3egh

Crystal structure of a complex between Protein Phosphatase 1 alpha (PP1), the PP1 binding and PDZ domains of Spinophilin and the small natural molecular toxin Nodularin-R

Method: X-RAY DIFFRACTION Dmax: 109.7 Å Quality: GOOD

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

Serine/threonine-protein phosphatase PP1-alpha catalytic subunit

Homo sapiens

UniProt P62136

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 × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain A; UniProt 7–330 Chain B; UniProt 7–330 Not recorded Spinophilin × 2 (O35274) nodularin R × 2 GOL GLYCEROL × 4 MN MANGANESE (II) ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 Å R-free 0.235
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 7–330 Not recorded Spinophilin × 1 (O35274) nodularin R × 1 GOL GLYCEROL × 4 MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 Å R-free 0.235
3 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain B; UniProt 7–330 Not recorded Spinophilin × 1 (O35274) nodularin R × 1 MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 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.

45 other PDB entries and 86 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PP1A_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 6–329; UniProt 7–330 Author chain B; PDBConstruct 6–329; UniProt 7–330

Spinophilin

Rattus norvegicus

UniProt O35274

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 × 6 PDB declaration: hexameric(6) Consistent with protein copy count Chain C; UniProt 417–583 Chain D; UniProt 417–583 Fragment:PP1 binding and PDZ domains Serine/threonine-protein phosphatase PP1-alpha catalytic subunit × 2 (P62136) nodularin R × 2 GOL GLYCEROL × 4 MN MANGANESE (II) ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 Å R-free 0.235
2 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain C; UniProt 417–583 Fragment:PP1 binding and PDZ domains Serine/threonine-protein phosphatase PP1-alpha catalytic subunit × 1 (P62136) nodularin R × 1 GOL GLYCEROL × 4 MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 Å R-free 0.235
3 Protein heterocomplex Heteromer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain D; UniProt 417–583 Fragment:PP1 binding and PDZ domains Serine/threonine-protein phosphatase PP1-alpha catalytic subunit × 1 (P62136) nodularin R × 1 MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.5;277 K;0.1M MES, 15% PEG 550 MME, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K Resolution 2.00 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.

2 other PDB entries and 3 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name NEB2_RAT
Isoform
PDB entities 2
Chains and sequence ranges Author chain C; PDBConstruct 4–170; UniProt 417–583 Author chain D; PDBConstruct 4–170; UniProt 417–583

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 3egh

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3egh
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3egh
Deposition date deposition_date2008-09-10
Structure title titleCrystal structure of a complex between Protein Phosphatase 1 alpha (PP1), the PP1 binding and PDZ domains of Spinophilin and the small natural molecular toxin Nodularin-R
Keywords keywords;PP1, Serine/Threonine Phosphatase, Post Synaptic Density, Inhibitor, Carbohydrate metabolism, Cell cycle, Cell division, Glycogen metabolism, Hydrolase, Iron, Manganese, Metal-binding, Phosphoprotein, Protein phosphatase, Actin-binding, Cell junction, Cell projection, Cytoskeleton, Developmental protein, Differentiation, Neurogenesis, Nucleus, Synapse, 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_guinier32.37
Radius of gyration Rg (electron density) rg_electron32.01
Forward intensity I(0) i0130272000.00
Molecular weight molecular_weight92000.0 kDa
Excluded volume excluded_volume115310 ų
Envelope volume envelope_volume140330 ų
Hydration-shell volume shell_volume37364 ų
Envelope diameter envelope_diameter116.9
Shell Rg shell_rg37.76
Envelope Rg envelope_rg32.19
Shape Rg shape_rg32.02
Total Rg total_rg32.45
Total atoms total_atoms6464
Residues n_residues816
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 dmax109.7
Rg (real space) rg_real32.56
Rg uncertainty (real space) rg_real_error0.93
I(0) (real space) i0_real1.3030e+08
I(0) uncertainty (real space) i0_real_error2.1580e+06
Rg (reciprocal space) rg_reciprocal32.48
I(0) (reciprocal space) i0_reciprocal130300000.0000
Solution quality estimate total_estimate0.8548
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary31.4
Skewness Skewness skewness0.466
Kurtosis Kurtosis kurtosis-0.341
Angular range angular_range— – 0.2450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha51020000.0000
Real-space data points n_real_points50
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.799; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.906; Smooth: 0.806

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

7. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id3eghA00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology21 — Purple Acid Phosphatase; chain A, domain 2
Homologous superfamily homologous superfamily10 — Metallo-dependent phosphatases
Domain ID domain_id3eghB00
Class class3 — Alpha Beta
Architecture architecture60 — 4-Layer Sandwich
Topology topology21 — Purple Acid Phosphatase; chain A, domain 2
Homologous superfamily homologous superfamily10 — Metallo-dependent phosphatases
Domain ID domain_id3eghC01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology42 — Pdz3 Domain
Homologous superfamily homologous superfamily10 — PDZ domain

8. Citations (1)

9. Files and Curves (10)