7xol

Cryo-EM structure of single empty ring 2 (SER2) of GroEL-UGT1A complex at 3.2 Ang. resolution

Method: ELECTRON MICROSCOPY Dmax: 172.3 Å Quality: GOOD

1. Protein Identity and Related Structures Protein Identity & Related Structures

Chaperonin GroEL

Escherichia coli

UniProt P0A6F5

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Protein homooligomer Homooligomer Protein × 14 PDB declaration: tetradecameric(14) Consistent with protein copy count Chain A; UniProt 2–548 Chain B; UniProt 2–548 Chain C; UniProt 2–548 Chain D; UniProt 2–548 Chain E; UniProt 2–548 Chain F; UniProt 2–548 Chain G; UniProt 2–548 Chain H; UniProt 2–548 Chain I; UniProt 2–548 Chain J; UniProt 2–548 Chain K; UniProt 2–548 Chain L; UniProt 2–548 Chain M; UniProt 2–548 Chain N; UniProt 2–548 Not recorded No other associated polymer ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5;Sample containing GorEL-UGT1A was made fresh and used without undergoing any freeze-thaw cycles to avoid degradation in the solution. The sample was in a buffer solution of 150mM NaCl, 20mM Tris-HCl at pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE;3 ul of 33 mg/ml GroEL-UGT1A was placed on Holey carbon Quanitifoil copper grids (300 mesh size R1.2/1.3) and blotted for 3 seconds (blot force =1) Resolution 3.26 Å

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

81 other PDB entries and 95 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CH60_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–547; UniProt 2–548 Author chain B; PDBConstruct 1–547; UniProt 2–548 Author chain C; PDBConstruct 1–547; UniProt 2–548 Author chain D; PDBConstruct 1–547; UniProt 2–548 Author chain E; PDBConstruct 1–547; UniProt 2–548 Author chain F; PDBConstruct 1–547; UniProt 2–548 Author chain G; PDBConstruct 1–547; UniProt 2–548 Author chain H; PDBConstruct 1–547; UniProt 2–548 Author chain I; PDBConstruct 1–547; UniProt 2–548 Author chain J; PDBConstruct 1–547; UniProt 2–548 Author chain K; PDBConstruct 1–547; UniProt 2–548 Author chain L; PDBConstruct 1–547; UniProt 2–548 Author chain M; PDBConstruct 1–547; UniProt 2–548 Author chain N; PDBConstruct 1–547; UniProt 2–548

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

SAXS profile for 7xol

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7xol
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7xol
Deposition date deposition_date2022-05-01
Structure title titleCryo-EM structure of single empty ring 2 (SER2) of GroEL-UGT1A complex at 3.2 Ang. resolution
Keywords keywords;cryogenic electron microscopy, single-particle analysis, molecular motion, structure-function relationship, focus classification, separating heterogeneity, groel, chaperone, unfolded protein ;; CHAPERONE
Experimental Method methodELECTRON MICROSCOPY

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier64.33
Radius of gyration Rg (electron density) rg_electron63.22
Forward intensity I(0) i08396130000.00
Molecular weight molecular_weight771730.0 kDa
Excluded volume excluded_volume966860 ų
Envelope volume envelope_volume1544100 ų
Hydration-shell volume shell_volume193240 ų
Envelope diameter envelope_diameter187.9
Shell Rg shell_rg75.11
Envelope Rg envelope_rg59.54
Shape Rg shape_rg63.25
Total Rg total_rg63.31
Total atoms total_atoms53970
Residues n_residues7336
Spherical-harmonic order n_harmonics20
q range q_range— – 0.5000 −1
Data points n_points101
Shell type shell_typedirectional
Solvent electron density solvent_density0.3340 e/ų
Shell contrast contrast_shell0.0300 e/ų
CRYSOL version crysol_version4.1.3

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax172.3
Rg (real space) rg_real63.61
Rg uncertainty (real space) rg_real_error0.66
I(0) (real space) i0_real8.3960e+09
I(0) uncertainty (real space) i0_real_error1.3100e+08
Rg (reciprocal space) rg_reciprocal64.93
I(0) (reciprocal space) i0_reciprocal8415000000.0000
Solution quality estimate total_estimate0.8366
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary93.3
Skewness Skewness skewness-0.099
Kurtosis Kurtosis kurtosis-0.536
Angular range angular_range— – 0.1200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3809000000.0000
Real-space data points n_real_points25
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.969; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.963; Smooth: 0.001

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id7xolC01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology260 — GROEL; domain 2
Homologous superfamily homologous superfamily10 — TCP-1-like chaperonin intermediate domain
Domain ID domain_id7xolC02
Class class3 — Alpha Beta
Architecture architecture50 — 3-Layer(bba) Sandwich
Topology topology7 — GroEL
Homologous superfamily homologous superfamily10 — GroEL
Domain ID domain_id7xolD01
Class class3 — Alpha Beta
Architecture architecture50 — 3-Layer(bba) Sandwich
Topology topology7 — GroEL
Homologous superfamily homologous superfamily10 — GroEL
Domain ID domain_id7xolN01
Class class3 — Alpha Beta
Architecture architecture50 — 3-Layer(bba) Sandwich
Topology topology7 — GroEL
Homologous superfamily homologous superfamily10 — GroEL

8. Citations (1)

9. Files and Curves (10)