3iou

Huntingtin amino-terminal region with 17 Gln residues - crystal C94

Method: X-RAY DIFFRACTION Dmax: 117.2 Å Quality: EXCELLENT

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

Maltose-binding periplasmic protein,Huntingtin

Homo sapiens

UniProt P0AEX9

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 27–384 Chain B; UniProt 27–384 Chain C; UniProt 27–384 Fragment:Fusion protein, see remark 999,Fusion protein, see remark 999 ZN ZINC ION × 8 CA CALCIUM ION × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;278 K;12% PEG 4000, 200 mM Zn acetate, 200 mM Sodium acetate, 100 mM Sodium Cacodylate pH 6.5-7.4, VAPOR DIFFUSION, HANGING DROP, temperature 278K Resolution 3.70 Å R-free 0.299

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.

366 other PDB entries and 491 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name MALE_ECOLI
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–358; UniProt 27–384 Author chain B; PDBConstruct 1–358; UniProt 27–384 Author chain C; PDBConstruct 1–358; UniProt 27–384

Maltose-binding periplasmic protein,Huntingtin

Homo sapiens

UniProt P42858

State in the Current Structure

Assembly Oligomeric State Construct Mutations and Modifications Ligands, Ions and Associated Components Method and Experimental Conditions Structure Quality
1 Insufficient information Homooligomer Protein × 3 PDB declaration: trimeric(3) Consistent with protein copy count Chain A; UniProt 1–64 Chain B; UniProt 1–64 Chain C; UniProt 1–64 Fragment:Fusion protein, see remark 999,Fusion protein, see remark 999 ZN ZINC ION × 8 CA CALCIUM ION × 5 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;278 K;12% PEG 4000, 200 mM Zn acetate, 200 mM Sodium acetate, 100 mM Sodium Cacodylate pH 6.5-7.4, VAPOR DIFFUSION, HANGING DROP, temperature 278K Resolution 3.70 Å R-free 0.299

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.

30 other PDB entries and 38 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name HD_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 371–430; UniProt 1–64 Author chain B; PDBConstruct 371–430; UniProt 1–64 Author chain C; PDBConstruct 371–430; UniProt 1–64

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 3iou

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3iou
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3iou
Deposition date deposition_date2009-08-14
Structure title titleHuntingtin amino-terminal region with 17 Gln residues - crystal C94
Keywords keywordsHuntingtin, Htt-Ex1, HD, Sugar transport, Transport, Apoptosis, Disease mutation, Nucleus, Phosphoprotein, SIGNALING PROTEIN; SIGNALING PROTEIN
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier37.38
Radius of gyration Rg (electron density) rg_electron36.82
Forward intensity I(0) i0239302000.00
Molecular weight molecular_weight128990.0 kDa
Excluded volume excluded_volume162690 ų
Envelope volume envelope_volume208860 ų
Hydration-shell volume shell_volume47429 ų
Envelope diameter envelope_diameter118.5
Shell Rg shell_rg42.87
Envelope Rg envelope_rg36.13
Shape Rg shape_rg36.75
Total Rg total_rg37.44
Total atoms total_atoms9080
Residues n_residues1191
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 dmax117.2
Rg (real space) rg_real37.29
Rg uncertainty (real space) rg_real_error0.78
I(0) (real space) i0_real2.3930e+08
I(0) uncertainty (real space) i0_real_error4.1350e+06
Rg (reciprocal space) rg_reciprocal37.35
I(0) (reciprocal space) i0_reciprocal239300000.0000
Solution quality estimate total_estimate0.9051
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary44.6
Skewness Skewness skewness0.181
Kurtosis Kurtosis kurtosis-0.681
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha50190000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.964; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 1.000; Smooth: 0.871

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 6 domains

CATH v4.4 (6 domains)

Domain ID domain_id3iouA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id3iouA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id3iouB01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id3iouB02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id3iouC01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II
Domain ID domain_id3iouC02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology190 — D-Maltodextrin-Binding Protein; domain 2
Homologous superfamily homologous superfamily10 — Periplasmic binding protein-like II

8. Citations (1)

9. Files and Curves (10)