4cfv

Structure-based design of C8-substituted O6-cyclohexylmethoxyguanine CDK1 and 2 inhibitors.

Method: X-RAY DIFFRACTION Dmax: 110.3 Å Quality: REASONABLE

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

CYCLIN-DEPENDENT 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 heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain C; UniProt 1–298 Non-standard monomer:Yes (specific site not provided by mmCIF) CYCLIN-A2 × 1 (P20248) 75X 3-[2-amino-6-(cyclohexylmethoxy)-7H-purin-8-yl]-2-methylphenol × 1 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.205
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain A; UniProt 1–298 Non-standard monomer:Yes (specific site not provided by mmCIF) CYCLIN-A2 × 1 (P20248) 75X 3-[2-amino-6-(cyclohexylmethoxy)-7H-purin-8-yl]-2-methylphenol × 1 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.205

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 663 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 6–303; UniProt 1–298 Author chain C; PDBConstruct 6–303; UniProt 1–298

CYCLIN-A2

HOMO SAPIENS

UniProt P20248

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 D; UniProt 172–432 Fragment:CDK-ACTIVATING FRAGMENT, RESIDUES 175-432 CYCLIN-DEPENDENT KINASE 2 × 1 (P24941) 75X 3-[2-amino-6-(cyclohexylmethoxy)-7H-purin-8-yl]-2-methylphenol × 1 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.205
2 Protein heterocomplex Heteromer Protein × 2 PDB declaration: dimeric(2) Consistent with protein copy count Chain B; UniProt 172–432 Fragment:CDK-ACTIVATING FRAGMENT, RESIDUES 175-432 CYCLIN-DEPENDENT KINASE 2 × 1 (P24941) 75X 3-[2-amino-6-(cyclohexylmethoxy)-7H-purin-8-yl]-2-methylphenol × 1 MG MAGNESIUM ION × 2 X-RAY DIFFRACTION mmCIF provides none of the parsed experimental conditions Resolution 2.00 Å R-free 0.205

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.

113 other PDB entries and 211 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CCNA2_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 2–262; UniProt 172–432 Author chain D; PDBConstruct 2–262; UniProt 172–432

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 4cfv

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id4cfv
Deposition date deposition_date2013-11-19
Structure title titleStructure-based design of C8-substituted O6-cyclohexylmethoxyguanine CDK1 and 2 inhibitors.
Keywords keywordsTRANSFERASE, CYCLIN DEPENDENT KINASES, STRUCTURE-BASED DRUG DESIGN, CONFORMATIONAL RESTRAINT, REVERSED BINDING MODE; TRANSFERASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier34.18
Radius of gyration Rg (electron density) rg_electron33.40
Forward intensity I(0) i0217584000.00
Molecular weight molecular_weight125110.0 kDa
Excluded volume excluded_volume159320 ų
Envelope volume envelope_volume194690 ų
Hydration-shell volume shell_volume47614 ų
Envelope diameter envelope_diameter116.6
Shell Rg shell_rg41.02
Envelope Rg envelope_rg32.97
Shape Rg shape_rg33.42
Total Rg total_rg33.87
Total atoms total_atoms8826
Residues n_residues1088
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 dmax110.3
Rg (real space) rg_real34.09
Rg uncertainty (real space) rg_real_error0.75
I(0) (real space) i0_real2.1760e+08
I(0) uncertainty (real space) i0_real_error3.0120e+06
Rg (reciprocal space) rg_reciprocal34.15
I(0) (reciprocal space) i0_reciprocal217600000.0000
Solution quality estimate total_estimate0.6678
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary45.5
Skewness Skewness skewness0.219
Kurtosis Kurtosis kurtosis-0.392
Angular range angular_range— – 0.2300 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha125400000.0000
Real-space data points n_real_points47
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.897; Stabil: 1.000; Sysdev: 0.038; Positv: 1.000; Valcen: 0.998; Smooth: 0.876

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (5)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd4cfva1
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_idd4cfva2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags
Domain ID domain_idd4cfvc1
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_idd4cfvc2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (8 domains)

Domain ID domain_id4cfvA01
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_id4cfvA02
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_id4cfvB01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology472 — Cyclin A; domain 1
Homologous superfamily homologous superfamily10 — Cyclin-like
Domain ID domain_id4cfvB02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology472 — Cyclin A; domain 1
Homologous superfamily homologous superfamily10 — Cyclin-like
Domain ID domain_id4cfvC01
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_id4cfvC02
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_id4cfvD01
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology472 — Cyclin A; domain 1
Homologous superfamily homologous superfamily10 — Cyclin-like
Domain ID domain_id4cfvD02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology472 — Cyclin A; domain 1
Homologous superfamily homologous superfamily10 — Cyclin-like

8. Citations (1)

9. Files and Curves (10)