Table 2.

The root mean square deviation (RMSD) values of superimposed C_a-backbone atoms of the complete proteinase domain, and the β-strand IV-linker, the S${}_1^{\prime }$-pocket, and the zinc binding sites of and Crotalus atrox atrolysins Ht-a, Ht-b, Ht-c, Ht-d, and Ht-eas compared to each other

Proteinases	RMSDa	RMSDb	RMSDc	RMSDd
Ht-a vs. Ht-b	0.53 Å	0.39 Å	0.82 Å	0.22 Å
Ht-a vs. Ht-c	0.56 Å	0.44 Å	0.62 Å	0.33 Å
Ht-a vs. Ht-d	0.55 Å	1.04 Å	0.73 Å	0.16 Å
Ht-a vs. Ht-e	0.60 Å	1.14 Å	0.33 Å	0.24 Å
Ht-b vs. Ht-c	0.50 Å	0.63 Å	0.62 Å	0.18 Å
Ht-b vs. Ht-d	0.48 Å	1.07 Å	0.48 Å	0.23 Å
Ht-b vs. Ht-e	0.66 Å	1.16 Å	0.90 Å	0.22 Å
Ht-c vs. Ht-d	0.54 Å	1.08 Å	0.75 Å	0.18 Å
Ht-c vs. Ht-e	0.70 Å	1.17 Å	0.88 Å	0.30 Å
Ht-d vs. Ht-e	0.55 Å	0.60 Å	0.75 Å	0.28 Å
Ht-a vs. AdII	0.63 Å	0.60 Å	0.88 Å	0.37 Å
Ht-b vs. AdII	0.70 Å	0.62 Å	0.68 Å	0.38 Å
Ht-c vs. AdII	0.51 Å	0.54 Å	0.48 Å	0.31 Å
Ht-d vs. AdII	0.71 Å	1.11 Å	0.40 Å	0.35 Å
Ht-e vs. AdII	0.78 Å	1.02 Å	0.87 Å	0.42 Å

^aComplete molecular structure RMSD values for C_a-backbone atoms

^b β-strand IV-linker RMSD values for C_a-backbone atoms

^c S${}_1^{\prime }$-pocket RMSD values for C_a-backbone atoms

^d Zinc binding site RMSD values for C_a-backbone atoms