6w9q

Peptide-bound SARS-CoV-2 Nsp9 RNA-replicase

Method: X-RAY DIFFRACTION Dmax: 54.4 Å Quality: GOOD

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

3C-like proteinase peptide, Non-structural protein 9 fusion

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 4141–4253 Not recorded PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4;298 K;2.2M AmSO4, 0.1M Citrate-phosphate pH4 Resolution 2.05 Å R-free 0.246

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
Chains and sequence ranges Author chain A; PDBConstruct 21–133; UniProt 4141–4253

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 6w9q

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6w9q
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6w9q
Deposition date deposition_date2020-03-23
Structure title titlePeptide-bound SARS-CoV-2 Nsp9 RNA-replicase
Keywords keywordsCOVID-19, SARS-CoV-2, Nsp9, RNA replicase, 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_guinier16.68
Radius of gyration Rg (electron density) rg_electron15.14
Forward intensity I(0) i03677040.00
Molecular weight molecular_weight13471.0 kDa
Excluded volume excluded_volume16884 ų
Envelope volume envelope_volume20664 ų
Hydration-shell volume shell_volume12048 ų
Envelope diameter envelope_diameter52.6
Shell Rg shell_rg20.36
Envelope Rg envelope_rg15.60
Shape Rg shape_rg15.12
Total Rg total_rg16.31
Total atoms total_atoms945
Residues n_residues123
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 dmax54.4
Rg (real space) rg_real16.64
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real3.6770e+06
I(0) uncertainty (real space) i0_real_error4.5460e+04
Rg (reciprocal space) rg_reciprocal16.64
I(0) (reciprocal space) i0_reciprocal3677000.0000
Solution quality estimate total_estimate0.7554
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary19.8
Skewness Skewness skewness0.249
Kurtosis Kurtosis kurtosis-0.338
Angular range angular_range— – 0.4750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha441400.0000
Real-space data points n_real_points78
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.886; Stabil: 1.000; Sysdev: 0.394; Positv: 1.000; Valcen: 0.999; Smooth: 0.975

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6w9qa1
Class classb — All beta proteins
Fold Fold foldb.140 — Replicase NSP9
Superfamily Superfamily superfamilyb.140.1 — Replicase NSP9
Family Family familyb.140.1.1 — Replicase NSP9
Domain ID domain_idd6w9qa2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id6w9qA00
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily250 — Replicase NSP9

8. Citations (1)

9. Files and Curves (10)