3a87

Crystal Structure of Trypsin complexed with (E)-4-((2-nicotinoylhydrazono)methyl)benzimidamide (soaking 5 minutes)

Method: X-RAY DIFFRACTION Dmax: 55.8 Å Quality: GOOD

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

Cationic trypsin

OrganismNot specified

UniProt P00760

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 24–246 Not recorded CA CALCIUM ION × 1 SO4 SULFATE ION × 1 GOL GLYCEROL × 1 H06 (E)-4-((2-nicotinoylhydrazono)methyl)benzimidamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;277 K;0.1M Tris-HCl, 30% PEG 3350, 0.2M Lithium Sulfate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 1.75 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.

608 other PDB entries and 770 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name TRY1_BOVIN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–223; UniProt 24–246

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 3a87

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3a87
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3a87
Deposition date deposition_date2009-10-05
Structure title titleCrystal Structure of Trypsin complexed with (E)-4-((2-nicotinoylhydrazono)methyl)benzimidamide (soaking 5 minutes)
Keywords keywordsIn-Crystal Chemical Ligation, Disulfide bond, Hydrolase, Metal-binding, Protease, Secreted, Serine protease, Zymogen; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.22
Radius of gyration Rg (electron density) rg_electron16.06
Forward intensity I(0) i011039500.00
Molecular weight molecular_weight23807.0 kDa
Excluded volume excluded_volume29385 ų
Envelope volume envelope_volume32301 ų
Hydration-shell volume shell_volume16572 ų
Envelope diameter envelope_diameter52.9
Shell Rg shell_rg22.35
Envelope Rg envelope_rg16.31
Shape Rg shape_rg16.03
Total Rg total_rg17.10
Total atoms total_atoms1661
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 dmax55.8
Rg (real space) rg_real17.10
Rg uncertainty (real space) rg_real_error0.36
I(0) (real space) i0_real1.1040e+07
I(0) uncertainty (real space) i0_real_error1.3660e+05
Rg (reciprocal space) rg_reciprocal17.11
I(0) (reciprocal space) i0_reciprocal11040000.0000
Solution quality estimate total_estimate0.8047
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary22.0
Skewness Skewness skewness0.124
Kurtosis Kurtosis kurtosis-0.443
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3146000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.825; Stabil: 0.995; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3a87a_
Class classb — All beta proteins
Fold Fold foldb.47 — Trypsin-like serine proteases
Superfamily Superfamily superfamilyb.47.1 — Trypsin-like serine proteases
Family Family familyb.47.1.2 — Eukaryotic proteases

CATH v4.4 (2 domains)

Domain ID domain_id3a87A01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id3a87A02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (1)

9. Files and Curves (10)