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Iterative Optimization of DNA Duplexes for Crystallization of SeqA-DNA Complexes
Published on: November 1, 2012
Bifacial nucleoside as a surrogate for both T and A in duplex DNA
1Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, USA.
None:
A new functional bifacial nucleoside derived from 7-aminopyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione, a Janus-type nucleobase, has been synthesized and incorporated into DNA oligonucleotides. The nucleobase, having self-complementary H-bonding faces, mimics both T and A and engages in the corresponding Watson-Crick-like base pairs, forming stable duplexes.
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