Table I. Maximum level of competition of binding of biotinylated probe mAbs P30B9 and MoAb1 by excess concentrations of P30B9, MoAb1, and the FIND mAbs.

Probe mAb	Competing mAb (100 or 200 μg/ml)
	MoAb1 (%)	P30B9 (%)	FIND (%)
P30B9	98	99	100
	98	94	98
	97	100	100
MoAb1	94	47	57
	97	78	58
	100	52	ND

The percentage competition achieved at the highest concentration of competing Ab (100 or 200 μg/ml) is reported for three independent experiments.