166d: Difference between revisions

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[[Image:166d.~~jpg~~|left|200px]]

[[Image:166d.png|left|200px]]

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~~'''~~DRUG-DNA MINOR GROOVE RECOGNITION: CRYSTAL STRUCTURE OF GAMMA-OXAPENTAMIDINE COMPLEXED WITH D(CGCGAATTCGCG)2~~'''~~

===DRUG-DNA MINOR GROOVE RECOGNITION: CRYSTAL STRUCTURE OF GAMMA-OXAPENTAMIDINE COMPLEXED WITH D(CGCGAATTCGCG)2===

~~==Overview==~~

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The ~~crystal structure of~~ the ~~complex of gamma-oxapentamidine and~~ the ~~DNA dodecamer d~~(CGCGAATTCGCG)2 has been determined to a resolution of 0.22 nm and an R factor of 18.9%. The gamma-oxapentamidine ligand interacts with the dodecamer by classic minor groove binding via interactions within the A+T-rich region of the minor groove. A chain of solvent molecules lies along the mouth of the minor groove on ~~the outside of the bound ligand~~. ~~The structural details of the complex are discussed and compared with the closely analogous complex with pentamidine bound to the same dodecamer [Edwards, K~~. ~~J., Jenkins, T. C. & Neidle, S. (1992~~) ~~Biochemistry 31~~, ~~7104-7109]. The amidinium groups of~~ the ~~ligand do not hydrogen bond to bases, but are in close contact with O4' sugar ring atoms. This in part explains the reduced DNA binding affinity of this ligand compared to pentamidine~~.

The line below this paragraph, {{ABSTRACT_PUBMED_7813486}}, adds the Publication Abstract to the page

(as it appears on PubMed at http://www.pubmed.gov), where 7813486 is the PubMed ID number.

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==About this Structure==

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[[Category: Complexed with drug]]

[[Category: Double helix]]

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on ~~Tue Apr 8 07~~:59:37 2008''

''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 15:34:02 2008''

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-[[Image:166d.jpg|left|200px]]
+{{Seed}}
+[[Image:166d.png|left|200px]]
 <!--
@@ Line 9: / Line 10: @@
 {{STRUCTURE_166d|  PDB=166d  |  SCENE=  }}
-'''DRUG-DNA MINOR GROOVE RECOGNITION: CRYSTAL STRUCTURE OF GAMMA-OXAPENTAMIDINE COMPLEXED WITH D(CGCGAATTCGCG)2'''
+===DRUG-DNA MINOR GROOVE RECOGNITION: CRYSTAL STRUCTURE OF GAMMA-OXAPENTAMIDINE COMPLEXED WITH D(CGCGAATTCGCG)2===
-==Overview==
+<!--
-The crystal structure of the complex of gamma-oxapentamidine and the DNA dodecamer d(CGCGAATTCGCG)2 has been determined to a resolution of 0.22 nm and an R factor of 18.9%. The gamma-oxapentamidine ligand interacts with the dodecamer by classic minor groove binding via interactions within the A+T-rich region of the minor groove. A chain of solvent molecules lies along the mouth of the minor groove on the outside of the bound ligand. The structural details of the complex are discussed and compared with the closely analogous complex with pentamidine bound to the same dodecamer [Edwards, K. J., Jenkins, T. C. &amp; Neidle, S. (1992) Biochemistry 31, 7104-7109]. The amidinium groups of the ligand do not hydrogen bond to bases, but are in close contact with O4' sugar ring atoms. This in part explains the reduced DNA binding affinity of this ligand compared to pentamidine.
+The line below this paragraph, {{ABSTRACT_PUBMED_7813486}}, adds the Publication Abstract to the page
+(as it appears on PubMed at http://www.pubmed.gov), where 7813486 is the PubMed ID number.
+-->
+{{ABSTRACT_PUBMED_7813486}}
 ==About this Structure==
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 [[Category: Complexed with drug]]
 [[Category: Double helix]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Apr  8 07:59:37 2008''
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 15:34:02 2008''