Table 2.

Degenerated EF-hand motifs of AtCDPKs.

CDPK	Subgroup	Degenerated EF-Hand	Position of Altered Amino Acidin Ca2+-Binding Loop	Ca2+-Dependence
CPK25	I	1,2 (3,4 missing)	EF1: G3 and EF2: H3	No
CPK23	II	1	Q12	Weak
CPK7	III	1	R5	No
CPK8	III	1	K3	Weak
CPK10	III	3	T6	Weak
CPK13	III	2,3	EF2: K3, K5 and EF3: L9	Weak
CPK14	III	1	R5	Not analyzed
CPK30	III	undetected	undetected	No
CPK32	III	1	R5	Weak

The analysis is based on amino acid sequences of the conserved EF-hand motifs and those harbored in AtCDPKs (modified from [1,69]).