1bui

Structure of the ternary microplasmin-staphylokinase-microplasmin complex: a proteinase-cofactor-substrate complex in action

Method: X-RAY DIFFRACTION Dmax: 89.2 Å Quality: GOOD

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

Plasminogen

Homo sapiens

UniProt P00747

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 A; UniProt 561–810 Chain B; UniProt 561–810 Fragment:Peptidase S1 catalytic domain Staphylokinase × 1 (P15240) 0GJ L-alpha-glutamyl-N-{(1S)-4-{[amino(iminio)methyl]amino}-1-[(1S)-2-chloro-1-hydroxyethyl]butyl}glycinamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;pH 7.5 Resolution 2.65 Å R-free 0.287

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.

46 other PDB entries and 76 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PLMN_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–250; UniProt 561–810 Author chain B; PDBConstruct 1–250; UniProt 561–810

Staphylokinase

OrganismNot specified

UniProt P15240

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 C; UniProt 38–163 Not recorded Plasminogen × 2 (P00747) 0GJ L-alpha-glutamyl-N-{(1S)-4-{[amino(iminio)methyl]amino}-1-[(1S)-2-chloro-1-hydroxyethyl]butyl}glycinamide × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7.5;pH 7.5 Resolution 2.65 Å R-free 0.287

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.

No other PDB entry for the same UniProt protein was found.

View Construct and Data Evidence
UniProt name SAK_BPP42
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 3–128; UniProt 38–163

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 1bui

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1bui
Deposition date deposition_date1998-09-04
Structure title titleStructure of the ternary microplasmin-staphylokinase-microplasmin complex: a proteinase-cofactor-substrate complex in action
Keywords keywordsPLASMIN, STAPHYLOKINASE, SERINE PROTEINASE, FIBRINOLYSIS, COFACTOR, 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_guinier25.69
Radius of gyration Rg (electron density) rg_electron24.99
Forward intensity I(0) i0138696000.00
Molecular weight molecular_weight62165.0 kDa
Excluded volume excluded_volume60111 ų
Envelope volume envelope_volume99069 ų
Hydration-shell volume shell_volume32446 ų
Envelope diameter envelope_diameter92.2
Shell Rg shell_rg32.72
Envelope Rg envelope_rg25.09
Shape Rg shape_rg25.01
Total Rg total_rg25.57
Total atoms total_atoms4704
Residues n_residues617
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 dmax89.2
Rg (real space) rg_real25.59
Rg uncertainty (real space) rg_real_error0.53
I(0) (real space) i0_real1.3870e+08
I(0) uncertainty (real space) i0_real_error1.9390e+06
Rg (reciprocal space) rg_reciprocal25.62
I(0) (reciprocal space) i0_reciprocal138700000.0000
Solution quality estimate total_estimate0.8710
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary87.7
Skewness Skewness skewness0.217
Kurtosis Kurtosis kurtosis-0.444
Angular range angular_range— – 0.3100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha30860000.0000
Real-space data points n_real_points63
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.775; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 8 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1buia_
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_idd1buib_
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_idd1buic_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.15 — beta-Grasp (ubiquitin-like)
Superfamily Superfamily superfamilyd.15.5 — Staphylokinase/streptokinase
Family Family familyd.15.5.1 — Staphylokinase/streptokinase

CATH v4.4 (5 domains)

Domain ID domain_id1buiA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1buiA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1buiB01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1buiB02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology10 — Thrombin, subunit H
Homologous superfamily homologous superfamily10 — Trypsin-like serine proteases
Domain ID domain_id1buiC00
Class class3 — Alpha Beta
Architecture architecture10 — Roll
Topology topology20 — Ubiquitin-like (UB roll)
Homologous superfamily homologous superfamily130

8. Citations (1)

9. Files and Curves (10)