Table 2. Binding Parameters Calculated From ITC Measurements for each M13 Variant Peptide with CaM^a.

peptide	Kd (μM)	ΔH (kJ/mol)	n
M13	0.5	–59	0.9
W4C*	0.3	–43	0.9
F8C*	1.1	–27	0.9
	0.02	–26	0.3
S12C*	2	–64	1.0
R16C*	2	–32	1.1
I20C*	1.4	–72	1.0
S23C*	3	–65	1.0

^aSee the Supporting Information for the data and details of these fits.