TABLE 2.

Comparison of phosphorylation sites in AHAs expressed homologously in plant membranes with those of AHA2 expressed heterologously in yeast membranes

Cytosolic domain	Phosphorylated in planta			Phosphorylated in fungus
	AHA1	AHA2	AHA3	AHA2	Pma1p
N-terminal domain	Ser-2			Ser-2
		Ser-3	Ser-3	Ser-3
					Ser-11
					Ser-12
					Ser-14
					Ser-52
					Ser-61
Central part					Ser-464
				Thr-511
	Ser-544
					Thr-647
C-terminal domain	Thr-881	Thr-881
	Ser-899	Ser-899		Ser-899
			Thr-889
		Ser-931		Ser-931
				Ser-942
		Ser-944		Ser-944
		Tyr-946		Tyr-946
	Thr-948	Thr-947	Thr-948	Thr-947