9p7b

The Structure of Bovine Trypsin Complexed With Mellitic Acid at 173 Degrees

Method: X-RAY DIFFRACTION Dmax: 54.1 Å Quality: REASONABLE

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

Pretrypsinogen I

Bos taurus

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 1–246 Not recorded EPE 4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID × 1 BHC BENZENE HEXACARBOXYLIC ACID × 2 PG4 TETRAETHYLENE GLYCOL × 1 CA CALCIUM ION × 2 BEN BENZAMIDINE × 5 ACT ACETATE ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 6.5;295 K;Sitting drop vapor diffusion in Cryschem plates. 0.5 Reservoirs of 50% TACSIMATE pH 6. Drops 3.5 ul 40 mg/ml protein stock solution plus 3.5 ul of the reservoir. Room temperature. Resolution 1.50 Å R-free 0.254

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 1–246; UniProt 1–246

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 9p7b

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9p7b
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9p7b
Deposition date deposition_date2025-06-20
最后修订 last_revision2026-05-27
Structure title titleThe Structure of Bovine Trypsin Complexed With Mellitic Acid at 173 Degrees
Keywords keywordsMellitic Acid, carboxylic acids, crystallization, protease, additives, HYDROLASE; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier18.19
Radius of gyration Rg (electron density) rg_electron17.07
Forward intensity I(0) i012314000.00
Molecular weight molecular_weight25168.0 kDa
Excluded volume excluded_volume31048 ų
Envelope volume envelope_volume36575 ų
Hydration-shell volume shell_volume17514 ų
Envelope diameter envelope_diameter79.0
Shell Rg shell_rg23.82
Envelope Rg envelope_rg18.39
Shape Rg shape_rg17.09
Total Rg total_rg18.04
Total atoms total_atoms3423
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 dmax54.1
Rg (real space) rg_real17.94
Rg uncertainty (real space) rg_real_error0.08
I(0) (real space) i0_real1.1860e+07
I(0) uncertainty (real space) i0_real_error9.6510e+04
Rg (reciprocal space) rg_reciprocal18.15
I(0) (reciprocal space) i0_reciprocal12310000.0000
Solution quality estimate total_estimate0.6969
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary21.9
Skewness Skewness skewness0.235
Kurtosis Kurtosis kurtosis-0.327
Angular range angular_range— – 0.4350 −1
Current regularization parameter α current_alpha10.0500
Highest regularization parameter α highest_alpha3390000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.001; Oscil: 0.944; Stabil: 0.927; Sysdev: 0.000; Positv: 1.000; Valcen: 0.988; Smooth: 0.473

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

8. Citations (1)

9. Files and Curves (10)