4ib5

Structure of human protein kinase CK2 catalytic subunit in complex with a CK2beta-competitive cyclic peptide

Method: X-RAY DIFFRACTION Dmax: 122.4 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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–335 Fragment:UNP residues 1-355 CK2beta-derived cyclic peptide × 1 GOL GLYCEROL × 5 CL CHLORIDE ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.20 Å R-free 0.218
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 1–335 Fragment:UNP residues 1-355 CK2beta-derived cyclic peptide × 1 GOL GLYCEROL × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.20 Å R-free 0.218
3 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–335 Fragment:UNP residues 1-355 CK2beta-derived cyclic peptide × 1 GOL GLYCEROL × 3 CL CHLORIDE ION × 1 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.20 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.

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 1–335; UniProt 1–335 Author chain B; PDBConstruct 1–335; UniProt 1–335 Author chain C; 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 4ib5

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4ib5
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4ib5
Deposition date deposition_date2012-12-08
Structure title titleStructure of human protein kinase CK2 catalytic subunit in complex with a CK2beta-competitive cyclic peptide
Keywords keywordsprotein kinase fold, protein phosphorylation, Binding of CK2beta, Phosphorylation, Nucleus, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier37.14
Radius of gyration Rg (electron density) rg_electron36.58
Forward intensity I(0) i0237524000.00
Molecular weight molecular_weight125040.0 kDa
Excluded volume excluded_volume156730 ų
Envelope volume envelope_volume205050 ų
Hydration-shell volume shell_volume47605 ų
Envelope diameter envelope_diameter128.0
Shell Rg shell_rg41.77
Envelope Rg envelope_rg36.09
Shape Rg shape_rg36.57
Total Rg total_rg36.98
Total atoms total_atoms8824
Residues n_residues1044
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 dmax122.4
Rg (real space) rg_real37.15
Rg uncertainty (real space) rg_real_error1.03
I(0) (real space) i0_real2.3750e+08
I(0) uncertainty (real space) i0_real_error3.7560e+06
Rg (reciprocal space) rg_reciprocal37.15
I(0) (reciprocal space) i0_reciprocal237500000.0000
Solution quality estimate total_estimate0.8895
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary39.9
Skewness Skewness skewness0.300
Kurtosis Kurtosis kurtosis-0.497
Angular range angular_range— – 0.2150 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha39460000.0000
Real-space data points n_real_points44
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.913; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.963; Smooth: 0.856

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id4ib5A01
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_id4ib5A02
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_id4ib5B01
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_id4ib5B02
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_id4ib5C01
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_id4ib5C02
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 (3)

9. Files and Curves (10)