Table 1. NMR constrains and structural statistics for 10 Aβ_17–34 peptide structures.

Measurements
NMR distance constrains
Total constrains	86
Medium range (|i–j|<4)	11
Torsion angle constraints (φ)	5
Mean RMSD values
Backbone atoms	1.48
Backbone atoms of α-helix	0.28