5DQC

Co-crystal of BACE1 with compound 0211

• PDB DOI:  https://doi.org/10.2210/pdb5DQC/pdb

• Classification: Hydrolase/Hydrolase Inhibitor
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-09-14 Released: 2016-02-17 
• Deposition Author(s): Ghosh, A.K., Bhavanam, S.R., Yen, T.-C., Cardenas, E.L., Rao, K.V., Downs, D., Huang, X., Tang, J., Mescar, A.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.47 Å
• R-Value Free: 0.235 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 

Literature

Design of Potent and Highly Selective Inhibitors for Human beta-Secretase 2 (Memapsin 1), a Target for Type 2 Diabetes.

Ghosh, A.K., Reddy, B.S., Yen, Y.C., Cardenas, E., Rao, K.V., Downs, D., Huang, X., Tang, J., Mesecar, A.D.

(2016) Chem Sci 7: 3117-3122

• PubMed: 27347366 
• DOI: https://doi.org/10.1039/C5SC03718B
• Primary Citation of Related Structures:  
  5DQC


• PubMed Abstract: 
  

Design, synthesis and evaluation of very potent and selective β-Secretase 2 (memapsin 1, BACE 2) inhibitors are described. The inhibitors were designed specifically to interact with the S2'-site of β-secretase 2 to provide >170,000-fold selectivity over β-secretase (BACE 1) and >15,000-fold selectivity over cathepsin D. BACE 2 is implicated in Type 2 diabetes. The studies serve as an important guide to selective BACE 2 inhibitors.

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Organizational Affiliation: 

Department of Biological Sciences, Purdue University, West Lafayette, IN 47907 (USA); Department of Chemistry and Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907 (USA); Department of Biochemistry, Purdue University, West Lafayette, IN 47907 (USA).

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 132.37 kDa 
• Atom Count: 9,054 
• Modelled Residue Count: 1,114 
• Deposited Residue Count: 1,170 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-secretase 1	A, B, C	390	Homo sapiens	Mutation(s): 0  Gene Names: BACE1, BACE, KIAA1149 EC: 3.4.23.46
UniProt & NIH Common Fund Data Resources
Find proteins for P56817 (Homo sapiens) Explore P56817  Go to UniProtKB:  P56817
PHAROS:  P56817

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
5E7	D [auth A], E [auth B], F [auth C]	N-[(2S,3R)-3-hydroxy-4-({(2S,3S)-3-hydroxy-1-[(2-methylpropyl)amino]-1-oxobutan-2-yl}amino)-1-phenylbutan-2-yl]-5-[methyl(methylsulfonyl)amino]-N'-[(1R)-1-phenylethyl]benzene-1,3-dicarboxamide C36 H49 N5 O7 S ZIEVAMMZKBNDFB-AAZBAGLXSA-N

Binding Affinity Annotations
ID	Source	Binding Affinity
5E7	Binding MOAD:  5DQC	Ki: 45.6 (nM) from 1 assay(s)

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.47 Å
• R-Value Free: 0.235 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.95	α = 90
b = 103.403	β = 102.66
c = 100.834	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2016-02-17 
Deposition Author(s): Ghosh, A.K., Bhavanam, S.R., Yen, T.-C., Cardenas, E.L., Rao, K.V., Downs, D., Huang, X., Tang, J., Mescar, A.D.

Revision History  

• Version 1.0: 2016-02-17
  Type: Initial release
  
• Version 1.1: 2016-07-13
  Changes: Database references