7mc6

Crystal structure of the SARS-CoV-2 ExoN-nsp10 complex containing Mg2+ ion

Method: X-RAY DIFFRACTION Dmax: 79.6 Å Quality: GOOD

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

Proofreading exoribonuclease

Severe acute respiratory syndrome coronavirus 2

UniProt P0DTD1

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 5926–6214 Chain M; UniProt 4254–4392 Fragment:UNP residues 5926-6214 Fragment:UNP residues 4254-4392 ZN ZINC ION × 4 EDO 1,2-ETHANEDIOL × 9 CL CHLORIDE ION × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;295 K;MgCl2 , Tris-HCl pH 8.5, PEG 4000 Resolution 2.10 Å R-free 0.219

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.

3350 other PDB entries and 4324 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name R1AB_SARS2
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 3–291; UniProt 5926–6214 Author chain M; PDBConstruct 2–140; UniProt 4254–4392

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 7mc6

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7mc6
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7mc6
Deposition date deposition_date2021-04-01
Structure title titleCrystal structure of the SARS-CoV-2 ExoN-nsp10 complex containing Mg2+ ion
Keywords keywordsRNA binding, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.97
Radius of gyration Rg (electron density) rg_electron22.99
Forward intensity I(0) i038215700.00
Molecular weight molecular_weight46625.0 kDa
Excluded volume excluded_volume57816 ų
Envelope volume envelope_volume67586 ų
Hydration-shell volume shell_volume24919 ų
Envelope diameter envelope_diameter81.6
Shell Rg shell_rg29.76
Envelope Rg envelope_rg23.18
Shape Rg shape_rg22.91
Total Rg total_rg24.01
Total atoms total_atoms3240
Residues n_residues415
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 dmax79.6
Rg (real space) rg_real23.98
Rg uncertainty (real space) rg_real_error0.56
I(0) (real space) i0_real3.8220e+07
I(0) uncertainty (real space) i0_real_error5.3290e+05
Rg (reciprocal space) rg_reciprocal23.98
I(0) (reciprocal space) i0_reciprocal38220000.0000
Solution quality estimate total_estimate0.8888
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.4
Skewness Skewness skewness0.376
Kurtosis Kurtosis kurtosis-0.307
Angular range angular_range— – 0.3300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7161000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.865; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.970; Smooth: 0.986

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd7mc6m_
Class classg — Small proteins
Fold Fold foldg.86 — Coronavirus NSP10-like
Superfamily Superfamily superfamilyg.86.1 — Coronavirus NSP10-like
Family Family familyg.86.1.1 — Coronavirus NSP10-like

8. Citations (2)

9. Files and Curves (10)