Table 3.

Structural clusters in Aβ_10–40 dimer

Cluster	p∗	S†	H‡	C§	(C(Nt), C(Ct))¶	Nhb‖	Nihb∗∗
D1	0.47	0.44 (0.46,0.45)	0.15 (0.22,0.09)	33.1	(17.5,9.5)	4.7	6.9
D2	0.25	0.27 (0.15,0.42)	0.31 (0.52,0.12)	28.8	(15.3,8.8)	2.9	11.7
D3	0.19	0.29 (0.32,0.23)	0.26 (0.36,0.20)	27.3	(15.5,7.1)	2.7	13.1

^∗Fraction of structures included in the cluster, i.e., occurrence probability.

^†Fractions of β-structure in Aβ peptide and in the Nt and Ct terminals (in parentheses).

^‡Fractions of helix in Aβ peptide and in the Nt and Ct terminals (in parentheses).

^§Number of interpeptide contacts formed by a peptide in oligomer.

^¶Numbers of interpeptide contacts formed by the Nt and Ct sequence regions.

^‖Number of interpeptide HBs formed by a peptide in oligomer.

^∗∗Number of intrapeptide HBs in a peptide.