ISDA

Deposition Date 2014-09-03

Release Date 2014-11-05

Last Version Date 2024-10-16

Entry Detail

PDB ID:

4R91

Keywords:

Hydrolase/Hydrolase inhibitor

Title:

BACE-1 in complex with (R)-4-(2-cyclohexylethyl)-4-(((1S,3R)-3-(cyclopentylamino)cyclohexyl)methyl)-1-methyl-5-oxoimidazolidin-2-iminium

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.58 Å

R-Value Free:

0.21

R-Value Work:

0.19

R-Value Observed:

0.19

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Beta-secretase 1
Gene (Uniprot):BACE1
Chain IDs:A, B
Chain Length:414
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P56817 Pfam ID:PF00026 EC:3.4.23.46

Ligand Molecules

3KT

TLA

Primary Citation

Discovery of potent iminoheterocycle BACE1 inhibitors.

Caldwell, J.P, Mazzola, R.D, Durkin, J, Chen, J, Chen, X, Favreau, L, Kennedy, M, Kuvelkar, R, Lee, J, McHugh, N, McKittrick, B, Orth, P, Stamford, A, Strickland, C, Voigt, J, Wang, L, Zhang, L, Zhang, Q, Zhu, Z.Show

Bioorg.Med.Chem.Lett. 24 5455 5459 (2014)

PMID: 25455483 DOI: 10.1016/j.bmcl.2014.10.006

Abstact

The synthesis of a series of iminoheterocycles and their structure-activity relationships (SAR) as inhibitors of the aspartyl protease BACE1 will be detailed. An effort to access the S3 subsite directly from the S1 subsite initially yielded compounds with sub-micromolar potency. A subset of compounds from this effort unexpectedly occupied a different binding site and displayed excellent BACE1 affinities. Select compounds from this subset acutely lowered Aβ40 levels upon subcutaneous and oral administration to rats.

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Protein

Chemical

Disease

Primary Citation of related structures