1qbn

Bovine Trypsin 2-[amino(imino)methyl]-2-hydroxyphenoxy]-6-[3-(4,5-dihydro-1H-imidazol-2-yl)phenoxy]pyridine-4-carboxylic Acid (ZK-806688) Complex

Method: X-RAY DIFFRACTION Dmax: 53.2 Å Quality: GOOD

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

PROTEIN (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 1–223 Fragment:BOVINE TRYPSIN CA CALCIUM ION × 2 688 2-[AMINO(IMINO)METHYL]-2-HYDROXYPHENOXY]-6-[3-(4,5-DIHYDRO-1H-IMIDAZOL-2-YL)PHENOXY]PYRIDINE-4-CARBOXYLIC ACID × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.4;297 K;MICROCRYSTALS GROWN USING THE HANGING DROP METHOD IN LINBRO CULTURE PLATES. CRYSTALLIZATION RESERVOIRS CONTAIN 1.8 - 2.0 M AMMONIUM SULFATE, 50 MM TRIS HCL, 10 MM CACL2, PH 7.4. SIX UL OF 15 MG/ML BOVINE TRYPSIN IN 20 MM 2-AMINOBENZIMIDAZOLE WAS ADDED TO 6 UL OF RESERVOIR. MACROSEEDING WAS USED TO GROW LARGE CRYSTALS (REF 5). SINGLE CRYSTALS WERE WASHED IN 0.8 M AMMONIUM SULFATE, 50 MM TRIS HCL, 10 MM CACL2, PH 7.4. THE WASHED CRYSTALS WERE PLACED IN A 18 HOUR OLD HANGING, VAPOR DIFFUSION, HANGING DROP, temperature 297K Resolution 1.80 Å R-free 0.217

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 1–223

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 1qbn

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1qbn
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1qbn
Deposition date deposition_date1999-04-25
Structure title titleBovine Trypsin 2-[amino(imino)methyl]-2-hydroxyphenoxy]-6-[3-(4,5-dihydro-1H-imidazol-2-yl)phenoxy]pyridine-4-carboxylic Acid (ZK-806688) Complex
Keywords keywordsHYDROLASE, SERINE PROTEINASE, PROTEIN-INHIBITOR COMPLEX, S1 POCKET; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.18
Radius of gyration Rg (electron density) rg_electron16.07
Forward intensity I(0) i010885200.00
Molecular weight molecular_weight23778.0 kDa
Excluded volume excluded_volume29381 ų
Envelope volume envelope_volume32376 ų
Hydration-shell volume shell_volume16603 ų
Envelope diameter envelope_diameter51.4
Shell Rg shell_rg22.40
Envelope Rg envelope_rg16.28
Shape Rg shape_rg16.05
Total Rg total_rg17.08
Total atoms total_atoms1660
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 dmax53.2
Rg (real space) rg_real17.06
Rg uncertainty (real space) rg_real_error0.26
I(0) (real space) i0_real1.0890e+07
I(0) uncertainty (real space) i0_real_error1.0860e+05
Rg (reciprocal space) rg_reciprocal17.07
I(0) (reciprocal space) i0_reciprocal10890000.0000
Solution quality estimate total_estimate0.8992
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary22.4
Skewness Skewness skewness0.106
Kurtosis Kurtosis kurtosis-0.475
Angular range angular_range— – 0.4650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3185000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.900; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1qbna_
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_id1qbnA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1qbnA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (7)

9. Files and Curves (10)