Structure of the A-DNA octamer d(GGCATGCC).
Nunn, C.M., Neidle, S.(1997) Acta Crystallogr D Biol Crystallogr 53: 269-273
- PubMed: 15299929 
- DOI: https://doi.org/10.1107/S0907444996014795
- Primary Citation of Related Structures:  
281D - PubMed Abstract: 
The crystal structure of the self-complementary DNA octamer d(GGCATGCC) has been determined to a resolution of 2.38 A and R factor of 17.1%. The structure is an A-DNA octamer duplex with Watson-Crick base pairing along its length. This sequence extends the investigation of octamer duplexes of the type d(GGX(4)CC) which assume P6(1) packing within the crystallographic unit cell. The A-DNA duplex is non-linear with a helix axis curvature of 7 degrees and bending towards the DNA minor groove. In view of the biological importance of protein recognition of some A-DNA sequences the minor-groove geometry and helix-axis curvature for this structure is compared with all others of the type d(GGXATXCC).
Organizational Affiliation: 
The CRC Biomolecular Structure Unit, The Institute of Cancer Research, Sutton, Surrey, England. c.nunn@icr.ac.uk