2afq

1.9 angstrom crystal structure of wild-type human thrombin in the sodium free state

Method: X-RAY DIFFRACTION Dmax: 85.2 Å Quality: GOOD

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

Prothrombin

Homo sapiens

UniProt P00734

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 homooligomer Homooligomer Protein × 4 PDB declaration: tetrameric(4) Consistent with protein copy count Chain A; UniProt 332–360 Chain B; UniProt 364–622 Chain C; UniProt 332–360 Chain D; UniProt 364–622 Fragment:Light Chain Fragment:Heavy Chain GOL GLYCEROL × 7 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.4;293 K;PEG 3350, magnesium acetate, lithium chloride, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 1.93 Å R-free 0.229

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.

475 other PDB entries and 564 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name THRB_HUMAN
Isoform
PDB entities 1, 2
Chains and sequence ranges Author chain A; PDBConstruct 1–29; UniProt 332–360 Author chain C; PDBConstruct 1–29; UniProt 332–360 Author chain B; PDBConstruct 1–259; UniProt 364–622 Author chain D; PDBConstruct 1–259; UniProt 364–622

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 2afq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2afq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id2afq
Deposition date deposition_date2005-07-26
Structure title title1.9 angstrom crystal structure of wild-type human thrombin in the sodium free state
Keywords keywordsalpha-thrombin; coagulation; allostery; protease; coagulation factor II, BLOOD CLOTTING, HYDROLASE; BLOOD CLOTTING,HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier26.81
Radius of gyration Rg (electron density) rg_electron26.36
Forward intensity I(0) i062254900.00
Molecular weight molecular_weight62133.0 kDa
Excluded volume excluded_volume78026 ų
Envelope volume envelope_volume93692 ų
Hydration-shell volume shell_volume29881 ų
Envelope diameter envelope_diameter86.4
Shell Rg shell_rg33.73
Envelope Rg envelope_rg26.30
Shape Rg shape_rg26.35
Total Rg total_rg27.17
Total atoms total_atoms4368
Residues n_residues469
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 dmax85.2
Rg (real space) rg_real26.87
Rg uncertainty (real space) rg_real_error0.46
I(0) (real space) i0_real6.2250e+07
I(0) uncertainty (real space) i0_real_error7.7820e+05
Rg (reciprocal space) rg_reciprocal26.86
I(0) (reciprocal space) i0_reciprocal62250000.0000
Solution quality estimate total_estimate0.8845
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary27.4
Skewness Skewness skewness0.402
Kurtosis Kurtosis kurtosis-0.467
Angular range angular_range— – 0.2950 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha38430000.0000
Real-space data points n_real_points60
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.881; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.963; Smooth: 0.887

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id2afqB01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id2afqB02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id2afqD01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id2afqD02
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)