7cb7

1.7A resolution structure of SARS-CoV-2 main protease (Mpro) in complex with broad-spectrum coronavirus protease inhibitor GC376

Method: X-RAY DIFFRACTION Dmax: 82.2 Å Quality: EXCELLENT

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 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 NA SODIUM ION × 1 K36 (1S,2S)-2-({N-[(benzyloxy)carbonyl]-L-leucyl}amino)-1-hydroxy-3-[(3S)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid × 2 B1S (1R,2S)-2-({N-[(benzyloxy)carbonyl]-L-leucyl}amino)-1-hydroxy-3-[(3S)-2-oxopyrrolidin-3-yl]propane-1-sulfonic acid × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;293 K;0.1 M Bis-Tris propane, 0.02 M sodium/potassium phosphate, 20% (w/v) PEG3350 Resolution 1.69 Å R-free 0.192

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 6–311; UniProt 3264–3569 Author chain B; PDBConstruct 6–311; 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 7cb7

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7cb7
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7cb7
Deposition date deposition_date2020-06-10
Structure title title1.7A resolution structure of SARS-CoV-2 main protease (Mpro) in complex with broad-spectrum coronavirus protease inhibitor GC376
Keywords keywordsmain protease, 3C-like proteinase, protein-inhibitor complex, GC376, 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_guinier26.51
Radius of gyration Rg (electron density) rg_electron25.47
Forward intensity I(0) i076880400.00
Molecular weight molecular_weight68008.0 kDa
Excluded volume excluded_volume84802 ų
Envelope volume envelope_volume100100 ų
Hydration-shell volume shell_volume32403 ų
Envelope diameter envelope_diameter88.2
Shell Rg shell_rg33.12
Envelope Rg envelope_rg25.62
Shape Rg shape_rg25.45
Total Rg total_rg26.33
Total atoms total_atoms4825
Residues n_residues612
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 dmax82.2
Rg (real space) rg_real26.37
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real7.6880e+07
I(0) uncertainty (real space) i0_real_error9.7930e+05
Rg (reciprocal space) rg_reciprocal26.42
I(0) (reciprocal space) i0_reciprocal76880000.0000
Solution quality estimate total_estimate0.9070
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary35.6
Skewness Skewness skewness0.138
Kurtosis Kurtosis kurtosis-0.575
Angular range angular_range— – 0.3000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha39650000.0000
Real-space data points n_real_points61
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.940; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.973

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 7 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd7cb7a1
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold
Domain ID domain_idd7cb7a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd7cb7b_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.4 — Viral cysteine protease of trypsin fold

CATH v4.4 (4 domains)

Domain ID domain_id7cb7A01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7cb7A02
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
Domain ID domain_id7cb7B01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7cb7B02
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)