. Author manuscript; available in PMC: 2020 Aug 24.

Published in final edited form as: Biopolymers. 2017 Mar;107(3):10.1002/bip.22995. doi: 10.1002/bip.22995

Table 2:

Turn insertion into unstructured loops.

Entry #	System	Loop Length	Sequence cap – β-strand – loop – β-strand – cap’	ΔG_U (kJ/mol)	Fraction Folded (χ_F)^a
Entry #	System	Loop Length	Sequence cap – β-strand – loop – β-strand – cap’	280 K	300K	320K
19	B2	6	Ac-WITVTI-GGGGGG-KKIRVWTG-NH₂	+ 1.6	0.64	0.50
20	B2	6	Ac-WITVTI-(GIpGKG)-KKIRVWTG-NH₂	+ 7.3	0.92	0.86
21	B2	8	Ac-WITVTI-(GNPATGKG)-KKIRVWTG-NH₂	+ 2.2	0.71	0.54
5	B2	10	Ac-WITVTI-(G₃GKK)GG₃-KKIRVWTG-NH₂	+ 2.1	0.57	0.35
22	B2	10	Ac-WITVTI-(G₃IpGKG₃)-KKIRVWTG-NH₂	+ 4.7	0.81	0.63
23	C2	6	RWITVTI-GGGGGG-KKIRVWE	+ 5.8	0.88	0.77
24	C2	6	RWITVTI - GIpGKG – KKIRVWE	+ 6.9	0.97	0.98
25	C2	6	RWITVTI - GIPGKG – KKIRVWE	+ 5.9	0.92	0.85
26	C2	8	RWITVTI - GNPATGKG – KKIRVWE	+ 5.7	0.90	0.80
11	C2	10	RWITVTI-(G₃GKK)GG₃-KKIRVWE	+ 5.0	0.84	0.59
27	C2	10	RWITVTI - G₃IpGKG₃ – KKIRVWE	+ 6.4	0.93	0.86
28	C2	10	RWITVTI - G₃IPGKG₃ – KKIRVWE	+ 5.1	0.90	0.72
12	C2	16	RWITVTI-(G₃GKK)₂GG₃-KKIRVWE	+ 2.1	0.56	0.38
29	C2	16	RWITVTI - G₆IpGKG₆ – KKIRVWE	+ 4.2	0.77	0.57
30	C2	16	RWITVTI - G₆IPGKG₆ – KKIRVWE	+ 3.4	0.69	0.45
31	C2	16	RWITVTI – G₅NPATGKG₅ – KKIRVWE	+ 4.2	0.79	0.63

Fraction folded values represent an average of multiple CSDs (further explained in Supporting Information). Uncertainty in the fully-folded CSD values represents a circa 0.03 fraction-folded error in the χ_F = 0.90 range. In the χ_F = 0.35 – 0.90 range, the agreement over the multiple probes provides an error of ~0.09.