3q9y

Crystal structure of human CK2 alpha in complex with Quinalizarin at pH 8.5

Method: X-RAY DIFFRACTION Dmax: 72.0 Å Quality: GOOD

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

Casein kinase II subunit alpha

Homo sapiens

UniProt P68400

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 1–336 Fragment:UNP residues 1-336 TXQ 1,2,5,8-tetrahydroxyanthracene-9,10-dione × 1 SO4 SULFATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;30% PEG 4000, 0.2M lithium sulfate, 0.1M TrisHCl, pH 8.5, vapor diffusion, sitting drop, temperature 293K Resolution 1.80 Å R-free 0.241

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.

313 other PDB entries and 448 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CSK21_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–336; UniProt 1–336

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 3q9y

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3q9y
Download Download

2. Structure Basics 2. Structure Basics

Entry ID entry_id3q9y
Deposition date deposition_date2011-01-10
Structure title titleCrystal structure of human CK2 alpha in complex with Quinalizarin at pH 8.5
Keywords keywordsprotein kinase, 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_guinier21.66
Radius of gyration Rg (electron density) rg_electron20.46
Forward intensity I(0) i026719300.00
Molecular weight molecular_weight39668.0 kDa
Excluded volume excluded_volume49617 ų
Envelope volume envelope_volume58124 ų
Hydration-shell volume shell_volume23374 ų
Envelope diameter envelope_diameter73.5
Shell Rg shell_rg27.48
Envelope Rg envelope_rg20.80
Shape Rg shape_rg20.47
Total Rg total_rg21.31
Total atoms total_atoms2800
Residues n_residues327
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 dmax72.0
Rg (real space) rg_real21.57
Rg uncertainty (real space) rg_real_error0.42
I(0) (real space) i0_real2.6720e+07
I(0) uncertainty (real space) i0_real_error3.2570e+05
Rg (reciprocal space) rg_reciprocal21.59
I(0) (reciprocal space) i0_reciprocal26720000.0000
Solution quality estimate total_estimate0.8814
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.8
Skewness Skewness skewness0.252
Kurtosis Kurtosis kurtosis-0.342
Angular range angular_range— – 0.3650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha9477000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.825; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.997; Smooth: 0.981

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd3q9ya_
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_id3q9yA01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1
Domain ID domain_id3q9yA02
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology200 — Phosphorylase Kinase; domain 1
Homologous superfamily homologous superfamily20 — Phosphorylase Kinase; domain 1

8. Citations (1)

9. Files and Curves (10)