Table 4.
Potential hydrogen bonds of 5′-ADP with RNase A (present study) and EDN (Leonidas et al. 2001a)
| Distance (Å) | ||||
| 5′-ADP | RNase A | EDN | RNase A | EDN |
| O1A | Lys7 Nζ | Lys38 Nζ | 2.9 | 2.9 |
| O1A | Gln11 Nɛ2 | 3.1 | — | |
| O3A | Gln11 Nɛ2 | 3.0 | — | |
| O1B | His12 Nɛ2 | His129 Nδ1 | 2.7 | 2.5 |
| O1B | Phe120 N | 3.0 | — | |
| O2B | Lys41 Nζ | Gln14 Nɛ2 | 2.7 | 2.8 |
| O3B | His119 Nδ1 | His15 Nɛ2 | 2.6 | 2.8 |
| O3B | Leu130 N | — | 2.8 | |
| O2′ | Gln40 O | — | 3.1 | |
| O2′ | Gln40 N | — | 3.1 | |
| O5′ | Lys7 Nζ | 2.9 | — | |
| N6 | Asn67 Oδ1 | 3.3 | — | |
| N6 | Gln69 Oɛ1 | 3.3 | — | |
| N6 | Asn71 Oδ1 | 3.0 | — | |
| N1 | Water | 2.8 | — | |
| N3 | Water | 2.8 | — | |
| N7 | Water | 3.0 | — | |
| O2′ | Water | 2.8 | — | |
| O3′ | Water | 2.8 | — | |
| O3′ | Water | 2.8 | — | |
| O1A | Water | 2.7 | — | |
| O2A | Water | 2.5 | — | |
| O2A | Water | 2.9 | — | |
| O2A | Water | 2.9 | — | |
| O3A | Water | 3.2 | — | |
| O1B | Water | 2.9 | — | |
| O2B | Water | 2.9 | — | |
| O2B | Water | 2.8 | — | |
| O3B | Water | 2.4 | 3.1 | |
| O3B | Water | 3.2 | — | |
Hydrogen bond interactions were calculated with the program HBPLUS (McDonald and Thornton 1994). Atom names are shown in Figure 1 ▶.