1y8y

Crystal structure of human CDK2 complexed with a pyrazolo[1,5-a]pyrimidine inhibitor

Method: X-RAY DIFFRACTION Dmax: 66.8 Å Quality: GOOD

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

Cell division protein kinase 2

Homo sapiens

UniProt P24941

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 1–298 Not recorded CT7 (5-CHLOROPYRAZOLO[1,5-A]PYRIMIDIN-7-YL)-(4-METHANESULFONYLPHENYL)AMINE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 7.2;293 K;PEG 3350, Hepes, Ammonium acetate, pH 7.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.00 Å R-free 0.272

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.

518 other PDB entries and 664 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CDK2_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–298; UniProt 1–298

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 1y8y

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1y8y
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1y8y
Deposition date deposition_date2004-12-14
Structure title titleCrystal structure of human CDK2 complexed with a pyrazolo[1,5-a]pyrimidine inhibitor
Keywords keywordsSerine/Threonine protein kinase, CDK2, ATP-binding, Cell cycle, mitosis, phosphorylation, pyrazolopyrimidine inhibitor, TRANSFERASE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier20.60
Radius of gyration Rg (electron density) rg_electron19.52
Forward intensity I(0) i017480900.00
Molecular weight molecular_weight33497.0 kDa
Excluded volume excluded_volume42763 ų
Envelope volume envelope_volume49559 ų
Hydration-shell volume shell_volume21154 ų
Envelope diameter envelope_diameter66.5
Shell Rg shell_rg25.96
Envelope Rg envelope_rg19.77
Shape Rg shape_rg19.51
Total Rg total_rg20.47
Total atoms total_atoms2366
Residues n_residues292
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 dmax66.8
Rg (real space) rg_real20.52
Rg uncertainty (real space) rg_real_error0.49
I(0) (real space) i0_real1.7480e+07
I(0) uncertainty (real space) i0_real_error2.3660e+05
Rg (reciprocal space) rg_reciprocal20.54
I(0) (reciprocal space) i0_reciprocal17480000.0000
Solution quality estimate total_estimate0.8084
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.1
Skewness Skewness skewness0.266
Kurtosis Kurtosis kurtosis-0.290
Angular range angular_range— – 0.3850 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4864000.0000
Real-space data points n_real_points70
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.836; Stabil: 0.999; 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 (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1y8ya_
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_id1y8yA01
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_id1y8yA02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology510 — Transferase(Phosphotransferase); domain 1
Homologous superfamily homologous superfamily10 — Transferase(Phosphotransferase) domain 1

8. Citations (1)

9. Files and Curves (10)