category: Unreleased Structures]]
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9pkq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9pkq OCA], [https://pdbe.org/9pkq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9pkq RCSB], [https://www.ebi.ac.uk/pdbsum/9pkq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9pkq ProSAT]</span></td></tr>
+</table>
+== Function ==
+[https://www.uniprot.org/uniprot/TOM70_HUMAN 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).<ref>PMID:12526792</ref> <ref>PMID:20628368</ref> <ref>PMID:25609812</ref> <ref>PMID:32728199</ref> <ref>PMID:35025629</ref>
+== References ==
+<references/>
+__TOC__
+</StructureSection>
+[[Category: Homo sapiens]]
+[[Category: Large Structures]]
+[[Category: Bachochin MJ]]
+[[Category: Cook BD]]
+[[Category: Corbett KD]]
+[[Category: Herzik Jr MA]]
+[[Category: Komives EA]]
+[[Category: McGuire KL]]
+[[Category: Silletti S]]
+[[Category: Ye Q]]

9pkq: Difference between revisions

Latest revision as of 07:37, 19 March 2026

Structure of the cytoplasmic domain of unliganded human Tom70, open and closed conformations

Structural highlights

Function

References

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