7c2k

COVID-19 RNA-dependent RNA polymerase pre-translocated catalytic complex

Method: ELECTRON MICROSCOPY Dmax: 117.5 Å Quality: GOOD

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

RNA-directed RNA polymerase

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 × 4 RNA 2 PDB declaration: hexameric(6) Consistent with all polymer counts Chain A; UniProt 4393–5324 Chain B; UniProt 3943–4140 Chain C; UniProt 3860–3942 Chain D; UniProt 3943–4140 Not recorded RNA (29-MER) × 1 ;RNA (5'-R(*UP*GP*UP*UP*CP*GP*AP*CP*GP*AP*CP*AP*CP*AP*GP*G*(F86)P*G)-3') ; × 1 ZN ZINC ION × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.5 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.93 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, 3
Chains and sequence ranges Author chain A; PDBConstruct 3–934; UniProt 4393–5324 Author chain B; PDBConstruct 3–200; UniProt 3943–4140 Author chain D; PDBConstruct 3–200; UniProt 3943–4140 Author chain C; PDBConstruct 3–85; UniProt 3860–3942

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 7c2k

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7c2k
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id7c2k
Deposition date deposition_date2020-05-07
Structure title titleCOVID-19 RNA-dependent RNA polymerase pre-translocated catalytic complex
Keywords keywords;COVID-19, 2019-nCoV, SARS-CoV-2, Virus, RdRp, nsp12, nsp7, nsp8, RTC, cryo-EM, Viral protein, RNA polymerase, drug target, antiviral, pre-translocated catalytic complex, VIRAL PROTEIN-RNA complex ;; VIRAL PROTEIN/RNA
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier36.25
Radius of gyration Rg (electron density) rg_electron35.78
Forward intensity I(0) i0395069000.00
Molecular weight molecular_weight153000.0 kDa
Excluded volume excluded_volume187960 ų
Envelope volume envelope_volume245790 ų
Hydration-shell volume shell_volume56362 ų
Envelope diameter envelope_diameter128.2
Shell Rg shell_rg42.55
Envelope Rg envelope_rg35.91
Shape Rg shape_rg35.78
Total Rg total_rg36.19
Total atoms total_atoms10692
Residues n_residues1287
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 dmax117.5
Rg (real space) rg_real36.21
Rg uncertainty (real space) rg_real_error0.82
I(0) (real space) i0_real3.9510e+08
I(0) uncertainty (real space) i0_real_error6.4950e+06
Rg (reciprocal space) rg_reciprocal36.23
I(0) (reciprocal space) i0_reciprocal395100000.0000
Solution quality estimate total_estimate0.8788
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary40.1
Skewness Skewness skewness0.332
Kurtosis Kurtosis kurtosis-0.332
Angular range angular_range— – 0.2200 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha100800000.0000
Real-space data points n_real_points45
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.894; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.737

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)