Table 1: Correlation Coefficient Between Different Structural Parameters and Experimental Protection Factors

PDB	B-factor (Cα)	Atom-atom contacts	CamP [15]	Entropy scale [25]
1hml	0.35	-0.42	-0.43	-0.06
1hrc	0.17	-0.53	-0.54	-0.08
2ci2	0.43	-0.52	-0.10	-0.01
2eql	0.32	-0.45	-0.44	-0.10
2rn2	0.41	-0.45	-0.35	0.11
2sns	-	-0.30	-0.36	-0.10
6pti	0.31	-0.63	-0.67	-0.35
average	0.33	-0.47	-0.41	-0.08