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Open data
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Basic information
| Entry | Database: PDB / ID: 9l8p | ||||||||||||||||||
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| Title | in situ structure of mtHsp60-Hsp10 | ||||||||||||||||||
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Keywords | CHAPERONE / mtHsp60-Hsp10 | ||||||||||||||||||
| Function / homology | Function and homology informationcoated vesicle / isotype switching to IgG isotypes / mitochondrial unfolded protein response / TFAP2A acts as a transcriptional repressor during retinoic acid induced cell differentiation / apolipoprotein A-I binding / lipopolysaccharide receptor complex / protein import into mitochondrial intermembrane space / high-density lipoprotein particle binding / migrasome / cysteine-type endopeptidase activator activity ...coated vesicle / isotype switching to IgG isotypes / mitochondrial unfolded protein response / TFAP2A acts as a transcriptional repressor during retinoic acid induced cell differentiation / apolipoprotein A-I binding / lipopolysaccharide receptor complex / protein import into mitochondrial intermembrane space / high-density lipoprotein particle binding / migrasome / cysteine-type endopeptidase activator activity / positive regulation of T cell mediated immune response to tumor cell / negative regulation of execution phase of apoptosis / Mitochondrial protein import / positive regulation of macrophage activation / chaperonin ATPase / apoptotic mitochondrial changes / MyD88-dependent toll-like receptor signaling pathway / biological process involved in interaction with symbiont / 'de novo' protein folding / B cell proliferation / positive regulation of interferon-alpha production / positive regulation of interleukin-10 production / B cell activation / RHOG GTPase cycle / DNA replication origin binding / apolipoprotein binding / response to unfolded protein / positive regulation of execution phase of apoptosis / Mitochondrial unfolded protein response (UPRmt) / chaperone-mediated protein complex assembly / isomerase activity / positive regulation of interleukin-12 production / response to cold / clathrin-coated pit / protein folding chaperone / intrinsic apoptotic signaling pathway / Mitochondrial protein degradation / secretory granule / ATP-dependent protein folding chaperone / T cell activation / protein maturation / lipopolysaccharide binding / protein refolding / positive regulation of interleukin-6 production / positive regulation of type II interferon production / osteoblast differentiation / positive regulation of T cell activation / sperm midpiece / p53 binding / : / double-stranded RNA binding / single-stranded DNA binding / protein-folding chaperone binding / protein folding / early endosome / mitochondrial inner membrane / protein stabilization / mitochondrial matrix / ubiquitin protein ligase binding / negative regulation of apoptotic process / enzyme binding / cell surface / ATP hydrolysis activity / protein-containing complex / mitochondrion / : / RNA binding / extracellular exosome / ATP binding / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||||||||
| Method | ELECTRON MICROSCOPY / subtomogram averaging / cryo EM / Resolution: 7.3 Å | ||||||||||||||||||
Authors | Jung, M. / Roh, S. | ||||||||||||||||||
| Funding support | Korea, Republic Of, 5items
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Citation | Journal: Sci Adv / Year: 2025Title: In situ characterization of mitochondrial Hsp60-Hsp10 chaperone complex under folding stress. Authors: Mingyu Jung / Minjung Kim / Su Jin Ham / Jongkyeong Chung / Soung-Hun Roh / ![]() Abstract: Mitochondrial proteostasis is critical for maintaining mitochondrial function, and its disruption induces mitochondrial unfolded protein response, which up-regulates chaperones to alleviate protein- ...Mitochondrial proteostasis is critical for maintaining mitochondrial function, and its disruption induces mitochondrial unfolded protein response, which up-regulates chaperones to alleviate protein-folding stress. However, how these chaperones mitigate protein-folding stress remains unclear. Here, using correlated cryo-electron tomography, we show that folding stress triggers marked mitochondrial morphological changes, including the accumulation of amorphous protein aggregates and increased abundance and spatial clustering of the mitochondrial heat shock protein 60-heat shock protein 10 (mtHsp60-Hsp10) complex. Subtomogram analysis revealed the in situ architecture and conformational heterogeneity of mtHsp60-Hsp10 under stress, which retains its canonical double-ring structure while adopting distinct football, half-football, and bullet-like states. Notably, the mtHsp60-Hsp10 complex encapsulates unstructured substrates through conserved hydrophobic interactions. We further demonstrate that knockdown of the mtHsp60-Hsp10 complex exacerbates folding stress, as evidenced by elevated cellular stress responses and activation of mitophagy. Our study defines the in situ structural properties of the mtHsp60-Hsp10 complex and provides mechanistic insight into how it safeguards mitochondrial proteostasis under folding stress. | ||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9l8p.cif.gz | 1.9 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb9l8p.ent.gz | 1.3 MB | Display | PDB format |
| PDBx/mmJSON format | 9l8p.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/l8/9l8p ftp://data.pdbj.org/pub/pdb/validation_reports/l8/9l8p | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 62702MC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Assembly
| Deposited unit | ![]()
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| Noncrystallographic symmetry (NCS) | NCS domain:
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About Yorodumi




Homo sapiens (human)
Korea, Republic Of, 5items
Citation








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