3fwq

Inactive conformation of human protein kinase CK2 catalytic subunit

Method: X-RAY DIFFRACTION Dmax: 93.3 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 1–335 Mutation:residues 1-335 GOL GLYCEROL × 2 SO4 SULFATE ION × 1 CL CHLORIDE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;Protein stock solution: 10mg/ml CK2alpha, 500mM sodium chloride, 25mM Tris/HCl, pH 8.5; Reservoir: 2M ammonium sulfate, 2M sodium chloride; Drop: 0.001mL reservoir solution, 0.001mL protein stock solution, 0.003mL 1mM AMPPNP, 0.0006mL 10mM magnesium chloride, 0.0001mL glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.30 Å R-free 0.233
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 1–335 Mutation:residues 1-335 GOL GLYCEROL × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, SITTING DROP;pH 8.5;293 K;Protein stock solution: 10mg/ml CK2alpha, 500mM sodium chloride, 25mM Tris/HCl, pH 8.5; Reservoir: 2M ammonium sulfate, 2M sodium chloride; Drop: 0.001mL reservoir solution, 0.001mL protein stock solution, 0.003mL 1mM AMPPNP, 0.0006mL 10mM magnesium chloride, 0.0001mL glycerol, VAPOR DIFFUSION, SITTING DROP, temperature 293K Resolution 2.30 Å R-free 0.233

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 447 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 1–335; UniProt 1–335 Author chain B; PDBConstruct 1–335; 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 3fwq

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3fwq
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3fwq
Deposition date deposition_date2009-01-19
Structure title titleInactive conformation of human protein kinase CK2 catalytic subunit
Keywords keywords;casein kinase 2, protein kinase CK2, eukaryotic protein kinases, inactive conformation, ATP-binding, Kinase, Nucleotide-binding, Phosphoprotein, Serine/threonine-protein kinase, Transferase, Wnt signaling pathway ;; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.02
Radius of gyration Rg (electron density) rg_electron27.07
Forward intensity I(0) i0103105000.00
Molecular weight molecular_weight80291.0 kDa
Excluded volume excluded_volume100490 ų
Envelope volume envelope_volume120410 ų
Hydration-shell volume shell_volume36588 ų
Envelope diameter envelope_diameter104.2
Shell Rg shell_rg34.92
Envelope Rg envelope_rg27.29
Shape Rg shape_rg27.09
Total Rg total_rg27.76
Total atoms total_atoms5662
Residues n_residues668
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 dmax93.3
Rg (real space) rg_real27.96
Rg uncertainty (real space) rg_real_error0.76
I(0) (real space) i0_real1.0310e+08
I(0) uncertainty (real space) i0_real_error1.5170e+06
Rg (reciprocal space) rg_reciprocal27.98
I(0) (reciprocal space) i0_reciprocal103100000.0000
Solution quality estimate total_estimate0.8035
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks3
Primary peak position r_peak_primary34.4
Skewness Skewness skewness0.320
Kurtosis Kurtosis kurtosis-0.303
Angular range angular_range— – 0.2850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha47570000.0000
Real-space data points n_real_points58
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.815; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.000

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd3fwqa_
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
Domain ID domain_idd3fwqb_
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 (4 domains)

Domain ID domain_id3fwqA01
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_id3fwqA02
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_id3fwqB01
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_id3fwqB02
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 (10)

9. Files and Curves (10)