7iat

Crystal structure of Zika NS2B-NS3 protease in complex with fragment EOS102811 from ECBL-96

Method: X-RAY DIFFRACTION Dmax: 80.0 Å Quality: REASONABLE

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

NS2B co-factor

Zika virus

UniProt A0A142IX72

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 1411–1462 Chain B; UniProt 1498–1673 Mutation:C143S No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;293 K;0.1 M sodium acetate pH 4.6, 0.2 M ammonium sulfate, 24 % (w/v) PEG 2000 Resolution 1.53 Å R-free 0.205
2 Protein homooligomer Homooligomer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1411–1462 Chain D; UniProt 1498–1673 Mutation:C143S A1CDM 2,3-dihydro-1H-1lambda~6~,2-benzothiazole-1,1-dione × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 4.6;293 K;0.1 M sodium acetate pH 4.6, 0.2 M ammonium sulfate, 24 % (w/v) PEG 2000 Resolution 1.53 Å R-free 0.205

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.

32 other PDB entries and 57 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name A0A142IX72_ZIKV
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 2–53; UniProt 1411–1462 Author chain C; PDBConstruct 2–53; UniProt 1411–1462 Author chain B; PDBConstruct 1–176; UniProt 1498–1673 Author chain D; PDBConstruct 1–176; UniProt 1498–1673

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 7iat

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id7iat
Deposition date deposition_date2025-05-21
Structure title titleCrystal structure of Zika NS2B-NS3 protease in complex with fragment EOS102811 from ECBL-96
Keywords keywordscrystallographic fragment screening, NS2B-NS3 Zika protease, ECBL-96 fragment library, 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_guinier23.61
Radius of gyration Rg (electron density) rg_electron22.63
Forward intensity I(0) i029755500.00
Molecular weight molecular_weight41523.0 kDa
Excluded volume excluded_volume51850 ų
Envelope volume envelope_volume63453 ų
Hydration-shell volume shell_volume23378 ų
Envelope diameter envelope_diameter80.3
Shell Rg shell_rg29.33
Envelope Rg envelope_rg22.90
Shape Rg shape_rg22.63
Total Rg total_rg23.48
Total atoms total_atoms5791
Residues n_residues385
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 dmax80.0
Rg (real space) rg_real23.57
Rg uncertainty (real space) rg_real_error0.66
I(0) (real space) i0_real2.9760e+07
I(0) uncertainty (real space) i0_real_error4.3330e+05
Rg (reciprocal space) rg_reciprocal23.58
I(0) (reciprocal space) i0_reciprocal29760000.0000
Solution quality estimate total_estimate0.6413
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.5
Skewness Skewness skewness0.284
Kurtosis Kurtosis kurtosis-0.460
Angular range angular_range— – 0.3350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9506000.0000
Real-space data points n_real_points65
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.837; Stabil: 0.999; Sysdev: 0.286; Positv: 1.000; Valcen: 0.968; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (1)

9. Files and Curves (10)