Crystal Structure of a decameric HNA-RNA hybridCrystal Structure of a decameric HNA-RNA hybrid

Structural highlights

2bj6 is a 8 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.6Å
Ligands:, , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Publication Abstract from PubMed

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.

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[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Maier T, Przylas I, Strater N, Herdewijn P, Saenger W. Reinforced HNA backbone hydration in the crystal structure of a decameric HNA/RNA hybrid. J Am Chem Soc. 2005 Mar 9;127(9):2937-43. PMID:15740130 doi:10.1021/ja045843v

2bj6, resolution 2.60Å

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA