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- PDB-6xlh: Asymmetric hydrolysis state of Hsc82 in complex with Aha1 bound w... -

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Basic information

Entry
Database: PDB / ID: 6xlh
TitleAsymmetric hydrolysis state of Hsc82 in complex with Aha1 bound with ADP and ATPgammaS
Components
  • ATP-dependent molecular chaperone HSC82
  • Hsp90 co-chaperone AHA1
KeywordsCHAPERONE / Co-chaperone / activator
Function / homology
Function and homology information


Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / eNOS activation / Extra-nuclear estrogen signaling / HSF1-dependent transactivation / VEGFR2 mediated vascular permeability / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / HSF1 activation / response to oxygen levels / box C/D snoRNP assembly / ATPase activator activity ...Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / eNOS activation / Extra-nuclear estrogen signaling / HSF1-dependent transactivation / VEGFR2 mediated vascular permeability / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / HSF1 activation / response to oxygen levels / box C/D snoRNP assembly / ATPase activator activity / proteasome assembly / Neutrophil degranulation / telomere maintenance / ATP-dependent protein folding chaperone / protein import into nucleus / unfolded protein binding / protein folding / protein-folding chaperone binding / cellular response to heat / protein stabilization / perinuclear region of cytoplasm / protein-containing complex / ATP hydrolysis activity / mitochondrion / ATP binding / nucleus / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Activator of Hsp90 ATPase Aha1, N-terminal domain / Activator of Hsp90 ATPase, N-terminal / Activator of Hsp90 ATPase, Aha1 / Activator of Hsp90 ATPase, N-terminal / Activator of Hsp90 ATPase, N-terminal / Bactericidal permeability-increasing protein; domain 1 / Super Roll / Activator of Hsp90 ATPase homologue 1-like / Activator of Hsp90 ATPase homolog 1-like protein / START-like domain superfamily ...Activator of Hsp90 ATPase Aha1, N-terminal domain / Activator of Hsp90 ATPase, N-terminal / Activator of Hsp90 ATPase, Aha1 / Activator of Hsp90 ATPase, N-terminal / Activator of Hsp90 ATPase, N-terminal / Bactericidal permeability-increasing protein; domain 1 / Super Roll / Activator of Hsp90 ATPase homologue 1-like / Activator of Hsp90 ATPase homolog 1-like protein / START-like domain superfamily / Heat shock protein Hsp90, conserved site / Heat shock hsp90 proteins family signature. / HSP90, C-terminal domain / Heat shock protein Hsp90, N-terminal / Heat shock protein Hsp90 family / Hsp90 protein / Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase / Histidine kinase-like ATPases / Histidine kinase/HSP90-like ATPase superfamily / Ribosomal protein S5 domain 2-type fold / Alpha Beta
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / : / ATP-dependent molecular chaperone HSC82 / Hsp90 co-chaperone AHA1
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.83 Å
AuthorsLiu, Y.X. / Sun, M. / Myasnikov, A.G. / Elnatan, D. / Agard, D.A.
Funding support United States, 5items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
American Heart Association United States
National Institutes of Health/National Cancer Institute (NIH/NCI)U54CA209891 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)S10OD020054 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)S10OD021741 United States
CitationJournal: To Be Published
Title: Cryo-EM structures reveal a multistep mechanism of Hsp90 activation by co-chaperone Aha1
Authors: Liu, Y.X. / Sun, M. / Myasnikov, A.G. / Elnatan, D. / Agard, D.A.
History
DepositionJun 28, 2020Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 30, 2021Provider: repository / Type: Initial release
Revision 1.1Mar 6, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

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Assembly

Deposited unit
A: ATP-dependent molecular chaperone HSC82
B: ATP-dependent molecular chaperone HSC82
C: Hsp90 co-chaperone AHA1
D: Hsp90 co-chaperone AHA1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)242,05710
Polymers240,9804
Non-polymers1,0776
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area21690 Å2
ΔGint-119 kcal/mol
Surface area70180 Å2

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Components

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Protein , 2 types, 4 molecules ABCD

#1: Protein ATP-dependent molecular chaperone HSC82 / 82 kDa heat shock cognate protein / Heat shock protein Hsp90 constitutive isoform


Mass: 81003.594 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: HSC82, YMR186W, YM8010.16 / Production host: Escherichia coli (E. coli) / References: UniProt: P15108
#2: Protein Hsp90 co-chaperone AHA1 / Activator of Hsp90 ATPase protein 1


Mass: 39486.422 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: AHA1, YDR214W, YD8142.16, YD8142B.06 / Production host: Escherichia coli (E. coli) / References: UniProt: Q12449

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Non-polymers , 4 types, 6 molecules

#3: Chemical ChemComp-AGS / PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER / ATP-GAMMA-S / ADENOSINE 5'-(3-THIOTRIPHOSPHATE) / ADENOSINE 5'-(GAMMA-THIOTRIPHOSPHATE) / ADENOSINE-5'-DIPHOSPHATE MONOTHIOPHOSPHATE


Mass: 523.247 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O12P3S / Comment: ATP-gamma-S, energy-carrying molecule analogue*YM
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#5: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: K
#6: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Feature type: SUBJECT OF INVESTIGATION / Comment: ADP, energy-carrying molecule*YM

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Details

Has ligand of interestY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Asymmetric hydrolysis state of Hsc82 in complex with Aha1 bound with ADP and ATPgammaS
Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightUnits: MEGADALTONS / Experimental value: YES
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 72 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

Software
NameVersionClassificationNB
phenix.real_space_refine1.17_3644refinement
PHENIX1.17_3644refinement
CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 2.83 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 112624 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 46.99 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.001113871
ELECTRON MICROSCOPYf_angle_d0.350918722
ELECTRON MICROSCOPYf_chiral_restr0.03862087
ELECTRON MICROSCOPYf_plane_restr0.00232397
ELECTRON MICROSCOPYf_dihedral_angle_d13.27535252

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