9ckw

X-ray diffraction structure of papain co-crystallized with E-64D

Method: X-RAY DIFFRACTION Dmax: 56.7 Å Quality: GOOD

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

Papain

OrganismNot specified

UniProt P00784

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 134–345 Not recorded MOH METHANOL × 1 E6D ethyl (3S)-3-hydroxy-4-({(2S)-4-methyl-1-[(3-methylbutyl)amino]-1-oxopentan-2-yl}amino)-4-oxobutanoate × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;66% methanol (in sitting drop); 59% methanol, 889 mM NaCl (in reservoir). Resolution 1.40 Å R-free 0.175

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.

53 other PDB entries and 61 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PAPA1_CARPA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–212; UniProt 134–345

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 9ckw

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9ckw
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9ckw
Deposition date deposition_date2024-07-10
Structure title titleX-ray diffraction structure of papain co-crystallized with E-64D
Keywords keywordsProtease, complex, inhibitor-bound, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.50
Radius of gyration Rg (electron density) rg_electron16.31
Forward intensity I(0) i010269400.00
Molecular weight molecular_weight23467.0 kDa
Excluded volume excluded_volume29221 ų
Envelope volume envelope_volume32371 ų
Hydration-shell volume shell_volume16458 ų
Envelope diameter envelope_diameter57.2
Shell Rg shell_rg22.62
Envelope Rg envelope_rg16.65
Shape Rg shape_rg16.29
Total Rg total_rg17.39
Total atoms total_atoms1657
Residues n_residues212
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 dmax56.7
Rg (real space) rg_real17.40
Rg uncertainty (real space) rg_real_error0.35
I(0) (real space) i0_real1.0270e+07
I(0) uncertainty (real space) i0_real_error1.2440e+05
Rg (reciprocal space) rg_reciprocal17.41
I(0) (reciprocal space) i0_reciprocal10270000.0000
Solution quality estimate total_estimate0.8090
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary21.9
Skewness Skewness skewness0.187
Kurtosis Kurtosis kurtosis-0.337
Angular range angular_range— – 0.4550 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2747000.0000
Real-space data points n_real_points76
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.838; 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 (4)

8. Citations (1)

9. Files and Curves (10)