7mb2

SARS-CoV-2 Main Protease (Mpro) in Complex with Covalent Inhibitor SM144

Method: X-RAY DIFFRACTION Dmax: 83.5 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 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 YVM 4-fluoro-N-{3-[(prop-2-yn-1-yl)oxy]propanoyl}-D-phenylalanyl-N-{(2R)-5-ethoxy-5-oxo-1-[(3S)-2-oxopyrrolidin-3-yl]pentan-2-yl}-L-phenylalaninamide × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;20% PEG 3350 + 0.1M Bis-Tris-Methane:HCl pH 5.5 + 0.2M NaCl Resolution 1.89 Å R-free 0.210

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 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 7mb2

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 7mb2
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2. Structure Basics 2. Structure Basics

Entry ID entry_id7mb2
Deposition date deposition_date2021-03-31
Structure title titleSARS-CoV-2 Main Protease (Mpro) in Complex with Covalent Inhibitor SM144
Keywords keywords;SARS-CoV-2, COVID-19, COVID19 PROTEASE, PROTEASE INHIBITOR, COVALENT, COVALENT INHIBITOR, COMPLEX, HYDROLASE INHIBITOR COMPLEX, HYDROLASE, 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_guinier26.21
Radius of gyration Rg (electron density) rg_electron25.25
Forward intensity I(0) i073653200.00
Molecular weight molecular_weight66462.0 kDa
Excluded volume excluded_volume82745 ų
Envelope volume envelope_volume97324 ų
Hydration-shell volume shell_volume31842 ų
Envelope diameter envelope_diameter87.5
Shell Rg shell_rg32.80
Envelope Rg envelope_rg25.40
Shape Rg shape_rg25.25
Total Rg total_rg26.07
Total atoms total_atoms9096
Residues n_residues608
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 dmax83.5
Rg (real space) rg_real26.08
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real7.3650e+07
I(0) uncertainty (real space) i0_real_error1.1440e+06
Rg (reciprocal space) rg_reciprocal26.13
I(0) (reciprocal space) i0_reciprocal73660000.0000
Solution quality estimate total_estimate0.8267
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary82.1
Skewness Skewness skewness0.160
Kurtosis Kurtosis kurtosis-0.540
Angular range angular_range— – 0.3050 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha38560000.0000
Real-space data points n_real_points62
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.914; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id7mb2A01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7mb2A02
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_id7mb2B01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7mb2B02
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)