1a5x: Difference between revisions

Revision as of 09:51, 2 May 2008

ASV INTEGRASE CORE DOMAIN WITH HIV-1 INTEGRASE INHIBITOR Y3

OverviewOverview

The x-ray structures of an inhibitor complex of the catalytic core domain of avian sarcoma virus integrase (ASV IN) were solved at 1.9- to 2.0-A resolution at two pH values, with and without Mn2+ cations. This inhibitor (Y-3), originally identified in a screen for inhibitors of the catalytic activity of HIV type 1 integrase (HIV-1 IN), was found in the present study to be active against ASV IN as well as HIV-1 IN. The Y-3 molecule is located in close proximity to the enzyme active site, interacts with the flexible loop, alters loop conformation, and affects the conformations of active site residues. As crystallized, a Y-3 molecule stacks against its symmetry-related mate. Preincubation of IN with metal cations does not prevent inhibition, and Y-3 binding does not prevent binding of divalent cations to IN. Three compounds chemically related to Y-3 also were investigated, but no binding was observed in the crystals. Our results identify the structural elements of the inhibitor that likely determine its binding properties.

About this StructureAbout this Structure

1A5X is a Single protein structure of sequence from Rous sarcoma virus. Full crystallographic information is available from OCA.

ReferenceReference

Structure of the catalytic domain of avian sarcoma virus integrase with a bound HIV-1 integrase-targeted inhibitor., Lubkowski J, Yang F, Alexandratos J, Wlodawer A, Zhao H, Burke TR Jr, Neamati N, Pommier Y, Merkel G, Skalka AM, Proc Natl Acad Sci U S A. 1998 Apr 28;95(9):4831-6. PMID:9560188 Page seeded by OCA on Fri May 2 09:51:36 2008

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OCA

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 [[Image:1a5x.gif|left|200px]]
- {{Structure
+<!--
-|PDB= 1a5x |SIZE=350|CAPTION= <scene name='initialview01'>1a5x</scene>, resolution 1.9&Aring;
+The line below this paragraph, containing "STRUCTURE_1a5x", creates the "Structure Box" on the page.
-|SITE= <scene name='pdbsite=ACT:Active+Site'>ACT</scene>
+You may change the PDB parameter (which sets the PDB file loaded into the applet)
-|LIGAND= <scene name='pdbligand=Y3:4-ACETYLAMINO-5-HYDROXYNAPHTHALENE-2,7-DISULFONIC+ACID'>Y3</scene>
+or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
-|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA-directed_DNA_polymerase RNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.49 2.7.7.49] </span>
+or leave the SCENE parameter empty for the default display.
-|GENE=
+-->
-|DOMAIN=
+{{STRUCTURE_1a5x|  PDB=1a5x  |  SCENE=  }}
-|RELATEDENTRY=
-|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a5x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a5x OCA], [http://www.ebi.ac.uk/pdbsum/1a5x PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1a5x RCSB]</span>
-}}
 '''ASV INTEGRASE CORE DOMAIN WITH HIV-1 INTEGRASE INHIBITOR Y3'''
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 [[Category: Wlodawer, A.]]
 [[Category: Yang, F.]]
-[[Category: endonuclease]]
+[[Category: Endonuclease]]
-[[Category: hiv-1 integrase inhibitor]]
+[[Category: Hiv-1 integrase inhibitor]]
-[[Category: hydrolase]]
+[[Category: Hydrolase]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May  2 09:51:36 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 18:33:58 2008''