+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-7782 | |||||||||||||||||||||
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Title | Calcarisporiella thermophila Hsp104 | |||||||||||||||||||||
Map data | Map was masked with model and equalized to bring out some of the more flexible domains. | |||||||||||||||||||||
Sample |
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Keywords | Spiral hexamer / antagonize toxin / ADP-binding state / CHAPERONE | |||||||||||||||||||||
Function / homology | Function and homology information cellular response to heat / ATP hydrolysis activity / ATP binding / cytoplasm Similarity search - Function | |||||||||||||||||||||
Biological species | Calcarisporiella thermophila (fungus) | |||||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.0 Å | |||||||||||||||||||||
Authors | Zhang K / Pintilie G | |||||||||||||||||||||
Funding support | United States, 6 items
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Citation | Journal: Structure / Year: 2019 Title: Structure of Calcarisporiella thermophila Hsp104 Disaggregase that Antagonizes Diverse Proteotoxic Misfolding Events. Authors: Karolina Michalska / Kaiming Zhang / Zachary M March / Catherine Hatzos-Skintges / Grigore Pintilie / Lance Bigelow / Laura M Castellano / Leann J Miles / Meredith E Jackrel / Edward Chuang ...Authors: Karolina Michalska / Kaiming Zhang / Zachary M March / Catherine Hatzos-Skintges / Grigore Pintilie / Lance Bigelow / Laura M Castellano / Leann J Miles / Meredith E Jackrel / Edward Chuang / Robert Jedrzejczak / James Shorter / Wah Chiu / Andrzej Joachimiak / Abstract: Hsp104 is an AAA+ protein disaggregase with powerful amyloid-remodeling activity. All nonmetazoan eukaryotes express Hsp104 while eubacteria express an Hsp104 ortholog, ClpB. However, most studies ...Hsp104 is an AAA+ protein disaggregase with powerful amyloid-remodeling activity. All nonmetazoan eukaryotes express Hsp104 while eubacteria express an Hsp104 ortholog, ClpB. However, most studies have focused on Hsp104 from Saccharomyces cerevisiae and ClpB orthologs from two eubacterial species. Thus, the natural spectrum of Hsp104/ClpB molecular architectures and protein-remodeling activities remains largely unexplored. Here, we report two structures of Hsp104 from the thermophilic fungus Calcarisporiella thermophila (CtHsp104), a 2.70Å crystal structure and 4.0Å cryo-electron microscopy structure. Both structures reveal left-handed, helical assemblies with all domains clearly resolved. We thus provide the highest resolution and most complete view of Hsp104 hexamers to date. We also establish that CtHsp104 antagonizes several toxic protein-misfolding events in vivo where S. cerevisiae Hsp104 is ineffective, including rescue of TDP-43, polyglutamine, and α-synuclein toxicity. We suggest that natural Hsp104 variation is an invaluable, untapped resource for illuminating therapeutic disaggregases for fatal neurodegenerative diseases. | |||||||||||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_7782.map.gz | 8.2 MB | EMDB map data format | |
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Header (meta data) | emd-7782-v30.xml emd-7782.xml | 16.9 KB 16.9 KB | Display Display | EMDB header |
Images | emd_7782.png | 214.2 KB | ||
Filedesc metadata | emd-7782.cif.gz | 6.6 KB | ||
Others | emd_7782_additional.map.gz | 59.9 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-7782 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-7782 | HTTPS FTP |
-Validation report
Summary document | emd_7782_validation.pdf.gz | 420.6 KB | Display | EMDB validaton report |
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Full document | emd_7782_full_validation.pdf.gz | 420.2 KB | Display | |
Data in XML | emd_7782_validation.xml.gz | 5.8 KB | Display | |
Data in CIF | emd_7782_validation.cif.gz | 6.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7782 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7782 | HTTPS FTP |
-Related structure data
Related structure data | 6d00MC 6azyC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_7782.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Map was masked with model and equalized to bring out some of the more flexible domains. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.06 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Original reconstructed map.
File | emd_7782_additional.map | ||||||||||||
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Annotation | Original reconstructed map. | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Calcarisporiella thermophila Hsp104 with ADP
Entire | Name: Calcarisporiella thermophila Hsp104 with ADP |
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Components |
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-Supramolecule #1: Calcarisporiella thermophila Hsp104 with ADP
Supramolecule | Name: Calcarisporiella thermophila Hsp104 with ADP / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Calcarisporiella thermophila (fungus) |
Molecular weight | Theoretical: 600 KDa |
-Macromolecule #1: Calcarisporiella thermophila Hsp104
Macromolecule | Name: Calcarisporiella thermophila Hsp104 / type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO |
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Source (natural) | Organism: Calcarisporiella thermophila (fungus) |
Molecular weight | Theoretical: 98.911109 KDa |
Recombinant expression | Organism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria) |
Sequence | String: AMSSMQFTDK ATETLNAAAK YAAENSHVQL HPSHVAVVML DEENSLFRSI LEKAGGDVVS IERGFKKIMV RQPSQDPPPT EMGHSPELA KLLHYAHEHM KKQRDLYIAQ DHLILALADL PSMAQVLKEG GVTKKSLENA VTHVRGNRRV ESKSAEEAYE A LSKYCIDL ...String: AMSSMQFTDK ATETLNAAAK YAAENSHVQL HPSHVAVVML DEENSLFRSI LEKAGGDVVS IERGFKKIMV RQPSQDPPPT EMGHSPELA KLLHYAHEHM KKQRDLYIAQ DHLILALADL PSMAQVLKEG GVTKKSLENA VTHVRGNRRV ESKSAEEAYE A LSKYCIDL TELAASGKLD PVIGRDEIIS RVIRVLSRRT KNNPCLVGEP GVGKTAIAEG LANRIVKGDI PSSLQKKVYS LD IGSLLAG AKYRGEFEER LKAVLKELKE AQAIVFIDEI HTVLGAGKSE GAIDAANLLK PMLARGELRC IGATTLTEYR QYV EKDPAF ERRFQLVMVE EPSVTDTISI LRGLKERYET HHGVRIADAA IVAAAQLAAR YITQRFMPDK AIDLIDEACA NTRV QLDSQ PEAIDKLERR HLQLEVEATA LEKEKDAASK QRLQEVRAEM ARIQEELRPL KMKYESEKGR LDEIRNLSQR LDELK AKAE DAERRYDLAR AADIRYYAIP DLEKRLAQLQ AEKSQADAER ADGLLAEVVG PDQIMEVVSR WTGIPVSNLQ RSEKEK LLH MEEYMKQHVV GQDEAIKAIC DAIRLSRTGL QNRNRPLASF LFLGPTGCGK TLCVKELAAF LFNDPGAIVR IDMSEYM EK HAVSRLVGAP PGYIGHDEGG QLTEAVRRRP YTVVLFDEME KAHKDVSNLL LQILDDGHCT DSKGRRVDFK NTIIVMTS N LGADLFELDE GDKVSQATKN AVLATARRHF ANEFINRIDE LIVFNRLTPS NIRKIVDVRL KEVQERLDEK QITLDVDDK AKDLLAQQGF DPVYGARPLN RLIQHALLTQ LSRLLLDGGV RPGEIAKVTV DQEGEIIVIR NHGIESPAPW ADEDMVEDED MEI |
-Macromolecule #2: ADENOSINE-5'-DIPHOSPHATE
Macromolecule | Name: ADENOSINE-5'-DIPHOSPHATE / type: ligand / ID: 2 / Number of copies: 12 / Formula: ADP |
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Molecular weight | Theoretical: 427.201 Da |
Chemical component information | ChemComp-ADP: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 0.5 mg/mL |
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Buffer | pH: 8 Details: 20 mM HEPES-KOH, 100 mM KCl, 2 mM MgCl2, 2 mM ADP and 4 mM DTT |
Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 25 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Specialist optics | Energy filter - Name: GIF Quantum LS |
Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 3-30 / Number grids imaged: 2 / Number real images: 3786 / Average exposure time: 6.0 sec. / Average electron dose: 31.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Calibrated defocus max: 2.5 µm / Calibrated defocus min: 0.8 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 130000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Protocol: FLEXIBLE FIT |
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Output model | PDB-6d00: |