9r5d

Crystal structure of human protein kinase CK2 catalytic subunit (isoenzyme ck2alpha'; CSNK2A2 gene product) in complex with 4,6-dibromo-5,7-difluoro-1H-1,2,3-benzotriazole

Method: X-RAY DIFFRACTION Dmax: 69.7 Å Quality: GOOD

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

;Casein kinase II subunit alpha' ;

Homo sapiens

UniProt P19784

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 1–350 Not recorded EDO 1,2-ETHANEDIOL × 5 A1JC0 4,6-bis(bromanyl)-5,7-bis(fluoranyl)-1~{H}-benzotriazole × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293.15 K;Reservoir was: 900 mM LiCl, 100 mM TRIS-HCl pH 8.5, 28 % PEG6000. Protein/Ligand mix: 5 mg per mL CK2alpha Prime mixed with 2 mM ligand and 10 % DMSO. Drop: 2:1 mix of protein and ligand vs resevoir Optimization: Micro- and macroseeding Resolution 1.02 Å R-free 0.193

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.

55 other PDB entries and 70 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CSK22_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 15–364; UniProt 1–350

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 9r5d

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9r5d
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9r5d
Deposition date deposition_date2025-05-08
最后修订 last_revision2026-01-14
Structure title titleCrystal structure of human protein kinase CK2 catalytic subunit (isoenzyme ck2alpha'; CSNK2A2 gene product) in complex with 4,6-dibromo-5,7-difluoro-1H-1,2,3-benzotriazole
Keywords keywords;human protein kinase CK2, human casein kinase 2, isoenzyme ck2alpha', CSNK2A2, 4, 6-dibromo-5, 7-difluoro-1H-1, 2, 3-benzotriazole, TRANSFERASE ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier21.80
Radius of gyration Rg (electron density) rg_electron20.57
Forward intensity I(0) i026099200.00
Molecular weight molecular_weight39769.0 kDa
Excluded volume excluded_volume50023 ų
Envelope volume envelope_volume58002 ų
Hydration-shell volume shell_volume23277 ų
Envelope diameter envelope_diameter70.9
Shell Rg shell_rg27.62
Envelope Rg envelope_rg20.86
Shape Rg shape_rg20.57
Total Rg total_rg21.52
Total atoms total_atoms5573
Residues n_residues328
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 dmax69.7
Rg (real space) rg_real21.69
Rg uncertainty (real space) rg_real_error0.38
I(0) (real space) i0_real2.6100e+07
I(0) uncertainty (real space) i0_real_error3.3430e+05
Rg (reciprocal space) rg_reciprocal21.71
I(0) (reciprocal space) i0_reciprocal26100000.0000
Solution quality estimate total_estimate0.8968
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.0
Skewness Skewness skewness0.237
Kurtosis Kurtosis kurtosis-0.376
Angular range angular_range— – 0.3650 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha8386000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.886; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.997

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

8. Citations (2)

9. Files and Curves (10)