To form this structure the sequence must be

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ture: random coil. There is flexibility of rotation of residues and no specific structure. •  Stacked-base structure: adapted by non– self-complementary single strands under “native” conditions. Bases stack to pull the chain into a helix, but there is little Hbonding. •  Hairpin structures: formed by selfcomplementary sequences; the chain folds back on itself to make a stem–loop structure. Plasticity of Nucleic Acids •  Self ­complementarity in a base sequence allows a chain to fold back on itself and form a base ­paired, anDparallel helix or hairpin structure •  Double hairpins, ojen called cruciform (cross ­like) structures, can form in some DNA/RNA sequences. •  •  To form this structure, the sequence must be palindromic. Self ­complementarity dictates the ter.ary structure of tRNA. Plasticity of Secondary and Tertiary DNA Structure Structures of DNA! Triplex G ­Quadruplex Structures of DNA! Holliday Junc.on RNA Structure •  RNA molecules are usually single ­s...
View Full Document

This note was uploaded on 03/20/2014 for the course BIO 326R taught by Professor Whiteley during the Spring '08 term at University of Texas at Austin.

Ask a homework question - tutors are online