Basepairs involving Hoogsteen(H) edge of Adenine and Hoogsteen(H) edge of Uracil is shown. Highlighted examples are found from RNA crystal structures obtained from PDB.
Base pairs stabilized by C-H...N/O interactions along with N-H...N/O hydrogen bonds
Basepair (type & Orientation) |
*Frequency |
Example |
Hydrogen bonding atoms with their
precursors |
0 | Optimized Model Structure |
N1-N6...O4-N3 C4-N7...C5-N1 |
|
8 | Optimized Model Structure |
C4-N7...C5-N1 C4-C8...O4-N3 |