9yrn

Cryo-EM structure of SARS-CoV-2 nsp10-nsp14 (E191A) in complex with T20P14-S complex, tetrameric form

Method: ELECTRON MICROSCOPY Dmax: 148.8 Å Quality: GOOD

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

Non-structural protein 10

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–RNA Homooligomer Protein × 8 RNA 4 PDB declaration: 12-meric(12) Consistent with all polymer counts Chain A; UniProt 4254–4392 Chain B; UniProt 5926–6452 Chain C; UniProt 4254–4392 Chain D; UniProt 5926–6452 Chain G; UniProt 4254–4392 Chain H; UniProt 5926–6452 Chain I; UniProt 4254–4392 Chain J; UniProt 5926–6452 Mutation:E191A T20P14-S RNA × 2 P6 RNA × 2 ZN ZINC ION × 20 MG MAGNESIUM ION × 6 K5X [(2~{R},3~{R},4~{R},5~{R})-5-[2,4-bis(oxidanylidene)pyrimidin-1-yl]-4-fluoranyl-4-methyl-3-oxidanyl-oxolan-2-yl]methyl dihydrogen phosphate × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.40 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.

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 1–139; UniProt 4254–4392 Author chain C; PDBConstruct 1–139; UniProt 4254–4392 Author chain G; PDBConstruct 1–139; UniProt 4254–4392 Author chain I; PDBConstruct 1–139; UniProt 4254–4392 Author chain B; PDBConstruct 1–527; UniProt 5926–6452 Author chain D; PDBConstruct 1–527; UniProt 5926–6452 Author chain H; PDBConstruct 1–527; UniProt 5926–6452 Author chain J; PDBConstruct 1–527; UniProt 5926–6452

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 9yrn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9yrn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9yrn
Deposition date deposition_date2025-10-16
Structure title titleCryo-EM structure of SARS-CoV-2 nsp10-nsp14 (E191A) in complex with T20P14-S complex, tetrameric form
Keywords keywords;SARS-CoV-2, replication and transcription, mismatch, proofreading exoribonuclease, VIRAL PROTEIN, VIRAL PROTEIN-RNA complex, nucleoside analog ;; VIRAL PROTEIN/RNA
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier47.49
Radius of gyration Rg (electron density) rg_electron47.18
Forward intensity I(0) i02837150000.00
Molecular weight molecular_weight287040.0 kDa
Excluded volume excluded_volume273470 ų
Envelope volume envelope_volume537750 ų
Hydration-shell volume shell_volume92340 ų
Envelope diameter envelope_diameter161.8
Shell Rg shell_rg53.54
Envelope Rg envelope_rg46.42
Shape Rg shape_rg47.14
Total Rg total_rg47.40
Total atoms total_atoms21412
Residues n_residues2628
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 dmax148.8
Rg (real space) rg_real47.21
Rg uncertainty (real space) rg_real_error1.13
I(0) (real space) i0_real2.8370e+09
I(0) uncertainty (real space) i0_real_error5.3480e+07
Rg (reciprocal space) rg_reciprocal47.49
I(0) (reciprocal space) i0_reciprocal2838000000.0000
Solution quality estimate total_estimate0.8880
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary58.6
Skewness Skewness skewness0.129
Kurtosis Kurtosis kurtosis-0.467
Angular range angular_range— – 0.1650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha103900000.0000
Real-space data points n_real_points34
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.923; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.969; Smooth: 0.801

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)