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New page: left|200px<br /><applet load="1jtl" size="450" color="white" frame="true" align="right" spinBox="true" caption="1jtl, resolution 1.85Å" /> '''The crystal structur...
 
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[[Image:1jtl.gif|left|200px]]<br /><applet load="1jtl" size="450" color="white" frame="true" align="right" spinBox="true"
caption="1jtl, resolution 1.85&Aring;" />
'''The crystal structure of d(GGCCAATTGG) Complexed with Distamycin'''<br />


==Overview==
==The crystal structure of d(GGCCAATTGG) Complexed with Distamycin==
Single-crystal X-ray structure determinations of the complex between the, minor-groove binder distamycin and d(GGCCAATTGG) reveal two 1 : 1 binding, modes which differ in the orientation of the drug molecule in the minor, groove. The two crystals were grown from different crystallization, conditions and found to diffract to 2.38 and 1.85 A, respectively. The, structures were refined to completion using SHELXL-93, resulting in a, residual R factor of 20.30% for the 2.38-A resolution structure (including, 46 water molecules) and 19.74% for the 1.85-A resolution structure, (including 74 water molecules). In both orientations, bifurcated hydrogen, bonds are formed between the amide nitrogen atoms of the drug and AT base, pairs. With a binding site of at least five base pairs, close contacts, between the terminal distamycin atoms and guanine amino groups are, inevitable. The detailed nature of several of these interactions was, further investigated by ab initio quantum chemical methods.
<StructureSection load='1jtl' size='340' side='right'caption='[[1jtl]], [[Resolution|resolution]] 1.85&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[1jtl]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JTL OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JTL FirstGlance]. <br>
1JTL is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/ ] with DMY as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1JTL 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]] 1.85&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DMY:DISTAMYCIN+A'>DMY</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=1jtl FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jtl OCA], [https://pdbe.org/1jtl PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jtl RCSB], [https://www.ebi.ac.uk/pdbsum/1jtl PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jtl ProSAT]</span></td></tr>
Two 1 : 1 binding modes for distamycin in the minor groove of d(GGCCAATTGG)., Uytterhoeven K, Sponer J, Van Meervelt L, Eur J Biochem. 2002 Jun;269(12):2868-77. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=12071949 12071949]
</table>
[[Category: Protein complex]]
__TOC__
[[Category: Meervelt, L.Van.]]
</StructureSection>
[[Category: Uytterhoeven, K.]]
[[Category: Large Structures]]
[[Category: DMY]]
[[Category: Uytterhoeven K]]
[[Category: b-dna double helix]]
[[Category: Van Meervelt L]]
[[Category: base triplets]]
[[Category: distamycin]]
[[Category: drug]]
[[Category: minor groove binding]]
 
''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Sun Nov 25 00:13:47 2007''

Latest revision as of 07:42, 7 February 2024

The crystal structure of d(GGCCAATTGG) Complexed with Distamycin

1jtl, resolution 1.85Å

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