1h8i

X-ray crystal structure of human alpha-thrombin with a tripeptide phosphonate inhibitor.

Method: X-RAY DIFFRACTION Dmax: 59.2 Å Quality: REASONABLE

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

THROMBIN

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 364–511 Chain H; UniProt 518–622 Chain L; UniProt 334–360 Fragment:THROMBIN HEAVY CHAIN Fragment:THROMBIN LIGHT CHAIN HIRUDIN I × 1 (P01050) PHV N-[(benzyloxy)carbonyl]-beta-phenyl-D-phenylalanyl-N-[(1S)-4-methoxy-1-phosphonobutyl]-L-prolinamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.2;PH 7.20 Resolution 1.75 Å R-free 0.235

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, 3
Chains and sequence ranges Author chain H; PDBConstruct 1–148; UniProt 364–511 Author chain H; PDBConstruct 149–253; UniProt 518–622 Author chain L; PDBConstruct 1–27; UniProt 334–360

HIRUDIN I

OrganismNot specified

UniProt P01050

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 55–64 Fragment:RESIDUES 55 TO 64 Non-standard monomer:Yes (specific site not provided by mmCIF) THROMBIN × 1 (P00734) THROMBIN × 1 (P00734) PHV N-[(benzyloxy)carbonyl]-beta-phenyl-D-phenylalanyl-N-[(1S)-4-methoxy-1-phosphonobutyl]-L-prolinamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.2;PH 7.20 Resolution 1.75 Å R-free 0.235

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.

48 other PDB entries and 48 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name ITH1_HIRME
Isoform
PDB entities 2
Chains and sequence ranges Author chain I; PDBConstruct 1–10; UniProt 55–64

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 1h8i

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1h8i
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1h8i
Deposition date deposition_date2001-02-08
Structure title titleX-ray crystal structure of human alpha-thrombin with a tripeptide phosphonate inhibitor.
Keywords keywordsSERINE PROTEASE, 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_guinier19.11
Radius of gyration Rg (electron density) rg_electron17.90
Forward intensity I(0) i020074100.00
Molecular weight molecular_weight34283.0 kDa
Excluded volume excluded_volume42964 ų
Envelope volume envelope_volume47239 ų
Hydration-shell volume shell_volume21149 ų
Envelope diameter envelope_diameter58.7
Shell Rg shell_rg25.11
Envelope Rg envelope_rg18.23
Shape Rg shape_rg17.91
Total Rg total_rg18.89
Total atoms total_atoms2412
Residues n_residues289
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 dmax59.2
Rg (real space) rg_real18.95
Rg uncertainty (real space) rg_real_error0.30
I(0) (real space) i0_real2.0070e+07
I(0) uncertainty (real space) i0_real_error2.3720e+05
Rg (reciprocal space) rg_reciprocal18.97
I(0) (reciprocal space) i0_reciprocal20070000.0000
Solution quality estimate total_estimate0.6540
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.7
Skewness Skewness skewness0.080
Kurtosis Kurtosis kurtosis-0.466
Angular range angular_range— – 0.4150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha7605000.0000
Real-space data points n_real_points73
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.878; Stabil: 0.999; Sysdev: 0.295; Positv: 1.000; Valcen: 0.981; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1h8i.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_id1h8iH01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1h8iH02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (2)

9. Files and Curves (10)