6xa9

SARS CoV-2 PLpro in complex with ISG15 C-terminal domain propargylamide

Method: X-RAY DIFFRACTION Dmax: 112.5 Å Quality: EXCELLENT

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1563–1878 Fragment:UNP residues 1563-1878 ISG15 CTD-propargylamide × 1 (P05161) GOL GLYCEROL × 3 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1563–1878 Fragment:UNP residues 1563-1878 ISG15 CTD-propargylamide × 1 (P05161) GOL GLYCEROL × 3 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain E; UniProt 1563–1878 Fragment:UNP residues 1563-1878 ISG15 CTD-propargylamide × 1 (P05161) GOL GLYCEROL × 2 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231

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 4322 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 3–318; UniProt 1563–1878 Author chain C; PDBConstruct 3–318; UniProt 1563–1878 Author chain E; PDBConstruct 3–318; UniProt 1563–1878

ISG15 CTD-propargylamide

Homo sapiens

UniProt P05161

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 79–157 Fragment:C-terminal domain (UNP residues 79-157) Mutation:G176 replaced with propargylamide Non-standard monomer:Yes (specific site not provided by mmCIF) Non-structural protein 3 × 1 (P0DTD1) GOL GLYCEROL × 3 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain D; UniProt 79–157 Fragment:C-terminal domain (UNP residues 79-157) Mutation:G176 replaced with propargylamide Non-standard monomer:Yes (specific site not provided by mmCIF) Non-structural protein 3 × 1 (P0DTD1) GOL GLYCEROL × 3 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain F; UniProt 79–157 Fragment:C-terminal domain (UNP residues 79-157) Mutation:G176 replaced with propargylamide Non-standard monomer:Yes (specific site not provided by mmCIF) Non-structural protein 3 × 1 (P0DTD1) GOL GLYCEROL × 2 ZN ZINC ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;293 K;0.2 M lithium sulfate, 25% PEG3350, 0.1 M Bis-Tris chloride, pH 6.5 Resolution 2.90 Å R-free 0.231

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.

21 other PDB entries and 37 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ISG15_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–80; UniProt 79–157 Author chain D; PDBConstruct 2–80; UniProt 79–157 Author chain F; PDBConstruct 2–80; UniProt 79–157

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 6xa9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 6xa9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id6xa9
Deposition date deposition_date2020-06-04
Structure title titleSARS CoV-2 PLpro in complex with ISG15 C-terminal domain propargylamide
Keywords keywordsSARS CoV-2, papain-like protease, ISG15CTD activity based probe, COVID19, HYDROLASE-SUBSTRATE complex; HYDROLASE/SUBSTRATE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier35.39
Radius of gyration Rg (electron density) rg_electron34.44
Forward intensity I(0) i0253839000.00
Molecular weight molecular_weight127020.0 kDa
Excluded volume excluded_volume158010 ų
Envelope volume envelope_volume209020 ų
Hydration-shell volume shell_volume49488 ų
Envelope diameter envelope_diameter120.4
Shell Rg shell_rg41.84
Envelope Rg envelope_rg34.33
Shape Rg shape_rg34.41
Total Rg total_rg35.06
Total atoms total_atoms8927
Residues n_residues1168
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 dmax112.5
Rg (real space) rg_real35.23
Rg uncertainty (real space) rg_real_error0.72
I(0) (real space) i0_real2.5380e+08
I(0) uncertainty (real space) i0_real_error4.4620e+06
Rg (reciprocal space) rg_reciprocal35.33
I(0) (reciprocal space) i0_reciprocal253900000.0000
Solution quality estimate total_estimate0.9011
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary45.0
Skewness Skewness skewness0.150
Kurtosis Kurtosis kurtosis-0.489
Angular range angular_range— – 0.2250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha24760000.0000
Real-space data points n_real_points46
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.925; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.992; Smooth: 0.945

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 21 domains

SCOP 2.08 (9 domains)

Domain ID domain_idd6xa9a1
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_idd6xa9a2
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
Domain ID domain_idd6xa9b_
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_idd6xa9c1
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_idd6xa9c2
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
Domain ID domain_idd6xa9d_
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_idd6xa9e1
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_idd6xa9e2
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
Domain ID domain_idd6xa9f_
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

CATH v4.4 (12 domains)

Domain ID domain_id6xa9A01
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_id6xa9A02
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_id6xa9A03
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily1680
Domain ID domain_id6xa9B01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id6xa9C01
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_id6xa9C02
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_id6xa9C03
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily1680
Domain ID domain_id6xa9D01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1
Domain ID domain_id6xa9E01
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_id6xa9E02
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_id6xa9E03
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily1680
Domain ID domain_id6xa9F01
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily90 — Phosphatidylinositol 3-kinase Catalytic Subunit; Chain A, domain 1

8. Citations (2)

9. Files and Curves (10)