Title: Reinforced HNA backbone hydration in the crystal structure of a decameric HNA/RNA hybrid
Authors: Maier, T ×
Przylas, I
Strater, N
Herdewijn, Piet
Saenger, Wolfram #
Issue Date: 2005
Series Title: Journal of the American Chemical Society vol:127 issue:9 pages:2937-2943
Abstract: The crystal structure of a decameric HNA/RNA (HNA = 2',3'-dideoxy-1',5'-anhydro-d-arabinohexitol nucleic acid) hybrid with the RNA sequence 5'-GGCAUUACGG-3' is the first crystal structure of a hybrid duplex between a naturally occurring nucleic acid and a strand, which is fully modified to contain a six-membered ring instead of ribose. The presence of four duplex helices in the asymmetric unit allows for a detailed discussion of hydration, which revealed a tighter spinelike backbone hydration for the HNA- than for the RNA-strands. The reinforced backbone hydration is suggested to contribute significantly to the exceptional stability of HNA-containing duplexes and might be one of the causes for the evolutionary preference for ribose-derived nucleic acids.
ISSN: 0002-7863
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Medicinal Chemistry (Rega Institute)
× corresponding author
# (joint) last author

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