Table 2.

Mean bond angle for the 10 bond angles in Val and Thr from the Dunbrack database

Bond angle	Mean bond angle (°)
	Val	Thr
C′(i − 1)–N–Cα	121.7	121.0
N–Cα–C′	110.2	111.2
N–Cα–Cβ	111.2	109.4
C′–Cα–Cβ	109.3	111.0
Cα–C′–O	120.7	120.7
Cα–C′–N(i + 1)	116.2	116.5
O–C′–N(i + 1)	122.9	122.7
Cγ1–Cβ–Cγ2	110.2	—
Oγ1–Cβ–Cγ2	—	109.2
Cγ1–Cβ–Cα	110.2	—
Oγ1–Cβ–Cα	—	109.5
Cγ2–Cβ–Cα	110.0	110.6

C′ indicates the backbone carbonyl carbon; C′(i – 1) is the carbonyl carbon in the residue preceding Val or Thr; N(i + 1) is the nitrogen atom in the residue following Val or Thr. (See the bottom panel of Fig. S2 for the bond angle distributions.)