9g0h

Crystal structure of SARS-CoV-2 main protease (MPro) in complex with the noncovalently bound inhibitor C5N17A

Method: X-RAY DIFFRACTION Dmax: 82.8 Å Quality: EXCELLENT

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

3C-like proteinase nsp5

Severe acute respiratory syndrome coronavirus 2

UniProt P0DTC1

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 3264–3569 Chain B; UniProt 3264–3569 Not recorded DMS DIMETHYL SULFOXIDE × 4 A1IHT [(1~{S},5~{R})-8-[(~{S})-(3-fluorophenyl)-[1-(2-thiophen-3-ylethyl)-1,2,3-triazol-4-yl]methyl]-3,8-diazabicyclo[3.2.1]octan-3-yl]-(5-methylpyridin-3-yl)methanone × 1 CL CHLORIDE ION × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;295 K;1.5 mM inhibitor, 24% PEG1500, 0.05 M sodium malonate, 0.075 M imidazole, 0.075 M boric acid, 5 % DMSO, 1 mM DTT, 1.58 mM EDTA, 26.67 mM Tris, 20 mM NaCl, 1.33 mM TCEP, pH 7.8 Resolution 1.65 Å R-free 0.222

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.

440 other PDB entries and 508 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name R1A_SARS2
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–306; UniProt 3264–3569 Author chain B; PDBConstruct 1–306; 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 9g0h

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9g0h
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id9g0h
Deposition date deposition_date2024-07-08
最后修订 last_revision2025-07-02
Structure title titleCrystal structure of SARS-CoV-2 main protease (MPro) in complex with the noncovalently bound inhibitor C5N17A
Keywords keywordsmain protease, 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_guinier26.48
Radius of gyration Rg (electron density) rg_electron25.43
Forward intensity I(0) i074611900.00
Molecular weight molecular_weight67264.0 kDa
Excluded volume excluded_volume83954 ų
Envelope volume envelope_volume99134 ų
Hydration-shell volume shell_volume32213 ų
Envelope diameter envelope_diameter86.8
Shell Rg shell_rg33.05
Envelope Rg envelope_rg25.55
Shape Rg shape_rg25.48
Total Rg total_rg26.05
Total atoms total_atoms9311
Residues n_residues602
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 dmax82.8
Rg (real space) rg_real26.35
Rg uncertainty (real space) rg_real_error0.50
I(0) (real space) i0_real7.4610e+07
I(0) uncertainty (real space) i0_real_error1.0780e+06
Rg (reciprocal space) rg_reciprocal26.39
I(0) (reciprocal space) i0_reciprocal74610000.0000
Solution quality estimate total_estimate0.9069
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary34.5
Skewness Skewness skewness0.155
Kurtosis Kurtosis kurtosis-0.547
Angular range angular_range— – 0.3000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha38310000.0000
Real-space data points n_real_points61
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.933; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.988

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (1)

9. Files and Curves (10)