Table 1.

Covalent and hydrogen bond forces at the equilibrium of particular relevance in proteins

Covalent bonds (46)		Hydrogen bonds (47)
Type	Force (eV/Å)	Type	Force (eV/Å)
C-N	~2.0	N-H⋅⋅⋅O	~0.08
C-C	~2.2	C-H⋅⋅⋅N	~0.12
C-S	~1.4	O-H⋅⋅⋅O	~0.10
C-O	~2.5	C-H⋅⋅⋅O	~0.20
S-S	~1.3	–	–

Force values are computed by dividing the tabulated energies by the tabulated equilibrium bond distances. Hydrogen bonds are indicated by ⋅⋅⋅.