1d64: Difference between revisions

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[[Image:1d64.gif|left|200px]]<br /><applet load="1d64" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1d64, resolution 2.100&Aring;" />
'''CRYSTAL STRUCTURE OF A PENTAMIDINE-OLIGONUCLEOTIDE COMPLEX: IMPLICATIONS FOR DNA-BINDING PROPERTIES'''<br />


==Overview==
==CRYSTAL STRUCTURE OF A PENTAMIDINE-OLIGONUCLEOTIDE COMPLEX: IMPLICATIONS FOR DNA-BINDING PROPERTIES==
The crystal structure of the complex formed between the dodecanucleotide d(CGCGAATTCGCG)2 and the drug pentamidine, which is active against the Pneumocystis carinii pathogen in AIDS patients, has been determined to a resolution of 2.1 A and an R-factor of 19.4%. Analysis of the structure has shown the drug to be bound in the 5'-AATT minor groove region of the duplex, with the amidinium groups H-bonded to adenine N3 atoms in an interstrand manner. The drug molecule adopts an extended conformation, and the immediate binding site spans four base pairs. Structural details of the drug-DNA interactions are discussed, and comparison is made with the dodecamer complex of the structurally similar berenil ligand.
<StructureSection load='1d64' size='340' side='right'caption='[[1d64]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[1d64]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D64 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D64 FirstGlance]. <br>
1D64 is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with <scene name='pdbligand=PNT:'>PNT</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1D64 OCA].  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PNT:1,5-BIS(4-AMIDINOPHENOXY)PENTANE'>PNT</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1d64 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d64 OCA], [https://pdbe.org/1d64 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d64 RCSB], [https://www.ebi.ac.uk/pdbsum/1d64 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d64 ProSAT]</span></td></tr>
Crystal structure of a pentamidine-oligonucleotide complex: implications for DNA-binding properties., Edwards KJ, Jenkins TC, Neidle S, Biochemistry. 1992 Aug 11;31(31):7104-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=1643044 1643044]
</table>
[[Category: Protein complex]]
__TOC__
[[Category: Edwards, K J.]]
</StructureSection>
[[Category: Jenkins, T C.]]
[[Category: Large Structures]]
[[Category: Neidle, S.]]
[[Category: Edwards KJ]]
[[Category: PNT]]
[[Category: Jenkins TC]]
[[Category: b-dna]]
[[Category: Neidle S]]
[[Category: complexed with drug]]
[[Category: double helix]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 12:13:23 2008''