3u6a

Rational Design and Synthesis of Aminopiperazinones as Beta Secretase (BACE) Inhibitors

Method: X-RAY DIFFRACTION Dmax: 117.3 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 58–446 Fragment:UNP residues 58-446 18P N-{3-[(2R)-6-amino-2,4-dimethyl-3-oxo-2,3,4,5-tetrahydropyrazin-2-yl]phenyl}-5-chloropyridine-2-carboxamide × 1 SO4 SULFATE ION × 3 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;100mM Sodium Citrate pH 5.4-6.0, 200mM NH4I, 16% PEG5000mme, VAPOR DIFFUSION, temperature 293K Resolution 2.20 Å R-free 0.237
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 58–446 Fragment:UNP residues 58-446 18P N-{3-[(2R)-6-amino-2,4-dimethyl-3-oxo-2,3,4,5-tetrahydropyrazin-2-yl]phenyl}-5-chloropyridine-2-carboxamide × 1 SO4 SULFATE ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;100mM Sodium Citrate pH 5.4-6.0, 200mM NH4I, 16% PEG5000mme, VAPOR DIFFUSION, temperature 293K Resolution 2.20 Å R-free 0.237
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 58–446 Fragment:UNP residues 58-446 18P N-{3-[(2R)-6-amino-2,4-dimethyl-3-oxo-2,3,4,5-tetrahydropyrazin-2-yl]phenyl}-5-chloropyridine-2-carboxamide × 1 SO4 SULFATE ION × 2 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION;pH 8;293 K;100mM Sodium Citrate pH 5.4-6.0, 200mM NH4I, 16% PEG5000mme, VAPOR DIFFUSION, temperature 293K Resolution 2.20 Å R-free 0.237

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 2–390; UniProt 58–446 Author chain B; PDBConstruct 2–390; UniProt 58–446 Author chain C; PDBConstruct 2–390; UniProt 58–446

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 3u6a

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 3u6a
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2. Structure Basics 2. Structure Basics

Entry ID entry_id3u6a
Deposition date deposition_date2011-10-12
Structure title titleRational Design and Synthesis of Aminopiperazinones as Beta Secretase (BACE) Inhibitors
Keywords keywordsbeta-site APP cleaving enzyme 1, 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_guinier37.26
Radius of gyration Rg (electron density) rg_electron36.77
Forward intensity I(0) i0251067000.00
Molecular weight molecular_weight128860.0 kDa
Excluded volume excluded_volume161060 ų
Envelope volume envelope_volume208400 ų
Hydration-shell volume shell_volume46961 ų
Envelope diameter envelope_diameter122.5
Shell Rg shell_rg43.29
Envelope Rg envelope_rg36.34
Shape Rg shape_rg36.76
Total Rg total_rg37.21
Total atoms total_atoms9078
Residues n_residues1144
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 dmax117.3
Rg (real space) rg_real37.16
Rg uncertainty (real space) rg_real_error0.82
I(0) (real space) i0_real2.5110e+08
I(0) uncertainty (real space) i0_real_error4.5990e+06
Rg (reciprocal space) rg_reciprocal37.23
I(0) (reciprocal space) i0_reciprocal251100000.0000
Solution quality estimate total_estimate0.6827
Solution quality rating solution_quality REASONABLE a REASONABLE solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary44.7
Skewness Skewness skewness0.140
Kurtosis Kurtosis kurtosis-0.720
Angular range angular_range— – 0.2100 −1
Current regularization parameter α current_alpha0.0001
Highest regularization parameter α highest_alpha43600000.0000
Real-space data points n_real_points43
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.956; Stabil: 1.000; Sysdev: 0.020; Positv: 1.000; Valcen: 0.999; Smooth: 0.946

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (4)

7. Fold Classification (SCOP + CATH) 10 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd3u6aa_
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_idd3u6ab_
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_idd3u6ac1
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_idd3u6ac2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (6 domains)

Domain ID domain_id3u6aA01
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_id3u6aA02
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_id3u6aB01
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_id3u6aB02
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_id3u6aC01
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_id3u6aC02
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)