Table I.

The performance of constrained CCD in building α-helices, β-strands, and loops.

Index	IDa	Typeb	Sequencec	Lengthd	6Åe		9Åf		12Åg
					RMSD	Time (ms)	RMSD	Time (ms)	RMSD	Time (ms)
1	2Y4Z	H	89–96	8	0.87	15	0.93	14	0.63	1
2	1OZ9	H	50–61	12	0.93	4	0.69	4	0.86	2
3	4V68	H	37–58	22	1.95	31	1.67	24	1.56	24
4	2Y4Z	H	108–134	27	0.53	10	0.53	11	0.47	19
5	1OXJ	H	639–669	31	1.62	55	1.47	30	1.21	27
6	2Y4Z	S	10–13	4	0.71	11	0.61	1	0.61	<1
7	1OZ9	S	69–74	6	0.81	26	0.94	14	0.87	13
8	4V68	S	111–115	5	1.35	14	1.47	3	1.50	3
9	1ICX	S	52–58	7	0.84	27	0.79	14	0.77	13
10	3CAU	S	318–325	8	1.65	25	1.42	14	1.34	12
11	1ICX	S	94–105	12	2.04	66	1.92	42	1.96	30
12	2Y4Z	L	4–9	6	1.86	25	1.86	22	1.86	22
13	1A7D	L	87–92	6	2.01	43	1.87	37	1.72	38
14	2RU9	L	13–21	9	2.47	30	2.29	6	2.01	2
15	4V68	L	101–110	10	2.08	150	2.08	108	1.95	135
16	2Y4Z	L	97–107	11	3.23	70	2.03	34	2.19	18
17	4OXW	L	57–73	17	5.42	440	3.9	362	3.7	108

^aThe PDB ID of the protein.

^bThe type of the secondary structure; H for helix, S for β-strand, and L for Loop/turn.

^cThe amino acid index for the start and the end of the sequence segment.

^dThe length of the secondary structure.

^eThe backbone RMSD (Å) from the native, the time (millisecond) to build, the length of trace segment: 6Å.

^fThe backbone RMSD (Å) from the native, time (millisecond) to build, the length of trace segment: 9Å.

^gThe backbone RMSD (Å) from the native, the time (millisecond) to build, the length of trace segment:12Å.