1w50

Apo Structure of BACE (Beta Secretase)

Method: X-RAY DIFFRACTION Dmax: 68.9 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 43–453 Fragment:ACTIVE PROTEASE DOMAIN, RESIDUES 43-453 Mutation:YES IOD IODIDE ION × 4 X-RAY DIFFRACTION X-ray crystallization conditions:pH 6.6;pH 6.60 Resolution 1.75 Å R-free 0.283

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 BAE1_HUMAN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–411; UniProt 43–453

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 1w50

P(r) Distance Distribution P(r) Distribution

P(r) distribution for 1w50
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2. Structure Basics 2. Structure Basics

Entry ID entry_id1w50
Deposition date deposition_date2004-08-04
Structure title titleApo Structure of BACE (Beta Secretase)
Keywords keywords;ALTERNATIVE SPLICING, ALZHEIMER'S DISEASE, ASPARTIC PROTEASE, ASPARTYL PROTEASE, BASE, BETA-SECRETASE, GLYCOPROTEIN, HYDROLASE, MEMAPSIN 2, TRANSMEMBRANE, ZYMOGEN ;; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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

Radius of gyration Rg (Guinier) rg_guinier22.21
Radius of gyration Rg (electron density) rg_electron20.97
Forward intensity I(0) i031256600.00
Molecular weight molecular_weight42540.0 kDa
Excluded volume excluded_volume52861 ų
Envelope volume envelope_volume62153 ų
Hydration-shell volume shell_volume24392 ų
Envelope diameter envelope_diameter70.1
Shell Rg shell_rg27.99
Envelope Rg envelope_rg21.09
Shape Rg shape_rg20.94
Total Rg total_rg21.93
Total atoms total_atoms2970
Residues n_residues377
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 dmax68.9
Rg (real space) rg_real22.07
Rg uncertainty (real space) rg_real_error0.34
I(0) (real space) i0_real3.1260e+07
I(0) uncertainty (real space) i0_real_error4.0370e+05
Rg (reciprocal space) rg_reciprocal22.10
I(0) (reciprocal space) i0_reciprocal31260000.0000
Solution quality estimate total_estimate0.9028
Solution quality rating solution_quality EXCELLENT a EXCELLENT solution
P(r) peaks n_peaks2
Primary peak position r_peak_primary26.7
Skewness Skewness skewness0.171
Kurtosis Kurtosis kurtosis-0.455
Angular range angular_range— – 0.3600 −1
Current regularization parameter α current_alpha0.0000
Highest regularization parameter α highest_alpha4756000.0000
Real-space data points n_real_points68
GNOM version gnom_version4.1.3
Quality Criteria quality_criteria AN1: 0.000; Oscil: 0.921; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.995; Smooth: 0.973

5. Crystallography and Experiment 5. Crystallography & Experiment

6. Entities and Polymers Entities & Polymers (3)

7. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1w50a_
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_id1w50A01
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_id1w50A02
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)