7d4f

Structure of COVID-19 RNA-dependent RNA polymerase bound to suramin

Method: ELECTRON MICROSCOPY Dmax: 117.1 Å Quality: GOOD

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

Non-structural protein 8

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 × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 4393–5324 Chain B; UniProt 3943–4140 Chain C; UniProt 3860–3942 Chain G; UniProt 3943–4140 Not recorded ZN ZINC ION × 2 H3U 8-(3-(3-aminobenzamido)-4-methylbenzamido)naphthalene-1,3,5-trisulfonic acid × 2 ELECTRON MICROSCOPY cryo-EM buffer:pH 7.4 cryo-EM vitrification conditions:Cryogen ETHANE Resolution 2.57 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 B; PDBConstruct 2–199; UniProt 3943–4140 Author chain G; PDBConstruct 2–199; UniProt 3943–4140 Author chain C; PDBConstruct 2–84; UniProt 3860–3942 Author chain A; PDBConstruct 2–933; UniProt 4393–5324

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 7d4f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7d4f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7d4f
Deposition date deposition_date2020-09-23
Structure title titleStructure of COVID-19 RNA-dependent RNA polymerase bound to suramin
Keywords keywordsCOVID-19, RNA polymerase, suramin binding, VIRAL PROTEIN; VIRAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY

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

Radius of gyration Rg (Guinier) rg_guinier35.34
Radius of gyration Rg (electron density) rg_electron34.69
Forward intensity I(0) i0282265000.00
Molecular weight molecular_weight135840.0 kDa
Excluded volume excluded_volume169980 ų
Envelope volume envelope_volume218510 ų
Hydration-shell volume shell_volume51890 ų
Envelope diameter envelope_diameter126.4
Shell Rg shell_rg41.47
Envelope Rg envelope_rg34.92
Shape Rg shape_rg34.70
Total Rg total_rg35.12
Total atoms total_atoms9534
Residues n_residues1181
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 dmax117.1
Rg (real space) rg_real35.28
Rg uncertainty (real space) rg_real_error0.84
I(0) (real space) i0_real2.8230e+08
I(0) uncertainty (real space) i0_real_error4.2420e+06
Rg (reciprocal space) rg_reciprocal35.32
I(0) (reciprocal space) i0_reciprocal282300000.0000
Solution quality estimate total_estimate0.8908
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary41.6
Skewness Skewness skewness0.303
Kurtosis Kurtosis kurtosis-0.348
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha47620000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.875; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.952

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 1 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd7d4fb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.302 — Coronavirus NSP8-like
Superfamily Superfamily superfamilyd.302.1 — Coronavirus NSP8-like
Family Family familyd.302.1.1 — Coronavirus NSP8-like

8. Citations (1)

9. Files and Curves (10)