3p35

Polo-like kinase I Polo-box domain in complex with MQSpSPL phosphopeptide

Method: X-RAY DIFFRACTION Dmax: 89.4 Å Quality: EXCELLENT

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

Serine/threonine-protein kinase PLK1

Homo sapiens

UniProt P53350

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 × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 371–594 Fragment:Polo-box domain phosphopeptide × 1 GOL GLYCEROL × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2M potassium formate, 20% PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.09 Å R-free 0.273
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 371–594 Fragment:Polo-box domain phosphopeptide × 1 GOL GLYCEROL × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2M potassium formate, 20% PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.09 Å R-free 0.273
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 371–594 Fragment:Polo-box domain No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;293 K;0.2M potassium formate, 20% PEG 3350, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.09 Å R-free 0.273

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.

84 other PDB entries and 110 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name PLK1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 9–232; UniProt 371–594 Author chain B; PDBConstruct 9–232; UniProt 371–594 Author chain C; PDBConstruct 9–232; UniProt 371–594

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 3p35

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3p35
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3p35
Deposition date deposition_date2010-10-04
Structure title titlePolo-like kinase I Polo-box domain in complex with MQSpSPL phosphopeptide
Keywords keywordsphosphoprotein binding domain, Plk1, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.88
Radius of gyration Rg (electron density) rg_electron27.77
Forward intensity I(0) i0100034000.00
Molecular weight molecular_weight78083.0 kDa
Excluded volume excluded_volume97730 ų
Envelope volume envelope_volume124460 ų
Hydration-shell volume shell_volume36875 ų
Envelope diameter envelope_diameter94.5
Shell Rg shell_rg35.54
Envelope Rg envelope_rg27.51
Shape Rg shape_rg27.76
Total Rg total_rg28.63
Total atoms total_atoms5482
Residues n_residues671
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 dmax89.4
Rg (real space) rg_real28.72
Rg uncertainty (real space) rg_real_error0.57
I(0) (real space) i0_real1.0000e+08
I(0) uncertainty (real space) i0_real_error1.3440e+06
Rg (reciprocal space) rg_reciprocal28.79
I(0) (reciprocal space) i0_reciprocal100000000.0000
Solution quality estimate total_estimate0.9055
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary39.0
Skewness Skewness skewness0.116
Kurtosis Kurtosis kurtosis-0.495
Angular range angular_range— – 0.2750 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha38560000.0000
Real-space data points n_real_points56
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.928; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.996; Smooth: 0.989

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id3p35A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain
Domain ID domain_id3p35A02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain
Domain ID domain_id3p35B01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain
Domain ID domain_id3p35B02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain
Domain ID domain_id3p35C01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain
Domain ID domain_id3p35C02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology1120 — Arylsulfatase, C-terminal domain
Homologous superfamily homologous superfamily30 — POLO box domain

8. Citations (1)

9. Files and Curves (10)