7xos

Cryo-EM structure of occupied ring subunit 4 (OR4) of GroEL from GroEL-UGT1A double occupied ring complex

Method: ELECTRON MICROSCOPY Dmax: 83.0 Å Quality: EXCELLENT

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain K; 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 3.20 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 K; 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 7xos

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7xos
Deposition date deposition_date2022-05-01
Structure title titleCryo-EM structure of occupied ring subunit 4 (OR4) of GroEL from GroEL-UGT1A double occupied ring complex
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_guinier27.17
Radius of gyration Rg (electron density) rg_electron26.21
Forward intensity I(0) i051206300.00
Molecular weight molecular_weight55123.0 kDa
Excluded volume excluded_volume69061 ų
Envelope volume envelope_volume88595 ų
Hydration-shell volume shell_volume28208 ų
Envelope diameter envelope_diameter83.0
Shell Rg shell_rg33.55
Envelope Rg envelope_rg25.71
Shape Rg shape_rg26.21
Total Rg total_rg27.04
Total atoms total_atoms3855
Residues n_residues524
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 dmax83.0
Rg (real space) rg_real27.06
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real5.1210e+07
I(0) uncertainty (real space) i0_real_error5.9460e+05
Rg (reciprocal space) rg_reciprocal27.10
I(0) (reciprocal space) i0_reciprocal51210000.0000
Solution quality estimate total_estimate0.9141
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary30.0
Skewness Skewness skewness0.132
Kurtosis Kurtosis kurtosis-0.680
Angular range angular_range— – 0.2900 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6721000.0000
Real-space data points n_real_points59
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.974; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.957

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (1)

8. Citations (1)

9. Files and Curves (10)