A'-form RNA double helix in the single crystal structure of r(UGAGCUUCGGCUC).
AUTOR(ES)
Tanaka, Y
RESUMO
Here we demonstrate the presence of the A'-RNA conformation using the single crystal structure of a tridecamer: r(UGAGCUUCGGCUC). The average A'-RNA conformation deduced from X-ray fiber diffraction data had only been available previously, but now the presence of the A'-RNA conformation has been found in a single crystal structure for the first time. Statistical analysis showed that the A'-RNA conformation is distinguishable from the A-RNA conformation in a plot of the major groove width against the base pair inclination angle. The major groove of the A'-RNA conformation is wide enough to accommodate a protein or peptide while that of the A-RNA conformation is too narrow to do so. The presence of the A'-RNA conformation is significant for protein-RNA interaction.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=148272Documentos Relacionados
- B-form to A-form conversion by a 3′-terminal ribose: crystal structure of the chimera d(CCACTAGTG)r(G)
- High salt solution structure of a left-handed RNA double helix
- The conducting form of gramicidin A is a right-handed double-stranded double helix
- Structure of a mispaired RNA double helix at 1.6-A resolution and implications for the prediction of RNA secondary structure.
- Properties of pseudouridine N1 imino protons located in the major groove of an A-form RNA duplex.