Table 1.

PP2C family members

	Size (kDa)	Isoforms	Tissue distribution	References
PP2Cα	42, 36	α‐1, α‐2	ubiquitous	27, 29, 33
PP2Cβ	42–55	β‐1(βs)‐β‐5,	β‐1, βx: ubiquitous	31, 32, 34–36
		βx (βl)	β‐2: brain, heart β‐3–5: testis, liver, intestine
PP2Cγ (FIN13)	59		ubiquitous	37, 38
PP2Cδ (ILKAP)	43		ubiquitous	39, 40
PP2Cɛ	34		rich in brain, heart, testis	47
PP2Cζ	56		testis	48
PP2Cη	45		ubiquitous	49
Wip1	66			41
CaMKP (hFEM2, POPX2)	49		ubiquitous	42, 43, 45
NERPP‐2C	55	NERPP‐55	brain	46
	80	NERPP‐80
CaMKP‐N (POPX1)	83		rich in brain, testis	44, 45
SCOP (PHLPP)	140			50, 51