Basepairs involving WatsonCrick(W) edge of Cytosine and WatsonCrick(W) edge of Uracil is shown. Highlighted examples are found from RNA crystal structures obtained from PDB.
Base pairs stabilized by N-H...N/O type hydrogen bonds only
|
Basepair (type & Orientation) |
*Frequency |
Example |
Hydrogen bonding atoms with their
precursors |
|
1 | Optimized Model Structure |
C6-N3...O4-C5 C1'-O2...N3-C6 |
|
|
0 | Optimized Model Structure |
C1'-O2...N3-C6 C6-N3...O2-C1' |
|
|
22 | Residue Nos. 2575(B)-2511(B) PDB ID 2QAO |
C6-N3...N3-C6 C5-O4...N4-C5 |
|
|
2 | Optimized Model Structure |
C6-N3...N3-C6 C5-N4...O2-C1' |