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1s9b

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{{STRUCTURE_1s9b| PDB=1s9b | SCENE= }}
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'''Crystal Structure Analysis of the B-DNA GAATTCG'''
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===Crystal Structure Analysis of the B-DNA GAATTCG===
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==Overview==
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DNA oligonucleotides can be used in order to assemble highly structured materials. Oligonucleotides with sticky ends can form long linear structures, whereas branching is required to form two- and three-dimensional nanostructures. In this paper, we show that when Ni(2+) is attached to the N7 atom of guanine, it can also act as a branching point. Thus, we have found that the heptanucleotide d(GAATTCG) can assemble into long linear duplex structures, which cross in space to generate a cubic structure. The three-dimensional arrays are stabilized by phosphate-Ni(2+)-guanine interactions. For the first time, the crystallization of a B form DNA oligonucleotide in a cubic system is reported, space group I23. Large solvent cavities are found among the DNA duplexes.
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The line below this paragraph, {{ABSTRACT_PUBMED_15212528}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15212528 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15212528}}
==About this Structure==
==About this Structure==
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[[Category: Double helix]]
[[Category: Double helix]]
[[Category: Nickel]]
[[Category: Nickel]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 08:26:36 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 18:41:44 2008''

Revision as of 15:41, 28 July 2008

Image:1s9b.gif

Template:STRUCTURE 1s9b

Crystal Structure Analysis of the B-DNA GAATTCG

Template:ABSTRACT PUBMED 15212528

About this Structure

Full crystallographic information is available from OCA.

Reference

A cubic arrangement of DNA double helices based on nickel-guanine interactions., Valls N, Uson I, Gouyette C, Subirana JA, J Am Chem Soc. 2004 Jun 30;126(25):7812-6. PMID:15212528

Page seeded by OCA on Mon Jul 28 18:41:44 2008

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