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Visualization of protein Fructose-1,6-bisphosphatase

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The parameters of hydrogen bonds between core atoms in secondary structure
#	N	O	Bond length (Å)	Angle N-O-C (°)
α-helix
1	[ASP]141:A	[ASN]145:A	2.973	154.9
2	[VAL]146:A	[LEU]150:A	3.021	160.5
3	[ASN]142:A	[VAL]146:A	2.977	161.0
4	[ARG]144:A	[ALA]148:A	3.009	160.1
5	[LEU]139:A	[LEU]143:A	2.872	168.7
β-sheet
1	[THR]302:A	[SER]295:A	3.086	150.0
2	[SER]295:A	[THR]302:A	2.805	162.1
3	[ILE]300:A	[LYS]297:A	3.013	150.6
4	[LYS]297:A	[ILE]300:A	3.009	132.1

The N-O-C angles of hydrogen bonds are in the range from 150° to 170°. It is the obtuse angle and this means that the atoms are arranged almost linearly.
The hydrogen bond length varies between 2.800 Å and 3.010 Å. It is mach longer than length of covalent bond (for example: the molecule of Cl's bond has the length = 1.02 Å). Terefore hydrogen bond is less strong connection than the covalent bond.