1sb1

Novel Non-Covalent Thrombin Inhibitors Incorporating P1 4,5,6,7-Tetrahydrobenzothiazole Arginine Side Chain Mimetics

Method: X-RAY DIFFRACTION Dmax: 58.6 Å Quality: GOOD

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

Prothrombin

OrganismNot specified

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain H; UniProt 364–621 Chain L; UniProt 333–361 Fragment:light chain, residues 333-361 Fragment:heavy chain, residues 364-621 hirugen × 1 (P28504) NA SODIUM ION × 2 165 N-(BENZYLSULFONYL)-3-CYCLOHEXYLALANYL-N-(2-AMINO-1,3-BENZOTHIAZOL-6-YL)PROLINAMIDE × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 1.90 Å R-free 0.224

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 1–29; UniProt 333–361 Author chain H; PDBConstruct 1–258; UniProt 364–621

hirugen

OrganismNot specified

UniProt P28504

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 heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain I; UniProt 55–63 Non-standard monomer:Yes (specific site not provided by mmCIF) Prothrombin × 1 (P00734) Prothrombin × 1 (P00734) NA SODIUM ION × 2 165 N-(BENZYLSULFONYL)-3-CYCLOHEXYLALANYL-N-(2-AMINO-1,3-BENZOTHIAZOL-6-YL)PROLINAMIDE × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 1.90 Å R-free 0.224

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.

54 other PDB entries and 55 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HIR2_HIRME
Isoform
PDB entities 3
Chains and sequence ranges Author chain I; PDBConstruct 1–9; UniProt 55–63

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 1sb1

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1sb1
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1sb1
Deposition date deposition_date2004-02-09
Structure title titleNovel Non-Covalent Thrombin Inhibitors Incorporating P1 4,5,6,7-Tetrahydrobenzothiazole Arginine Side Chain Mimetics
Keywords keywordsthrombin, inhibition, hirugen, SERINE PROTEASE INHIBITOR, BLOOD CLOTTING, HYDROLASE, 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_guinier19.14
Radius of gyration Rg (electron density) rg_electron17.92
Forward intensity I(0) i019904800.00
Molecular weight molecular_weight34026.0 kDa
Excluded volume excluded_volume42577 ų
Envelope volume envelope_volume47555 ų
Hydration-shell volume shell_volume21241 ų
Envelope diameter envelope_diameter59.8
Shell Rg shell_rg25.15
Envelope Rg envelope_rg18.28
Shape Rg shape_rg17.91
Total Rg total_rg18.92
Total atoms total_atoms2390
Residues n_residues249
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 dmax58.6
Rg (real space) rg_real18.98
Rg uncertainty (real space) rg_real_error0.23
I(0) (real space) i0_real1.9900e+07
I(0) uncertainty (real space) i0_real_error2.1390e+05
Rg (reciprocal space) rg_reciprocal19.01
I(0) (reciprocal space) i0_reciprocal19910000.0000
Solution quality estimate total_estimate0.8968
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.2
Skewness Skewness skewness0.093
Kurtosis Kurtosis kurtosis-0.453
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8042000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.898; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.980; Smooth: 0.981

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1sb1.1
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_id1sb1H01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1sb1H02
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)