1mkw

THE CO-CRYSTAL STRUCTURE OF UNLIGANDED BOVINE ALPHA-THROMBIN AND PRETHROMBIN-2: MOVEMENT OF THE YPPW SEGMENT AND ACTIVE SITE RESIDUES UPON LIGAND BINDING

Method: X-RAY DIFFRACTION Dmax: 93.2 Å Quality: GOOD

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

ALPHA-THROMBIN

OrganismNot specified

UniProt P00735

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain H; UniProt 367–625 Chain L; UniProt 318–366 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 4.6;24% POLYETHYLENE GLYCOL 2000, 0.1M SODIUM ACETATE, PH 4.6, 0.2M AMMONIUM SULFATE Resolution 2.30 Å R-free 0.282
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain K; UniProt 318–625 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:pH 4.6;24% POLYETHYLENE GLYCOL 2000, 0.1M SODIUM ACETATE, PH 4.6, 0.2M AMMONIUM SULFATE Resolution 2.30 Å R-free 0.282

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.

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

View Construct and Data Evidence
UniProt name THRB_BOVIN
Isoform
PDB entities 1, 2, 3
Chains and sequence ranges Author chain L; PDBConstruct 1–49; UniProt 318–366 Author chain H; PDBConstruct 1–259; UniProt 367–625 Author chain K; PDBConstruct 1–308; UniProt 318–625

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 1mkw

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1mkw
Deposition date deposition_date1997-03-13
Structure title titleTHE CO-CRYSTAL STRUCTURE OF UNLIGANDED BOVINE ALPHA-THROMBIN AND PRETHROMBIN-2: MOVEMENT OF THE YPPW SEGMENT AND ACTIVE SITE RESIDUES UPON LIGAND BINDING
Keywords keywords;COMPLEX (BLOOD COAGULATION-PROENZYME), THROMBIN, PRETHROMBIN-2, PLASMA, SERINE PROTEASE, COMPLEX (BLOOD COAGULATION-PROENZYME) complex ;; COMPLEX (BLOOD COAGULATION/PROENZYME)
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.69
Radius of gyration Rg (electron density) rg_electron28.43
Forward intensity I(0) i069230300.00
Molecular weight molecular_weight65788.0 kDa
Excluded volume excluded_volume82635 ų
Envelope volume envelope_volume101070 ų
Hydration-shell volume shell_volume30580 ų
Envelope diameter envelope_diameter98.9
Shell Rg shell_rg34.76
Envelope Rg envelope_rg28.21
Shape Rg shape_rg28.40
Total Rg total_rg29.12
Total atoms total_atoms4633
Residues n_residues483
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 dmax93.2
Rg (real space) rg_real28.81
Rg uncertainty (real space) rg_real_error0.63
I(0) (real space) i0_real6.9230e+07
I(0) uncertainty (real space) i0_real_error9.4250e+05
Rg (reciprocal space) rg_reciprocal28.76
I(0) (reciprocal space) i0_reciprocal69230000.0000
Solution quality estimate total_estimate0.8618
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary27.1
Skewness Skewness skewness0.442
Kurtosis Kurtosis kurtosis-0.512
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha62220000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.794; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.886; Smooth: 0.931

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1mkw.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_idd1mkwk_
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 (4 domains)

Domain ID domain_id1mkwH01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1mkwH02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1mkwK01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1mkwK02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases

8. Citations (3)

9. Files and Curves (10)