6xbh

Crystal structure of the SARS-CoV-2 (COVID-19) main protease in complex with inhibitor UAW247

Method: X-RAY DIFFRACTION Dmax: 76.2 Å Quality: GOOD

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

3C-like proteinase

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 heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 3264–3569 Fragment:UNP residues 3264-3569 inhibitor UAW247 × 2 GOL GLYCEROL × 2 NA SODIUM ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5.6;298 K;20% PEG3000, 0.1 M sodium citrate, pH 5.6 Resolution 1.60 Å R-free 0.221

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 3–308; UniProt 3264–3569

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 6xbh

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id6xbh
Deposition date deposition_date2020-06-06
Structure title titleCrystal structure of the SARS-CoV-2 (COVID-19) main protease in complex with inhibitor UAW247
Keywords keywords;COVID, COVID19, COVID-19, SARS, SARS COV2, COV, NCOV 19, CORONAVIRUS, MAIN PROTEASE, 3CL, MPRO, PRO, VIRAL PROTEIN, GC376, calpain inhibitor II, leupeptin, calpain, aldehyde, GC-376, 3cl-like, a-ketoamide, UAW41, UAW246, UAW247, UAW248, 246, 247, 248, alpheketoamide, alpha, ketoamide, PEPTIDOMIMETIC, PROTEASE, CYSTEINE, HYDROLASE-HYDROLASE INHIBITOR complex ;; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.42
Radius of gyration Rg (electron density) rg_electron21.74
Forward intensity I(0) i020127000.00
Molecular weight molecular_weight34027.0 kDa
Excluded volume excluded_volume42503 ų
Envelope volume envelope_volume50185 ų
Hydration-shell volume shell_volume20075 ų
Envelope diameter envelope_diameter77.0
Shell Rg shell_rg27.54
Envelope Rg envelope_rg22.02
Shape Rg shape_rg21.72
Total Rg total_rg22.55
Total atoms total_atoms2385
Residues n_residues305
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 dmax76.2
Rg (real space) rg_real22.52
Rg uncertainty (real space) rg_real_error0.51
I(0) (real space) i0_real2.0130e+07
I(0) uncertainty (real space) i0_real_error2.8270e+05
Rg (reciprocal space) rg_reciprocal22.50
I(0) (reciprocal space) i0_reciprocal20130000.0000
Solution quality estimate total_estimate0.8604
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary21.9
Skewness Skewness skewness0.479
Kurtosis Kurtosis kurtosis-0.335
Angular range angular_range— – 0.3550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8863000.0000
Real-space data points n_real_points67
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.759; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.912; Smooth: 0.992

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 1 domains

CATH v4.4 (1 domains)

Domain ID domain_id6xbhA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology1840 — main proteinase (3clpro) structure, domain 3
Homologous superfamily homologous superfamily10 — main proteinase (3clpro) structure, domain 3

8. Citations (1)

9. Files and Curves (10)