1sgz

Crystal Structure of Unbound Beta-Secretase Catalytic Domain.

Method: X-RAY DIFFRACTION Dmax: 149.5 Å Quality: GOOD

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

Beta-secretase

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 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;290 K;PEG 8000, Cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 2.00 Å R-free 0.228
2 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain B; UniProt 58–446 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;290 K;PEG 8000, Cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 2.00 Å R-free 0.228
3 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain C; UniProt 58–446 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;290 K;PEG 8000, Cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 2.00 Å R-free 0.228
4 Protein monomer Monomer Protein × 1 PDB declaration: monomeric(1) Consistent with protein copy count Chain D; UniProt 58–446 Not recorded No other associated polymer X-RAY DIFFRACTION X-ray crystallization conditions:VAPOR DIFFUSION, HANGING DROP;pH 6.5;290 K;PEG 8000, Cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K Resolution 2.00 Å R-free 0.228

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 733 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 1–389; UniProt 58–446 Author chain B; PDBConstruct 1–389; UniProt 58–446 Author chain C; PDBConstruct 1–389; UniProt 58–446 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 1sgz

P(r) Distance Distribution P(r) Distribution

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

Entry ID entry_id1sgz
Deposition date deposition_date2004-02-24
Structure title titleCrystal Structure of Unbound Beta-Secretase Catalytic Domain.
Keywords keywords;beta-secretase, memapsin, BACE, aspartic protease, protease flap, drug design, Asp2, Alzheimer's disease, hydrolase ;; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier43.61
Radius of gyration Rg (electron density) rg_electron43.76
Forward intensity I(0) i0437878000.00
Molecular weight molecular_weight173050.0 kDa
Excluded volume excluded_volume217080 ų
Envelope volume envelope_volume295510 ų
Hydration-shell volume shell_volume59520 ų
Envelope diameter envelope_diameter159.1
Shell Rg shell_rg45.26
Envelope Rg envelope_rg42.96
Shape Rg shape_rg43.74
Total Rg total_rg43.89
Total atoms total_atoms12212
Residues n_residues1556
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 dmax149.5
Rg (real space) rg_real43.86
Rg uncertainty (real space) rg_real_error1.55
I(0) (real space) i0_real4.3790e+08
I(0) uncertainty (real space) i0_real_error8.1870e+06
Rg (reciprocal space) rg_reciprocal43.61
I(0) (reciprocal space) i0_reciprocal437800000.0000
Solution quality estimate total_estimate0.8253
Solution quality rating solution_quality GOOD a GOOD solution
P(r) peaks n_peaks1
Primary peak position r_peak_primary58.1
Skewness Skewness skewness0.543
Kurtosis Kurtosis kurtosis0.066
Angular range angular_range— – 0.1800 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha72350000.0000
Real-space data points n_real_points37
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.753; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.951; Smooth: 0.514

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (2)

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1sgza_
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_idd1sgzb_
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_idd1sgzc_
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_idd1sgzd_
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 (8 domains)

Domain ID domain_id1sgzA01
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_id1sgzA02
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_id1sgzB01
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_id1sgzB02
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_id1sgzC01
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_id1sgzC02
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_id1sgzD01
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_id1sgzD02
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)