9h8c

Human CDK8/Cyclin-C complex with inhibitor 2-9

Method: X-RAY DIFFRACTION Dmax: 89.9 Å Quality: EXCELLENT

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

Cyclin-dependent kinase 8

Homo sapiens

UniProt P49336

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 1–403 Not recorded Cyclin-C × 1 (P24863) EDO 1,2-ETHANEDIOL × 1 GOL GLYCEROL × 2 A1IS8 4-[(3~{S})-3-[2-[(3~{R})-3-fluoranylpyrrolidin-1-yl]pyrimidin-4-yl]piperidin-1-yl]carbonyl-1~{H}-pyrrole-2-carbonitrile × 1 DMS DIMETHYL SULFOXIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;PEG3350, MES pH6.5, HEPES pH6.8, Sodium Formate Resolution 2.57 Å R-free 0.262

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.

35 other PDB entries and 35 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CDK8_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 12–414; UniProt 1–403

Cyclin-C

Homo sapiens

UniProt P24863

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 B; UniProt 1–283 Not recorded Cyclin-dependent kinase 8 × 1 (P49336) EDO 1,2-ETHANEDIOL × 1 GOL GLYCEROL × 2 A1IS8 4-[(3~{S})-3-[2-[(3~{R})-3-fluoranylpyrrolidin-1-yl]pyrimidin-4-yl]piperidin-1-yl]carbonyl-1~{H}-pyrrole-2-carbonitrile × 1 DMS DIMETHYL SULFOXIDE × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;293 K;PEG3350, MES pH6.5, HEPES pH6.8, Sodium Formate Resolution 2.57 Å R-free 0.262

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.

35 other PDB entries and 35 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name CCNC_HUMAN
Isoform
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 31–313; UniProt 1–283

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 9h8c

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 9h8c
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2. Structure Basics 2. Structure Basics

Entry ID entry_id9h8c
Deposition date deposition_date2024-10-29
Structure title titleHuman CDK8/Cyclin-C complex with inhibitor 2-9
Keywords keywordsKinase, Inhibitor, CDK8, Cyclin Dependent Kinase, Cyclin, Transcription-Transferase-Inhibitor Complex, TRANSCRIPTION; TRANSCRIPTION
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier28.56
Radius of gyration Rg (electron density) rg_electron27.82
Forward intensity I(0) i0152096000.00
Molecular weight molecular_weight66454.0 kDa
Excluded volume excluded_volume64945 ų
Envelope volume envelope_volume110650 ų
Hydration-shell volume shell_volume33044 ų
Envelope diameter envelope_diameter93.4
Shell Rg shell_rg35.24
Envelope Rg envelope_rg27.89
Shape Rg shape_rg27.80
Total Rg total_rg28.42
Total atoms total_atoms5038
Residues n_residues602
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 dmax89.9
Rg (real space) rg_real28.52
Rg uncertainty (real space) rg_real_error0.47
I(0) (real space) i0_real1.5210e+08
I(0) uncertainty (real space) i0_real_error2.1480e+06
Rg (reciprocal space) rg_reciprocal28.53
I(0) (reciprocal space) i0_reciprocal152100000.0000
Solution quality estimate total_estimate0.9033
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary30.5
Skewness Skewness skewness0.266
Kurtosis Kurtosis kurtosis-0.568
Angular range angular_range— – 0.2800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha30760000.0000
Real-space data points n_real_points57
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.943; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.991; Smooth: 0.918

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (7)

8. Citations (1)

9. Files and Curves (10)