The Base Pair Directory
| GU base pairs with two standard hydrogen bonds |
| base | potential H-bond donor/acceptor sites |
guanine G  |
G(1da3) N3... C2 N2-H... |
G(dd3) N1-H... C2 N2-H... |
G(2da3) O6... C6 N1-H... |
G(aa4) O6... C6 C5 N7... |
uracil U  |
U(1da3) O4... C4 N3-H... |
U(2da3) N3-H... C2 O2... |
| base pair H-bond motif | structure images |
G(1da3)...U(2da3)
GC amino-2-carbonyl, N3-N3 N2-H...N3 C2 C2 N3...H-N3Not mentioned in other compilations. |
 |
G(2da3)...U(2da3) GU reverse wobble N1-H...O2 C6 C2 O6...H-N3 |
|
G(1da3)...U(1da3) GU amino-4-carbonyl, N3-N3 N2-H...O4 C2 C4 N3...H-N3Not mentioned in other compilations. |
|
G(2da3)...U(1da3) GU wobble O6...H-N3 C6 C4 N1-H...O4 |
