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Open data
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Basic information
Entry | Database: PDB / ID: 7vwx | ||||||
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Title | CryoEM structure of football-shaped GroEL:ES2 with RuBisCO | ||||||
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![]() | CHAPERONE / GroEL/ES system / substrate folding / folding assistance | ||||||
Function / homology | ![]() ribulose-bisphosphate carboxylase / ribulose-bisphosphate carboxylase activity / GroEL-GroES complex / reductive pentose-phosphate cycle / chaperonin ATPase / virion assembly / : / protein folding chaperone / isomerase activity / monooxygenase activity ...ribulose-bisphosphate carboxylase / ribulose-bisphosphate carboxylase activity / GroEL-GroES complex / reductive pentose-phosphate cycle / chaperonin ATPase / virion assembly / : / protein folding chaperone / isomerase activity / monooxygenase activity / ATP-dependent protein folding chaperone / response to radiation / unfolded protein binding / protein folding / protein-folding chaperone binding / response to heat / protein refolding / magnesium ion binding / ATP hydrolysis activity / ATP binding / identical protein binding / membrane / metal ion binding / cytosol Similarity search - Function | ||||||
Biological species | ![]() ![]() ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 7.6 Å | ||||||
![]() | Kim, H. / Roh, S.H. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structures of GroEL:ES with RuBisCO visualize molecular contacts of encapsulated substrates in a double-cage chaperonin. Authors: Hyunmin Kim / Junsun Park / Seyeon Lim / Sung-Hoon Jun / Mingyu Jung / Soung-Hun Roh / ![]() Abstract: The GroEL/GroES chaperonin system assists the folding of many proteins, through conformational transitions driven by ATP hydrolysis. Although structural information about bullet-shaped GroEL:ES ...The GroEL/GroES chaperonin system assists the folding of many proteins, through conformational transitions driven by ATP hydrolysis. Although structural information about bullet-shaped GroEL:ES complexes has been extensively reported, the substrate interactions of another functional complex, the football-shaped GroEL:ES, remain elusive. Here, we report single-particle cryo-EM structures of reconstituted wild-type GroEL:ES complexes with a chemically denatured substrate, ribulose-1,5-bisphosphate carboxylase oxygenase (RuBisCO). Our structures demonstrate that native-like folded RuBisCO density is captured at the lower part of the GroEL chamber and that GroEL's bulky hydrophobic residues Phe281, Tyr360, and Phe44 contribute to direct contact with RuBisCO density. In addition, our analysis found that GroEL:ES can be occupied by two substrates simultaneously, one in each chamber. Together, these observations provide insights to the football-shaped GroEL:ES complex as a functional state to assist the substrate folding with visualization. | ||||||
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1.9 MB | Display | ![]() |
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PDB format | ![]() | 1.5 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.3 MB | Display | |
Data in XML | ![]() | 241.8 KB | Display | |
Data in CIF | ![]() | 374 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 32164MC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 10400.938 Da / Num. of mol.: 14 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #2: Protein | Mass: 57391.711 Da / Num. of mol.: 14 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() #3: Protein | | Mass: 50538.918 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: cbbM, Rru_A2400 / Production host: ![]() ![]() References: UniProt: Q2RRP5, ribulose-bisphosphate carboxylase Has protein modification | N | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight | Value: 1 MDa / Experimental value: NO | ||||||||||||||||||||||||
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Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Microscopy | Model: JEOL 3200FSC |
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Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 1 e/Å2 / Film or detector model: DIRECT ELECTRON DE-20 (5k x 3k) |
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Processing
Software | Name: PHENIX / Version: 1.19.1_4122: / Classification: refinement | ||||||||||||||||||||||||
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EM software |
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CTF correction | Type: NONE | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 7.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 35230 / Symmetry type: POINT | ||||||||||||||||||||||||
Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | ||||||||||||||||||||||||
Atomic model building | 3D fitting-ID: 1 / Source name: PDB / Type: experimental model
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Refine LS restraints |
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