1yc4

Crystal structure of human HSP90alpha complexed with dihydroxyphenylpyrazoles

Method: X-RAY DIFFRACTION Dmax: 55.7 Å Quality: REASONABLE

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

Heat shock protein HSP 90-alpha

Homo sapiens

UniProt P07900

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 8–235 Fragment:sequence database residues 8-223 Mutation:M12C 43P 4-(1H-IMIDAZOL-4-YL)-3-(5-ETHYL-2,4-DIHYDROXY-PHENYL)-1H-PYRAZOLE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 9;277 K;PEG 6000, LiCl, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 277K Resolution 1.81 Å R-free 0.220

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.

438 other PDB entries and 530 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HS90A_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 37–264; UniProt 8–235

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 1yc4

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1yc4
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1yc4
Deposition date deposition_date2004-12-21
Structure title titleCrystal structure of human HSP90alpha complexed with dihydroxyphenylpyrazoles
Keywords keywordscell-cycle, cancer, drug design, CELL CYCLE; CELL CYCLE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier17.96
Radius of gyration Rg (electron density) rg_electron16.63
Forward intensity I(0) i09929730.00
Molecular weight molecular_weight23754.0 kDa
Excluded volume excluded_volume29912 ų
Envelope volume envelope_volume33819 ų
Hydration-shell volume shell_volume16844 ų
Envelope diameter envelope_diameter54.9
Shell Rg shell_rg22.99
Envelope Rg envelope_rg16.98
Shape Rg shape_rg16.62
Total Rg total_rg17.71
Total atoms total_atoms1674
Residues n_residues210
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 dmax55.7
Rg (real space) rg_real17.82
Rg uncertainty (real space) rg_real_error0.22
I(0) (real space) i0_real9.9300e+06
I(0) uncertainty (real space) i0_real_error1.0490e+05
Rg (reciprocal space) rg_reciprocal17.84
I(0) (reciprocal space) i0_reciprocal9930000.0000
Solution quality estimate total_estimate0.7211
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary23.3
Skewness Skewness skewness0.080
Kurtosis Kurtosis kurtosis-0.481
Angular range angular_range— – 0.4450 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha2245000.0000
Real-space data points n_real_points75
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.902; Stabil: 1.000; Sysdev: 0.227; Positv: 1.000; Valcen: 0.982; Smooth: 0.999

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1yc4a_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.122 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Superfamily Superfamily superfamilyd.122.1 — ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase
Family Family familyd.122.1.1 — Heat shock protein 90, HSP90, N-terminal domain

CATH v4.4 (1 domains)

Domain ID domain_id1yc4A00
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology565 — Heat Shock Protein 90
Homologous superfamily homologous superfamily10 — Histidine kinase-like ATPase, C-terminal domain

8. Citations (1)

9. Files and Curves (10)