The molecule r(GCG)d(TATACGC) is self-complementary and forms two DNA--RNA hybrid segments surrounding a central region of double helical DNA; its molecular structure has been solved by X-ray analysis. All three parts of the molecule adopt a conformation which is close to that seen in the 11-fold RNA double helix. The conformation of the ribonucleotides is partly determined by water molecules bridging between the ribose O2' hydroxyl group and cytosine O2. The hybrid-DNA duplex junction contains no structural discontinuities. However, the central DNA TATA sequence has some structural irregularities.
Molecular structure of r(GCG)d(TATACGC): a DNA--RNA hybrid helix joined to double helical DNA.,Wang AH, Fujii S, van Boom JH, van der Marel GA, van Boeckel SA, Rich A Nature. 1982 Oct 14;299(5884):601-4. PMID:6181416[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Wang AH, Fujii S, van Boom JH, van der Marel GA, van Boeckel SA, Rich A. Molecular structure of r(GCG)d(TATACGC): a DNA--RNA hybrid helix joined to double helical DNA. Nature. 1982 Oct 14;299(5884):601-4. PMID:6181416
