4b1e

New Aminoimidazoles as BACE-1 Inhibitors: From Rational Design to Ab- lowering in Brain

Method: X-RAY DIFFRACTION Dmax: 69.5 Å Quality: EXCELLENT

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

BETA-SECRETASE 1

HOMO SAPIENS

UniProt P56817

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 58–61 Chain A; UniProt 62–445 Fragment:RESIDUES 58-445 6T6 (2R)-2-methyl-5-phenyl-2-(3-pyridin-3-ylphenyl)-2,3-dihydro-1H-imidazol-4-amine × 1 X-RAY DIFFRACTION X-ray crystallization conditions:pH 7;pH 7 Resolution 1.95 Å R-free 0.242

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.

430 other PDB entries and 736 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence
UniProt name BACE1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–4; UniProt 58–61 Author chain A; PDBConstruct 5–388; UniProt 62–445

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 4b1e

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 4b1e
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2. Structure Basics 2. Structure Basics

Entry ID entry_id4b1e
Deposition date deposition_date2012-07-10
Structure title titleNew Aminoimidazoles as BACE-1 Inhibitors: From Rational Design to Ab- lowering in Brain
Keywords keywordsHYDROLASE, STRUCTURE-BASED DRUG DESIGN; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.07
Radius of gyration Rg (electron density) rg_electron20.85
Forward intensity I(0) i029263000.00
Molecular weight molecular_weight42119.0 kDa
Excluded volume excluded_volume52896 ų
Envelope volume envelope_volume61723 ų
Hydration-shell volume shell_volume24310 ų
Envelope diameter envelope_diameter71.3
Shell Rg shell_rg27.92
Envelope Rg envelope_rg21.08
Shape Rg shape_rg20.83
Total Rg total_rg21.80
Total atoms total_atoms2974
Residues n_residues375
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 dmax69.5
Rg (real space) rg_real21.95
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real2.9260e+07
I(0) uncertainty (real space) i0_real_error3.7890e+05
Rg (reciprocal space) rg_reciprocal21.97
I(0) (reciprocal space) i0_reciprocal29260000.0000
Solution quality estimate total_estimate0.9003
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary25.9
Skewness Skewness skewness0.208
Kurtosis Kurtosis kurtosis-0.422
Angular range angular_range— – 0.3600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha5668000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.902; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.998; Smooth: 0.996

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd4b1ea1
Class classb — All beta proteins
Fold Fold foldb.50 — Acid proteases
Superfamily Superfamily superfamilyb.50.1 — Acid proteases
Family Family familyb.50.1.2 — Pepsin-like
Domain ID domain_idd4b1ea2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id4b1eA01
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases
Domain ID domain_id4b1eA02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases

8. Citations (1)

9. Files and Curves (10)