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J Phys Chem B. 2007 May 24;111(20):5542-4. Epub 2007 May 2.

Natural DNA mixed with trehalose persists in B-form double-stranding even in the dry state.

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  • 1Center for Biological Resources and Informatics, Tokyo Institute of Technology, 4259 Nagatsuda-cho, Midori-ku, Yokohama 226-8501, Japan.

Abstract

Desiccated calf-thymus DNA has been found to persist in the B-form double-stranding when mixed with trehalose. The stabilization effect on natural DNA depends on the trehalose content, and should basically arise from its ability to tightly hydrogen bond to phosphate groups of DNA, which leads to screening of the large phosphate-phosphate repulsion.

PMID:
17472369
[PubMed - indexed for MEDLINE]
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