2p4j
From Proteopedia
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|PDB= 2p4j |SIZE=350|CAPTION= <scene name='initialview01'>2p4j</scene>, resolution 2.500Å | |PDB= 2p4j |SIZE=350|CAPTION= <scene name='initialview01'>2p4j</scene>, resolution 2.500Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=23I:N-[(1S,2S,4R)-2-HYDROXY-1-ISOBUTYL-5-({(1S)-1-[(ISOPROPYLAMINO)CARBONYL]-2-METHYLPROPYL}AMINO)-4-METHYL-5-OXOPENTYL]-5-[METHYL(METHYLSULFONYL)AMINO]-N | + | |LIGAND= <scene name='pdbligand=23I:N-[(1S,2S,4R)-2-HYDROXY-1-ISOBUTYL-5-({(1S)-1-[(ISOPROPYLAMINO)CARBONYL]-2-METHYLPROPYL}AMINO)-4-METHYL-5-OXOPENTYL]-5-[METHYL(METHYLSULFONYL)AMINO]-N'-[(1R)-1-PHENYLETHYL]ISOPHTHALAMIDE'>23I</scene> |
|ACTIVITY= [http://en.wikipedia.org/wiki/Memapsin_2 Memapsin 2], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.46 3.4.23.46] | |ACTIVITY= [http://en.wikipedia.org/wiki/Memapsin_2 Memapsin 2], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.46 3.4.23.46] | ||
|GENE= BACE1, BACE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | |GENE= BACE1, BACE ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]) | ||
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[[Category: structure based drug design]] | [[Category: structure based drug design]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 15:36:53 2008'' |
Revision as of 13:36, 23 March 2008
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| , resolution 2.500Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Gene: | BACE1, BACE (Homo sapiens) | ||||||
| Activity: | Memapsin 2, with EC number 3.4.23.46 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of beta-secretase bond to an inhibitor with Isophthalamide Derivatives at P2-P3
Overview
Structure-based design and synthesis of a number of potent and selective memapsin 2 inhibitors are described. These inhibitors were designed based upon the X-ray structure of memapsin 2-bound inhibitor 3 that incorporates methylsulfonyl alanine as the P2-ligand and a substituted pyrazole as the P3-ligand. Of particular importance, we examined the ability of the substituted isophthalic acid amide derivative to mimic the key interactions in the S2-S3 regions of the enzyme active sites of 3-bound memapsin 2. We investigated various substituted phenylethyl, alpha-methylbenzyl, and oxazolylmethyl groups as the P3-ligands. A number of inhibitors exhibited very potent inhibitory activity against mempasin 2 and good selectivity against memapsin 1. Inhibitor 5d has shown low nanomolar enzyme inhibitory potency (Ki=1.1 nM) and very good cellular inhibitory activity (IC50=39 nM). Furthermore, in a preliminary study, inhibitor 5d has shown 30% reduction of Abeta40 production in transgenic mice after a single intraperitoneal administration (8 mg/kg). A protein-ligand X-ray crystal structure of 5d-bound memapsin 2 provided vital molecular insight that can serve as an important guide to further design of novel inhibitors.
About this Structure
2P4J is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Design, synthesis, and X-ray structure of potent memapsin 2 (beta-secretase) inhibitors with isophthalamide derivatives as the P2-P3-ligands., Ghosh AK, Kumaragurubaran N, Hong L, Kulkarni SS, Xu X, Chang W, Weerasena V, Turner R, Koelsch G, Bilcer G, Tang J, J Med Chem. 2007 May 17;50(10):2399-407. Epub 2007 Apr 14. PMID:17432843
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