1bth

STRUCTURE OF THROMBIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR

Method: X-RAY DIFFRACTION Dmax: 107.0 Å Quality: GOOD

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

THROMBIN

Bos taurus

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 364–622 Chain L; UniProt 328–363 Mutation:E192Q BOVINE PANCREATIC TRYPSIN INHIBITOR × 1 (P00974) X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.30 Å R-free 0.271
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain J; UniProt 328–363 Chain K; UniProt 364–622 Mutation:E192Q BOVINE PANCREATIC TRYPSIN INHIBITOR × 1 (P00974) X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.30 Å R-free 0.271

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 563 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 J; PDBConstruct 1–36; UniProt 328–363 Author chain L; PDBConstruct 1–36; UniProt 328–363 Author chain H; PDBConstruct 1–259; UniProt 364–622 Author chain K; PDBConstruct 1–259; UniProt 364–622

BOVINE PANCREATIC TRYPSIN INHIBITOR

OrganismNot specified

UniProt P00974

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 P; UniProt 36–93 Not recorded THROMBIN × 1 (P00734) THROMBIN × 1 (P00734) X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.30 Å R-free 0.271
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain Q; UniProt 36–93 Not recorded THROMBIN × 1 (P00734) THROMBIN × 1 (P00734) X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.30 Å R-free 0.271

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.

123 other PDB entries and 264 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BPT1_BOVIN
Isoform
PDB entities 3
Chains and sequence ranges Author chain P; PDBConstruct 1–58; UniProt 36–93 Author chain Q; PDBConstruct 1–58; UniProt 36–93

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 1bth

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1bth
Deposition date deposition_date1996-12-03
Structure title titleSTRUCTURE OF THROMBIN COMPLEXED WITH BOVINE PANCREATIC TRYPSIN INHIBITOR
Keywords keywords;THROMBIN INHIBITOR, SERINE PROTEINASE KUNITZ-LIKE INHIBITOR, (SERINE PROTEASE/INHIBITOR), COMPLEX (SERINE PROTEASE-INHIBITOR) COMPLEX ;; COMPLEX (SERINE PROTEASE/INHIBITOR)
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier33.98
Radius of gyration Rg (electron density) rg_electron33.73
Forward intensity I(0) i096985800.00
Molecular weight molecular_weight78455.0 kDa
Excluded volume excluded_volume97983 ų
Envelope volume envelope_volume125920 ų
Hydration-shell volume shell_volume30971 ų
Envelope diameter envelope_diameter105.0
Shell Rg shell_rg40.67
Envelope Rg envelope_rg32.99
Shape Rg shape_rg33.73
Total Rg total_rg34.25
Total atoms total_atoms5808
Residues n_residues686
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 dmax107.0
Rg (real space) rg_real34.08
Rg uncertainty (real space) rg_real_error0.85
I(0) (real space) i0_real9.6990e+07
I(0) uncertainty (real space) i0_real_error1.6280e+06
Rg (reciprocal space) rg_reciprocal34.02
I(0) (reciprocal space) i0_reciprocal96980000.0000
Solution quality estimate total_estimate0.7667
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.3
Skewness Skewness skewness0.246
Kurtosis Kurtosis kurtosis-0.925
Angular range angular_range— – 0.2350 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha21910000.0000
Real-space data points n_real_points48
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.740; Stabil: 0.999; Sysdev: 1.000; Positv: 1.000; Valcen: 0.745; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1bth.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
Domain ID domain_idd1bth.2
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
Domain ID domain_idd1bthp_
Class classg — Small proteins
Fold Fold foldg.8 — BPTI-like
Superfamily Superfamily superfamilyg.8.1 — BPTI-like
Family Family familyg.8.1.1 — Small Kunitz-type inhibitors & BPTI-like toxins
Domain ID domain_idd1bthq_
Class classg — Small proteins
Fold Fold foldg.8 — BPTI-like
Superfamily Superfamily superfamilyg.8.1 — BPTI-like
Family Family familyg.8.1.1 — Small Kunitz-type inhibitors & BPTI-like toxins

CATH v4.4 (6 domains)

Domain ID domain_id1bthH01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1bthH02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1bthK01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1bthK02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1bthP00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology410 — Factor Xa Inhibitor
Homologous superfamily homologous superfamily10 — Pancreatic trypsin inhibitor Kunitz domain
Domain ID domain_id1bthQ00
Class class4 — Few Secondary Structures
Architecture architecture10 — Irregular
Topology topology410 — Factor Xa Inhibitor
Homologous superfamily homologous superfamily10 — Pancreatic trypsin inhibitor Kunitz domain

8. Citations (4)

9. Files and Curves (10)