9pd9

The Structure of Porcine Trypsin in Complex with Crystallization Additives I

Method: X-RAY DIFFRACTION Dmax: 67.4 Å Quality: GOOD

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

Trypsin

Sus scrofa

UniProt P00761

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 1–231 Not recorded CA CALCIUM ION × 1 BEN BENZAMIDINE × 4 PG5 1-METHOXY-2-[2-(2-METHOXY-ETHOXY]-ETHANE × 4 PEG DI(HYDROXYETHYL)ETHER × 15 PG4 TETRAETHYLENE GLYCOL × 8 OXL OXALATE ION × 1 A1CHW 4-aminobenzene-1-sulfonic acid × 1 OXM OXAMIC ACID × 6 PG6 1-(2-METHOXY-ETHOXY)-2-{2-[2-(2-METHOXY-ETHOXY]-ETHOXY}-ETHANE × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;295 K;Sitting drop vapor diffusion in Cryschem plates. Reservoirs 30% PEG 3350. Drops 3.0 ul of reservoir, plus 2 ul additives oxalic acid, sulfanilic acid, 4-amino benzoic acid mix, plus 3.0 ul of 40 mg/ml stock protein solution of 0.1 M HEPES at pH 6.5. Resolution 1.28 Å R-free 0.147

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.

44 other PDB entries and 54 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRYP_PIG
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–231; UniProt 1–231

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 9pd9

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9pd9
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9pd9
Deposition date deposition_date2025-06-30
最后修订 last_revision2026-05-27
Structure title titleThe Structure of Porcine Trypsin in Complex with Crystallization Additives I
Keywords keywordscrystallization, additives, Silver Bullets, ligands, PEG, trypsin, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.74
Radius of gyration Rg (electron density) rg_electron17.82
Forward intensity I(0) i014961400.00
Molecular weight molecular_weight29234.0 kDa
Excluded volume excluded_volume36739 ų
Envelope volume envelope_volume43837 ų
Hydration-shell volume shell_volume19756 ų
Envelope diameter envelope_diameter69.2
Shell Rg shell_rg24.95
Envelope Rg envelope_rg18.77
Shape Rg shape_rg17.96
Total Rg total_rg18.47
Total atoms total_atoms4111
Residues n_residues223
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 dmax67.4
Rg (real space) rg_real18.65
Rg uncertainty (real space) rg_real_error0.54
I(0) (real space) i0_real1.4960e+07
I(0) uncertainty (real space) i0_real_error1.8690e+05
Rg (reciprocal space) rg_reciprocal18.66
I(0) (reciprocal space) i0_reciprocal14960000.0000
Solution quality estimate total_estimate0.7621
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary24.0
Skewness Skewness skewness0.237
Kurtosis Kurtosis kurtosis-0.211
Angular range angular_range— – 0.4250 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5447000.0000
Real-space data points n_real_points74
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.639; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (11)

8. Citations (2)

9. Files and Curves (10)