3b9f

1.6 A structure of the PCI-thrombin-heparin complex

Method: X-RAY DIFFRACTION Dmax: 117.1 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 Other combination Heteromer Protein × 3 其他Polymer 2 PDB declaration: trimeric(3) Consistent with protein copy count Chain H; UniProt 364–622 Chain L; UniProt 315–363 Fragment:Thrombin light chain Fragment:Thrombin heavy chain Mutation:S195A (chymotrypsin numbering) Plasma serine protease inhibitor × 1 (P05154) alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose × 1 SO4 SULFATE ION × 3 GOL GLYCEROL × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.4;295 K;11% PEG 3350, 0.12M MgSO4, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 1.60 Å R-free 0.234

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 L; PDBConstruct 1–49; UniProt 315–363 Author chain H; PDBConstruct 1–259; UniProt 364–622

Plasma serine protease inhibitor

Homo sapiens

UniProt P05154

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Other combination Heteromer Protein × 3 其他Polymer 2 PDB declaration: trimeric(3) Consistent with protein copy count Chain I; UniProt 36–406 Not recorded Prothrombin × 1 (P00734) Prothrombin × 1 (P00734) alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose × 1 2-O-sulfo-alpha-L-idopyranuronic acid-(1-4)-2-deoxy-6-O-sulfo-2-(sulfoamino)-alpha-D-glucopyranose × 1 SO4 SULFATE ION × 3 GOL GLYCEROL × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.4;295 K;11% PEG 3350, 0.12M MgSO4, pH 7.4, VAPOR DIFFUSION, HANGING DROP, temperature 295K Resolution 1.60 Å R-free 0.234

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.

4 other PDB entries and 8 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name IPSP_HUMAN
Isoform
PDB entities 3
Chains and sequence ranges Author chain I; PDBConstruct 25–395; UniProt 36–406

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 3b9f

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3b9f
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3b9f
Deposition date deposition_date2007-11-05
Structure title title1.6 A structure of the PCI-thrombin-heparin complex
Keywords keywords;Michaelis complex, Acute phase, Blood coagulation, Cleavage on pair of basic residues, Disease mutation, Gamma-carboxyglutamic acid, Glycoprotein, Hydrolase, Kringle, Protease, Secreted, Serine protease, Zymogen, HYDROLASE-HYDROLASE INHIBITOR COMPLEX ;; HYDROLASE/HYDROLASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.16
Radius of gyration Rg (electron density) rg_electron33.93
Forward intensity I(0) i085429200.00
Molecular weight molecular_weight74156.0 kDa
Excluded volume excluded_volume92876 ų
Envelope volume envelope_volume115700 ų
Hydration-shell volume shell_volume30530 ų
Envelope diameter envelope_diameter116.5
Shell Rg shell_rg37.64
Envelope Rg envelope_rg33.77
Shape Rg shape_rg33.91
Total Rg total_rg34.28
Total atoms total_atoms5213
Residues n_residues600
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 dmax117.1
Rg (real space) rg_real34.52
Rg uncertainty (real space) rg_real_error1.24
I(0) (real space) i0_real8.5430e+07
I(0) uncertainty (real space) i0_real_error1.4240e+06
Rg (reciprocal space) rg_reciprocal34.30
I(0) (reciprocal space) i0_reciprocal85410000.0000
Solution quality estimate total_estimate0.7681
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary28.0
Skewness Skewness skewness0.529
Kurtosis Kurtosis kurtosis-0.562
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha37910000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.533; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.601; Smooth: 0.781

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (8)

7. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id3b9fH01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id3b9fH02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id3b9fI01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology497 — Antithrombin; Chain I, domain 2
Homologous superfamily homologous superfamily10 — Antithrombin, subunit I, domain 2
Domain ID domain_id3b9fI02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology39 — Alpha-1-antitrypsin; domain 1
Homologous superfamily homologous superfamily10 — Alpha-1-antitrypsin, domain 1
Domain ID domain_id3b9fL00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology140 — Epsilon-Thrombin; Chain L
Homologous superfamily homologous superfamily10 — Thrombin light chain domain

8. Citations (1)

9. Files and Curves (10)