2hb3

[[Image:2hb3.gif|left|200px]]

|PDB= 2hb3 |SIZE=350|CAPTION= <scene name='initialview01'>2hb3</scene>, resolution 1.35&Aring;

|SITE=

|LIGAND= <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene>, <scene name='pdbligand=GRL:(3AS,5R,6AR)-HEXAHYDRO-2H-CYCLOPENTA[B]FURAN-5-YL+(2S,3S)-3-HYDROXY-4-(4-(HYDROXYMETHYL)-N-ISOBUTYLPHENYLSULFONAMIDO)-1-PHENYLBUTAN-2-YLCARBAMATE'>GRL</scene> and <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>

|ACTIVITY= [http://en.wikipedia.org/wiki/Chymosin Chymosin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.23.4 3.4.23.4]

|GENE= GAG, POL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11676 Human immunodeficiency virus 1])

 

 

==Overview==

Structure-based design and synthesis of novel HIV protease inhibitors are described. The inhibitors are designed specifically to interact with the backbone of HIV protease active site to combat drug resistance. Inhibitor 3 has exhibited exceedingly potent enzyme inhibitory and antiviral potency. Furthermore, this inhibitor maintains impressive potency against a wide spectrum of HIV including a variety of multi-PI-resistant clinical strains. The inhibitors incorporated a stereochemically defined 5-hexahydrocyclopenta[b]furanyl urethane as the P2-ligand into the (R)-(hydroxyethylamino)sulfonamide isostere. Optically active (3aS,5R,6aR)-5-hydroxy-hexahydrocyclopenta[b]furan was prepared by an enzymatic asymmetrization of meso-diacetate with acetyl cholinesterase, radical cyclization, and Lewis acid-catalyzed anomeric reduction as the key steps. A protein-ligand X-ray crystal structure of inhibitor 3-bound HIV-1 protease (1.35 A resolution) revealed extensive interactions in the HIV protease active site including strong hydrogen bonding interactions with the backbone. This design strategy may lead to novel inhibitors that can combat drug resistance.

 

2HB3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Human_immunodeficiency_virus_1 Human immunodeficiency virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HB3 OCA].

 

Structure-based design of novel HIV-1 protease inhibitors to combat drug resistance., Ghosh AK, Sridhar PR, Leshchenko S, Hussain AK, Li J, Kovalevsky AY, Walters DE, Wedekind JE, Grum-Tokars V, Das D, Koh Y, Maeda K, Gatanaga H, Weber IT, Mitsuya H, J Med Chem. 2006 Aug 24;49(17):5252-61. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16913714 16913714]

[[Category: Single protein]]

[[Category: Kovalevsky, A Y.]]

[[Category: Weber, I T.]]