TABLE 4.

Amino acid sequence identity between APH(2″) phosphotransferases

Enzyme	Percentage identity
	APH(2″)-Ia	APH(2″)-Ib	APH(2″)-Ic	APH(2″)-Id
	%	%	%	%
APH(2″)-Ia	100
APH(2″)-Ib	33	100
APH(2″)-Ic	22	24	100
APH(2″)-Id	26	30	27	100