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Drug-Receptor Interaction of Peptidic HIV-1 Protease: Intermolecular Interaction-III
Online Journal of Microbiological Research
| Vol 3, Issue 1
Table 3. Properties of hydrogen bonds
| Properties | Very strong bonds | Moderate and weak bonds |
| Type of bonds | F―H…..F- | D―H…..A |
| O―H…..O- | (A is an electronegative atom) | |
| +O―H…..O | Two-, three- and four-center bonds | |
| Only two-center bonds | ||
| Bond length | Narrow range | Broad range |
| H…..A 1.2 to 1.5Ǻ | H…..A 1.5 to 3.0Ǻ | |
| H…..A ≈ D―H | H…..A > D―H | |
| Bond angles | Strongly directional | Weakly directional |
| D―H…..A ≈ 180˚ | D―H…..A ≈ 160±20˚ |