3qbh

Structure based design, synthesis and SAR of cyclic hydroxyethylamine (HEA) BACE-1 inhibitors

Method: X-RAY DIFFRACTION Dmax: 135.1 Å Quality: REASONABLE

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 48–447 Fragment:UNP residues 48-447 QBH (4S)-4-(2-hydroxy-5-{[(3S,4S,5R)-4-hydroxy-1,1-dioxido-5-{[3-(propan-2-yl)benzyl]amino}tetrahydro-2H-thiopyran-3-yl]methyl}benzyl)-3-propyl-1,3-oxazolidin-2-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5;292 K;1.0M Ammonium phosphate, 0.1M sodium citrate pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K Resolution 2.24 Å R-free 0.219
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 48–447 Fragment:UNP residues 48-447 QBH (4S)-4-(2-hydroxy-5-{[(3S,4S,5R)-4-hydroxy-1,1-dioxido-5-{[3-(propan-2-yl)benzyl]amino}tetrahydro-2H-thiopyran-3-yl]methyl}benzyl)-3-propyl-1,3-oxazolidin-2-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5;292 K;1.0M Ammonium phosphate, 0.1M sodium citrate pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K Resolution 2.24 Å R-free 0.219
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 48–447 Fragment:UNP residues 48-447 QBH (4S)-4-(2-hydroxy-5-{[(3S,4S,5R)-4-hydroxy-1,1-dioxido-5-{[3-(propan-2-yl)benzyl]amino}tetrahydro-2H-thiopyran-3-yl]methyl}benzyl)-3-propyl-1,3-oxazolidin-2-one × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 5;292 K;1.0M Ammonium phosphate, 0.1M sodium citrate pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K Resolution 2.24 Å R-free 0.219

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 734 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 3–402; UniProt 48–447 Author chain B; PDBConstruct 3–402; UniProt 48–447 Author chain C; PDBConstruct 3–402; UniProt 48–447

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 3qbh

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id3qbh
Deposition date deposition_date2011-01-13
Structure title titleStructure based design, synthesis and SAR of cyclic hydroxyethylamine (HEA) BACE-1 inhibitors
Keywords keywordsEnzyme inhibitor complex, HYDROLASE, HYDROLASE-HYDROLASE Inhibitor complex; HYDROLASE/HYDROLASE Inhibitor
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier39.41
Radius of gyration Rg (electron density) rg_electron39.43
Forward intensity I(0) i0236688000.00
Molecular weight molecular_weight127290.0 kDa
Excluded volume excluded_volume159920 ų
Envelope volume envelope_volume203330 ų
Hydration-shell volume shell_volume45466 ų
Envelope diameter envelope_diameter142.4
Shell Rg shell_rg42.68
Envelope Rg envelope_rg38.87
Shape Rg shape_rg39.42
Total Rg total_rg39.64
Total atoms total_atoms8981
Residues n_residues1126
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 dmax135.1
Rg (real space) rg_real39.77
Rg uncertainty (real space) rg_real_error1.13
I(0) (real space) i0_real2.3670e+08
I(0) uncertainty (real space) i0_real_error3.9350e+06
Rg (reciprocal space) rg_reciprocal39.55
I(0) (reciprocal space) i0_reciprocal236600000.0000
Solution quality estimate total_estimate0.6104
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary37.2
Skewness Skewness skewness0.478
Kurtosis Kurtosis kurtosis-0.429
Angular range angular_range— – 0.2000 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha52820000.0000
Real-space data points n_real_points41
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.789; Stabil: 1.000; Sysdev: 0.013; Positv: 1.000; Valcen: 0.795; Smooth: 0.728

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 9 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd3qbha_
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_idd3qbhb_
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_idd3qbhc_
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

CATH v4.4 (6 domains)

Domain ID domain_id3qbhA01
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_id3qbhA02
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_id3qbhB01
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_id3qbhB02
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_id3qbhC01
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_id3qbhC02
Class class2 — Mainly Beta
Architecture architecture40 — Beta Barrel
Topology topology70 — Cathepsin D, subunit A; domain 1
Homologous superfamily homologous superfamily10 — Acid Proteases

8. Citations (4)

9. Files and Curves (10)