Parameter:	ΔG°37 loop (kcal/mol)	ΔH°loop (kcal/mol)
Initiation, n=1	+3.81 ± 0.08	+10.6 ± 1.2
Initiation, n=2	+2.8 ± 1.3	+7.1 ± 4.3
Initiation, n=3	+3.2 ± 1.9	+7.1 ± 11.7
Initiation, n=4	+3.6	+7.1
Initiation, n=5	+4.0	+7.1
Initiation, n=6	+4.4	+7.1
Special C Bulge	–0.9 ± 0.3	0