| Literature DB >> 8448147 |
K Y Wang1, S McCurdy, R G Shea, S Swaminathan, P H Bolton.
Abstract
The investigation of the three-dimensional structure of the DNA aptamer d(G1G2T3-T4G5G6T7G8T9G10G11T12T13G14G15) which binds to and inhibits thrombin has been carried out by NMR methods. This DNA exhibits a number of long-range NOEs between residues which are not adjacent in sequence, which allowed the determination of the novel tertiary structure adopted. This DNA adopts a highly compact, highly symmetrical structure which consists of two tetrads of guanosine base pairs and three loops. The residues of the tetrads alternate anti-syn-anti-syn. This novel structural motif for DNA may also be relevant to the structure of telomere DNA.Entities:
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Year: 1993 PMID: 8448147 DOI: 10.1021/bi00059a003
Source DB: PubMed Journal: Biochemistry ISSN: 0006-2960 Impact factor: 3.162