Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Molecular models comparing natural B-form DNA dodecamer (left) with a plausible model of yyDNA composed of yyT-A and yyC-G pairs (right). Side views (A) and end views (B) are shown. Both modeled structures (AMBER force field; continuum water) are right-handed and antiparallel double helices, with similar sugar conformations. The chief differences predicted for yyDNA are widened grooves and a lower degree of twisting, resulting in ca. 14 base pairs per 360° turn of the helix.
