6xg3

The crystal structure of Papain-Like Protease of SARS CoV-2 , C111S mutant, at room temperature

Method: X-RAY DIFFRACTION Dmax: 86.8 Å Quality: GOOD

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

Non-structural protein 3

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1564–1878 Mutation:C111S ZN ZINC ION × 1 PO4 PHOSPHATE ION × 1 CL CHLORIDE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;0.1 M acetate buffer, 0.8 NaH2PO4/1.2 M K2HPO4 Resolution 2.48 Å R-free 0.193
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1564–1878 Mutation:C111S ZN ZINC ION × 2 PO4 PHOSPHATE ION × 2 CL CHLORIDE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.5;277 K;0.1 M acetate buffer, 0.8 NaH2PO4/1.2 M K2HPO4 Resolution 2.48 Å R-free 0.193

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 4323 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 4–318; UniProt 1564–1878

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 6xg3

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6xg3
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6xg3
Deposition date deposition_date2020-06-16
Structure title titleThe crystal structure of Papain-Like Protease of SARS CoV-2 , C111S mutant, at room temperature
Keywords keywords;covid-19, coronavirus, SARS, CoV-2, papain-like protease, IDP51000, Center for Structural Genomics of Infectious Diseases, CSGID, HYDROLASE ;; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier23.86
Radius of gyration Rg (electron density) rg_electron23.28
Forward intensity I(0) i021987000.00
Molecular weight molecular_weight35539.0 kDa
Excluded volume excluded_volume44351 ų
Envelope volume envelope_volume53792 ų
Hydration-shell volume shell_volume20805 ų
Envelope diameter envelope_diameter91.4
Shell Rg shell_rg28.57
Envelope Rg envelope_rg23.76
Shape Rg shape_rg23.18
Total Rg total_rg24.27
Total atoms total_atoms2490
Residues n_residues313
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 dmax86.8
Rg (real space) rg_real24.06
Rg uncertainty (real space) rg_real_error0.95
I(0) (real space) i0_real2.1990e+07
I(0) uncertainty (real space) i0_real_error3.7770e+05
Rg (reciprocal space) rg_reciprocal24.02
I(0) (reciprocal space) i0_reciprocal21990000.0000
Solution quality estimate total_estimate0.8221
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.4
Skewness Skewness skewness0.573
Kurtosis Kurtosis kurtosis-0.031
Angular range angular_range— – 0.3350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4146000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.673; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.686; Smooth: 0.979

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 5 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd6xg3a1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.1 — Ubiquitin-like
Family Family familyd.15.1.0 — automated matches
Domain ID domain_idd6xg3a2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.3 — Cysteine proteinases
Superfamily Superfamily superfamilyd.3.1 — Cysteine proteinases
Family Family familyd.3.1.23 — Papain-like viral protease catalytic domain

CATH v4.4 (3 domains)

Domain ID domain_id6xg3A01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily540 — Papain-like viral protease, N-terminal domain
Domain ID domain_id6xg3A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology8 — Helicase, Ruva Protein; domain 3
Homologous superfamily homologous superfamily1190 — Papain-like viral protease, thumb domain
Domain ID domain_id6xg3A03
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily1680

8. Citations (1)

9. Files and Curves (10)