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- PDB-9ndj: Cryo-EM structure of the endogenous ClpP1/ClpP2 heterocomplex fro... -

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Basic information

Entry
Database: PDB / ID: 9ndj
TitleCryo-EM structure of the endogenous ClpP1/ClpP2 heterocomplex from Pseudomonas aeruginosa bound to the AAA+ ClpX unfoldase.
Components
  • (ATP-dependent Clp protease proteolytic ...) x 2
  • ATP-dependent Clp protease ATP-binding subunit ClpX
  • Unknown substrate
KeywordsCHAPERONE / ClpXP / full-engaged state / AAA protease
Function / homology
Function and homology information


HslUV protease complex / endopeptidase Clp / endopeptidase Clp complex / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / proteolysis involved in protein catabolic process / ATP-dependent protein folding chaperone / unfolded protein binding / ATPase binding / protein dimerization activity ...HslUV protease complex / endopeptidase Clp / endopeptidase Clp complex / ATP-dependent peptidase activity / protein quality control for misfolded or incompletely synthesized proteins / proteolysis involved in protein catabolic process / ATP-dependent protein folding chaperone / unfolded protein binding / ATPase binding / protein dimerization activity / cell division / serine-type endopeptidase activity / ATP hydrolysis activity / zinc ion binding / ATP binding / cytoplasm
Similarity search - Function
Zinc finger, ClpX C4-type superfamily / ClpX C4-type zinc finger / Clp protease, ATP-binding subunit ClpX, bacteria / ClpX C4-type zinc finger / Clp protease, ATP-binding subunit ClpX / Zinc finger, ClpX C4-type / ClpX zinc binding (ZB) domain profile. / : / ClpP, Ser active site / Endopeptidase Clp serine active site. ...Zinc finger, ClpX C4-type superfamily / ClpX C4-type zinc finger / Clp protease, ATP-binding subunit ClpX, bacteria / ClpX C4-type zinc finger / Clp protease, ATP-binding subunit ClpX / Zinc finger, ClpX C4-type / ClpX zinc binding (ZB) domain profile. / : / ClpP, Ser active site / Endopeptidase Clp serine active site. / ClpP, histidine active site / Endopeptidase Clp histidine active site. / ATP-dependent Clp protease proteolytic subunit / Clp protease proteolytic subunit /Translocation-enhancing protein TepA / Clp protease / Clp ATPase, C-terminal / C-terminal, D2-small domain, of ClpB protein / C-terminal, D2-small domain, of ClpB protein / AAA domain (Cdc48 subfamily) / ClpP/crotonase-like domain superfamily / ATPase, AAA-type, core / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / ATP-dependent Clp protease proteolytic subunit / ATP-dependent Clp protease ATP-binding subunit ClpX / ATP-dependent Clp protease proteolytic subunit
Similarity search - Component
Biological speciesPseudomonas aeruginosa (bacteria)
Escherichia coli (E. coli)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.87 Å
AuthorsGhanbarpour, A. / Zhang, J.J. / Baker, T.A. / Davis, J.H. / Sauer, R.T.
Funding support United States, 3items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)R01-GM144542 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35-GM141517 United States
National Science Foundation (NSF, United States)2046778 United States
CitationJournal: To Be Published
Title: Cryo-EM structure of ClpX from Pseudomonas aeruginosa
Authors: Ghanbarpour, A. / Sauer, R.T. / Davis, J.H.
History
DepositionFeb 18, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Oct 1, 2025Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
F: ATP-dependent Clp protease ATP-binding subunit ClpX
A: ATP-dependent Clp protease ATP-binding subunit ClpX
B: ATP-dependent Clp protease ATP-binding subunit ClpX
C: ATP-dependent Clp protease ATP-binding subunit ClpX
D: ATP-dependent Clp protease ATP-binding subunit ClpX
E: ATP-dependent Clp protease ATP-binding subunit ClpX
G: Unknown substrate
H: ATP-dependent Clp protease proteolytic subunit
I: ATP-dependent Clp protease proteolytic subunit
J: ATP-dependent Clp protease proteolytic subunit
K: ATP-dependent Clp protease proteolytic subunit
L: ATP-dependent Clp protease proteolytic subunit
M: ATP-dependent Clp protease proteolytic subunit
N: ATP-dependent Clp protease proteolytic subunit
P: ATP-dependent Clp protease proteolytic subunit
Q: ATP-dependent Clp protease proteolytic subunit
R: ATP-dependent Clp protease proteolytic subunit
S: ATP-dependent Clp protease proteolytic subunit
T: ATP-dependent Clp protease proteolytic subunit
U: ATP-dependent Clp protease proteolytic subunit
V: ATP-dependent Clp protease proteolytic subunit
hetero molecules


Theoretical massNumber of molelcules
Total (without water)612,64533
Polymers609,61621
Non-polymers3,02912
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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ATP-dependent Clp protease proteolytic ... , 2 types, 14 molecules HIJKLMNPQRSTUV

#3: Protein
ATP-dependent Clp protease proteolytic subunit / Endopeptidase Clp


Mass: 23529.143 Da / Num. of mol.: 7
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa (bacteria)
Gene: clpP_4, clpP, ALP65_02974, CAZ10_25705, GNQ48_00520, GUL26_19790, IPC1295_05810, PAERUG_P19_London_7_VIM_2_05_10_05994
Production host: Pseudomonas aeruginosa (bacteria) / References: UniProt: A0A072ZHR6, endopeptidase Clp
#4: Protein
ATP-dependent Clp protease proteolytic subunit / Endopeptidase Clp


Mass: 23167.191 Da / Num. of mol.: 7
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa (bacteria) / Gene: clpP, ALP65_00001 / Production host: Pseudomonas aeruginosa (bacteria) / References: UniProt: A0A3M5ER03, endopeptidase Clp

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Protein / Protein/peptide , 2 types, 7 molecules FABCDEG

#1: Protein
ATP-dependent Clp protease ATP-binding subunit ClpX


Mass: 47049.688 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa (bacteria) / Gene: clpX, ALP65_100029 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A3M5DFV1
#2: Protein/peptide Unknown substrate


Mass: 443.539 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / Production host: Escherichia coli (E. coli)

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Non-polymers , 3 types, 12 molecules

#5: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical
ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: ATP, energy-carrying molecule*YM
#7: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 2 / 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
Has protein modificationN

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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: ClpX / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Pseudomonas aeruginosa (bacteria)
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1750 nm / Nominal defocus min: 300 nm
Image recordingElectron dose: 52.67 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameVersionCategory
7cryoSPARC4.4.1model fitting
9PHENIX1.14_3260:model refinement
CTF correctionDetails: Patch CTF estimation, cryoSPARC / Type: NONE
3D reconstructionResolution: 2.87 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 135056 / Symmetry type: POINT

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