4aba

Fragments bound to bovine trypsin for the SAMPL challenge

Method: X-RAY DIFFRACTION Dmax: 58.0 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 SO4 SULFATE ION × 3 CA CALCIUM ION × 1 EDO 1,2-ETHANEDIOL × 4 DMS DIMETHYL SULFOXIDE × 2 SW1 1-[2-(thiophen-2-yl)-1,3-thiazol-4-yl]methanamine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 5.8;22.5% PEG 3350, 0.18 M AMMONIUM SULFATE, 0.12 M SODIUM THIOCYANATE, 0.09 M BIS-TRIS PH 5.5, 0.01 M TRIS PH 8.5 (FINAL MEASURED PH=5.82). THE PROTEIN WAS AT 2 MM (47 MG/ML), WITH 4 MM BENZYLAMINE AND 10 MM CALCIUM CHLORIDE ADDED TO STABILIZE IT. THE CRYSTALLIZATIONS WERE SET UP WITH A PHOENITO PROTOCOL (NEWMAN ET AL. 2008), WHERE A PHOENIX ROBOT (ART ROBBINS INSTRUMENTS, SUNNYSIDE, CA) WAS USED TO DISPENSE THE PROTEIN INTO AN SD2 CRYSTALLIZATION PLATE (PRE-FILLED WITH 50 ML RESERVOIR SOLUTION) AND A MOSQUITO ROBOT (TTP LABTECH, MELBOURN, UK) WAS USED TO DISPENSE THE RESERVOIR SOLUTION AND SEED STOCK OVER THE PROTEIN DROPLET. Resolution 1.25 Å R-free 0.161

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 4aba

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4aba
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4aba
Deposition date deposition_date2011-12-08
Structure title titleFragments bound to bovine trypsin for the SAMPL challenge
Keywords keywordsFRAGMENT SCREENING, MODELLING, HYDROLASE; 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_electron16.12
Forward intensity I(0) i011670800.00
Molecular weight molecular_weight24240.0 kDa
Excluded volume excluded_volume29791 ų
Envelope volume envelope_volume32590 ų
Hydration-shell volume shell_volume16661 ų
Envelope diameter envelope_diameter53.1
Shell Rg shell_rg22.54
Envelope Rg envelope_rg16.36
Shape Rg shape_rg16.09
Total Rg total_rg17.14
Total atoms total_atoms1681
Residues n_residues220
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 dmax58.0
Rg (real space) rg_real17.10
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real1.1670e+07
I(0) uncertainty (real space) i0_real_error1.4160e+05
Rg (reciprocal space) rg_reciprocal17.11
I(0) (reciprocal space) i0_reciprocal11670000.0000
Solution quality estimate total_estimate0.7939
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary22.1
Skewness Skewness skewness0.131
Kurtosis Kurtosis kurtosis-0.442
Angular range angular_range— – 0.4600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3209000.0000
Real-space data points n_real_points77
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.772; 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 (7)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd4abaa_
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_id4abaA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id4abaA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (3)

9. Files and Curves (10)