2r0u

Crystal Structure of Chek1 in Complex with Inhibitor 54

Method: X-RAY DIFFRACTION Dmax: 75.7 Å Quality: GOOD

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

Serine/threonine-protein kinase Chk1

Homo sapiens

UniProt O14757

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 monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain A; UniProt 1–307 Fragment:Protein kinase domain M54 6-(3-aminopropyl)-4-(3-hydroxyphenyl)-9-(1H-pyrazol-4-yl)benzo[h]isoquinolin-1(2H)-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.8;298 K;13% PEG8K, 0.1M ammonium sulfate, 2% glycerol, 0.1M sodium cacodylate buffer, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K Resolution 1.90 Å R-free 0.218

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.

162 other PDB entries and 172 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CHK1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–307; UniProt 1–307

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 2r0u

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 2r0u
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id2r0u
Deposition date deposition_date2007-08-21
Structure title titleCrystal Structure of Chek1 in Complex with Inhibitor 54
Keywords keywords;Chek1, Kinase, cell cycle check point, ATP-binding, Cytoplasm, DNA damage, DNA repair, Nucleotide-binding, Nucleus, Phosphorylation, Polymorphism, Serine/threonine-protein kinase, Transferase, Ubl conjugation ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier21.37
Radius of gyration Rg (electron density) rg_electron20.33
Forward intensity I(0) i016534900.00
Molecular weight molecular_weight31438.0 kDa
Excluded volume excluded_volume39693 ų
Envelope volume envelope_volume48038 ų
Hydration-shell volume shell_volume20119 ų
Envelope diameter envelope_diameter75.0
Shell Rg shell_rg26.57
Envelope Rg envelope_rg21.08
Shape Rg shape_rg20.31
Total Rg total_rg21.26
Total atoms total_atoms2217
Residues n_residues269
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 dmax75.7
Rg (real space) rg_real21.37
Rg uncertainty (real space) rg_real_error0.62
I(0) (real space) i0_real1.6530e+07
I(0) uncertainty (real space) i0_real_error2.2270e+05
Rg (reciprocal space) rg_reciprocal21.37
I(0) (reciprocal space) i0_reciprocal16530000.0000
Solution quality estimate total_estimate0.8567
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary24.5
Skewness Skewness skewness0.375
Kurtosis Kurtosis kurtosis-0.211
Angular range angular_range— – 0.3700 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha3760000.0000
Real-space data points n_real_points69
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.732; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.938; Smooth: 0.998

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd2r0ua_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.144 — Protein kinase-like (PK-like)
Superfamily Superfamily superfamilyd.144.1 — Protein kinase-like (PK-like)
Family Family familyd.144.1.7 — Protein kinases, catalytic subunit

CATH v4.4 (2 domains)

Domain ID domain_id2r0uA01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1
Domain ID domain_id2r0uA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1

8. Citations (1)

9. Files and Curves (10)