1xs7

Crystal Structure of a cycloamide-urethane-derived novel inhibitor bound to human brain memapsin 2 (beta-secretase).

Method: X-RAY DIFFRACTION Dmax: 68.3 Å Quality: GOOD

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 D; UniProt 58–446 Not recorded MMI N-[(4S,5S,7R)-8-({(S)-1-[(BENZYLAMINO)OXOMETHYL]-2-METHYLPROPYL}AMINO)-5-HYDROXY-2,7-DIMETHYL-8-OXO-OCT-4-YL]-(4S,7S)-4 -ISOPROPYL-2,5,9-TRIOXO-1-OXA-3,6,10-TRIAZACYCLOHEXADECANE-7-CARBOXAMIDE × 1 X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.2;293 K;14% PEG 8000, 0.1M CACODYLATE, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 293K Resolution 2.80 Å

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 D; PDBConstruct 1–389; 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 1xs7

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1xs7
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1xs7
Deposition date deposition_date2004-10-18
Structure title titleCrystal Structure of a cycloamide-urethane-derived novel inhibitor bound to human brain memapsin 2 (beta-secretase).
Keywords keywords;beta secretase, memapsin2, BACE, ASP2, Aspartic Protease, acid protease, Alzheimer's disease, drug design, HYDROLASE ;; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier21.93
Radius of gyration Rg (electron density) rg_electron20.69
Forward intensity I(0) i031498000.00
Molecular weight molecular_weight43994.0 kDa
Excluded volume excluded_volume55303 ų
Envelope volume envelope_volume62731 ų
Hydration-shell volume shell_volume24747 ų
Envelope diameter envelope_diameter69.9
Shell Rg shell_rg27.88
Envelope Rg envelope_rg20.96
Shape Rg shape_rg20.68
Total Rg total_rg21.60
Total atoms total_atoms3105
Residues n_residues389
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 dmax68.3
Rg (real space) rg_real21.80
Rg uncertainty (real space) rg_real_error0.33
I(0) (real space) i0_real3.1500e+07
I(0) uncertainty (real space) i0_real_error3.9030e+05
Rg (reciprocal space) rg_reciprocal21.82
I(0) (reciprocal space) i0_reciprocal31500000.0000
Solution quality estimate total_estimate0.8985
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.5
Skewness Skewness skewness0.200
Kurtosis Kurtosis kurtosis-0.415
Angular range angular_range— – 0.3600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha6159000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.907; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.960

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1xs7d_
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 (2 domains)

Domain ID domain_id1xs7D01
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_id1xs7D02
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)