4o6w

Peptide-Based Inhibitors of Plk1 Polo-box Domain

Method: X-RAY DIFFRACTION Dmax: 71.8 Å Quality: REASONABLE

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 371–603 Fragment:Polo box domain (UNP residues 371-603) Peptide-Based inhibitor × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.5;298 K;13% (w/v) PEG 3350, 0.1 M HEPES pH 7.5 and 100 mM NaCl, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.45 Å R-free 0.215

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 112 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 5–237; UniProt 371–603

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 4o6w

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4o6w
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4o6w
Deposition date deposition_date2013-12-23
Structure title titlePeptide-Based Inhibitors of Plk1 Polo-box Domain
Keywords keywordsPolo box domain, phospho-peptide binding, phosphopeptide, TRANSFERASE-TRANSFERASE INHIBITOR complex; TRANSFERASE/TRANSFERASE INHIBITOR
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier19.30
Radius of gyration Rg (electron density) rg_electron18.19
Forward intensity I(0) i012131700.00
Molecular weight molecular_weight26099.0 kDa
Excluded volume excluded_volume32763 ų
Envelope volume envelope_volume37586 ų
Hydration-shell volume shell_volume17713 ų
Envelope diameter envelope_diameter67.9
Shell Rg shell_rg24.03
Envelope Rg envelope_rg18.41
Shape Rg shape_rg18.18
Total Rg total_rg19.13
Total atoms total_atoms1835
Residues n_residues220
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 dmax71.8
Rg (real space) rg_real19.28
Rg uncertainty (real space) rg_real_error0.59
I(0) (real space) i0_real1.2130e+07
I(0) uncertainty (real space) i0_real_error1.7500e+05
Rg (reciprocal space) rg_reciprocal19.29
I(0) (reciprocal space) i0_reciprocal12130000.0000
Solution quality estimate total_estimate0.7397
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.2
Skewness Skewness skewness0.403
Kurtosis Kurtosis kurtosis-0.097
Angular range angular_range— – 0.4100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3827000.0000
Real-space data points n_real_points72
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.580; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.871; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4o6wa1
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.223 — Polo-box domain
Superfamily Superfamily superfamilyd.223.1 — Polo-box domain
Family Family familyd.223.1.2 — Polo-box duplicated region
Domain ID domain_idd4o6wa2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.223 — Polo-box domain
Superfamily Superfamily superfamilyd.223.1 — Polo-box domain
Family Family familyd.223.1.2 — Polo-box duplicated region

CATH v4.4 (2 domains)

Domain ID domain_id4o6wA01
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_id4o6wA02
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)