Table 2. The sequence identity/similarity (%) between PCNA molecules.

	SsoPCNA1	SsoPCNA2	SsoPCNA3	huPCNA	StoPCNA3	PyrfuPCNA
SsoPCNA1		24/39	17/39	16/42	20/40	21/43
SsoPCNA2			23/48	21/45	26/51	31/54
SsoPCNA3				24/46	61/82	31/56
huPCNA					23/47	24/48
StoPCNA3						29/52