2bj6
CRYSTAL STRUCTURE OF A DECAMERIC HNA-RNA HYBRID
| |||||||
| , resolution 2.60Å | |||||||
|---|---|---|---|---|---|---|---|
| Sites: | |||||||
| Ligands: | , , , , , , , , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
OverviewOverview
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.
About this StructureAbout this Structure
2BJ6 is a Single protein structure of sequence from [1]. Full crystallographic information is available from OCA.
ReferenceReference
Reinforced HNA backbone hydration in the crystal structure of a decameric HNA/RNA hybrid., Maier T, Przylas I, Strater N, Herdewijn P, Saenger W, J Am Chem Soc. 2005 Mar 9;127(9):2937-43. PMID:15740130
Page seeded by OCA on Mon Mar 31 02:07:12 2008