Table 1. Position of the catalytic domain of all proteins used and the corresponding domain numbering.

Protein	Position in whole sequence	Catalytic domain numbering
FP-2	244–484	1–243
FP-3	250–492	1–242
VP-2	246–487	1–242
VP-3	253–493	1–241
KP-2	252–495	1–244
KP-3	240–479	1–240
BP-2	228–468	1–241
CP-2	231–471	1–241
YP-2	232–472	1–241
Cat-K	115–329	1–215
Cat-L	113–333	1–221