7lku

1.65 A resolution structure of SARS-CoV-2 3CL protease in complex with inhibitor 3b (deuterated analog of inhibitor 2a)

Method: X-RAY DIFFRACTION Dmax: 85.5 Å Quality: REASONABLE

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 3264–3568 Chain B; UniProt 3264–3568 Not recorded Y4D (1R,2S)-2-((S)-2-(((((1R,3s,5S)-bicyclo[3.3.1]nonan-3-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid × 1 Y5S (1S,2S)-2-((S)-2-(((((1R,3s,5S)-bicyclo[3.3.1]nonan-3-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid × 1 Y8Y (1R,2S)-2-((S)-2-(((((1R,3r,5S)-bicyclo[3.3.1]nonan-3-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid × 1 Y91 (1S,2S)-2-((S)-2-(((((1R,3r,5S)-bicyclo[3.3.1]nonan-3-yl)methoxy)carbonyl)amino)-4-methylpentanamido)-1-hydroxy-3-((S)-2-oxopyrrolidin-3-yl)propane-1-sulfonic acid × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8;293 K;20% w/v PEG4000, 100 mM Tris Resolution 1.65 Å R-free 0.211

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 5–309; UniProt 3264–3568 Author chain B; PDBConstruct 5–309; UniProt 3264–3568

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 7lku

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7lku
Deposition date deposition_date2021-02-02
Structure title title1.65 A resolution structure of SARS-CoV-2 3CL protease in complex with inhibitor 3b (deuterated analog of inhibitor 2a)
Keywords keywords;COVID-19, PROTEASE, severe acute respiratory syndrome coronavirus 2, SARS-CoV-2 3CL protease Inhhibitors, HYDROLASE-INHIBITOR complex ;; HYDROLASE/INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.55
Radius of gyration Rg (electron density) rg_electron25.57
Forward intensity I(0) i070457200.00
Molecular weight molecular_weight65133.0 kDa
Excluded volume excluded_volume81255 ų
Envelope volume envelope_volume96695 ų
Hydration-shell volume shell_volume31359 ų
Envelope diameter envelope_diameter85.6
Shell Rg shell_rg32.97
Envelope Rg envelope_rg25.59
Shape Rg shape_rg25.55
Total Rg total_rg26.40
Total atoms total_atoms4566
Residues n_residues599
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 dmax85.5
Rg (real space) rg_real26.40
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real7.0460e+07
I(0) uncertainty (real space) i0_real_error9.2990e+05
Rg (reciprocal space) rg_reciprocal26.45
I(0) (reciprocal space) i0_reciprocal70460000.0000
Solution quality estimate total_estimate0.7018
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary35.6
Skewness Skewness skewness0.115
Kurtosis Kurtosis kurtosis-0.591
Angular range angular_range— – 0.3000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha40760000.0000
Real-space data points n_real_points61
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 1.000; Sysdev: 0.145; Positv: 1.000; Valcen: 1.000; Smooth: 0.989

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd7lkua_
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_idd7lkub_
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 (3 domains)

Domain ID domain_id7lkuA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id7lkuA02
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_id7lkuB01
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)