9fbm

Structure of human protein kinase CK2 catalytic subunit (CK2alpha, CSNK2A1 gene product) in complex with the cyclic peptidomimetic compound 12 discovered by high-throughput screening

Method: X-RAY DIFFRACTION Dmax: 118.3 Å Quality: EXCELLENT

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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–335 Not recorded Cyclic peptidomimetic compound FMP37 × 1 NIO NICOTINIC ACID × 1 SO4 SULFATE ION × 4 NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;protein solution: 97.5 mikroliter CK2alpha-1-335 solution (7 mg/ml in 500 mmol/l NaCl, 25 mmol/l Tris/HCl, pH 8.5) was mixed with 2.5 mikroliter 20 millimolar FMP37 in DMSO and incubated for 30 min. reservoir: 1.5 mol/l lithium sulphate, 100 mM sodium HEPES buffer, pH 7.5. crystallization drop: 4 microliter protein solution plus 2 microliter reservoir. Resolution 2.05 Å R-free 0.239
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–335 Not recorded Cyclic peptidomimetic compound FMP37 × 1 NIO NICOTINIC ACID × 1 SO4 SULFATE ION × 3 NA SODIUM ION × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;protein solution: 97.5 mikroliter CK2alpha-1-335 solution (7 mg/ml in 500 mmol/l NaCl, 25 mmol/l Tris/HCl, pH 8.5) was mixed with 2.5 mikroliter 20 millimolar FMP37 in DMSO and incubated for 30 min. reservoir: 1.5 mol/l lithium sulphate, 100 mM sodium HEPES buffer, pH 7.5. crystallization drop: 4 microliter protein solution plus 2 microliter reservoir. Resolution 2.05 Å R-free 0.239
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–335 Not recorded Cyclic peptidomimetic compound FMP37 × 1 NIO NICOTINIC ACID × 1 SO4 SULFATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 7.5;293 K;protein solution: 97.5 mikroliter CK2alpha-1-335 solution (7 mg/ml in 500 mmol/l NaCl, 25 mmol/l Tris/HCl, pH 8.5) was mixed with 2.5 mikroliter 20 millimolar FMP37 in DMSO and incubated for 30 min. reservoir: 1.5 mol/l lithium sulphate, 100 mM sodium HEPES buffer, pH 7.5. crystallization drop: 4 microliter protein solution plus 2 microliter reservoir. Resolution 2.05 Å R-free 0.239

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 446 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 15–349; UniProt 1–335 Author chain B; PDBConstruct 15–349; UniProt 1–335 Author chain C; PDBConstruct 15–349; UniProt 1–335

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 9fbm

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id9fbm
Deposition date deposition_date2024-05-14
Structure title titleStructure of human protein kinase CK2 catalytic subunit (CK2alpha, CSNK2A1 gene product) in complex with the cyclic peptidomimetic compound 12 discovered by high-throughput screening
Keywords keywords;human protein kinase ck2 catalytic subunit alpha, csnk2a1 gene product, inhibition of ck2alpha/ck2beta subunit interaction, transferase ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier36.66
Radius of gyration Rg (electron density) rg_electron36.25
Forward intensity I(0) i0439791000.00
Molecular weight molecular_weight113730.0 kDa
Excluded volume excluded_volume110060 ų
Envelope volume envelope_volume197050 ų
Hydration-shell volume shell_volume45578 ų
Envelope diameter envelope_diameter121.4
Shell Rg shell_rg42.45
Envelope Rg envelope_rg35.60
Shape Rg shape_rg36.25
Total Rg total_rg36.55
Total atoms total_atoms8613
Residues n_residues1003
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 dmax118.3
Rg (real space) rg_real36.58
Rg uncertainty (real space) rg_real_error0.82
I(0) (real space) i0_real4.3980e+08
I(0) uncertainty (real space) i0_real_error6.9850e+06
Rg (reciprocal space) rg_reciprocal36.63
I(0) (reciprocal space) i0_reciprocal439800000.0000
Solution quality estimate total_estimate0.9010
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary49.5
Skewness Skewness skewness0.184
Kurtosis Kurtosis kurtosis-0.606
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha46160000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.935; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.980; Smooth: 0.924

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (6)

8. Citations (3)

9. Files and Curves (10)