Table 1.

Competition of [¹²⁵I]TGF-β binding to decorin- and LAP-coated microtiter plates

Precoating	Competitor used	% reduction of binding of [125I]TGF-β
		Exp. 1	Exp. 2
Decorin	Decorin	78	63
	BSA	16	11
LAP	LAP	60	92
	BSA	13	11

Samples containing [¹²⁵I]TGF-β alone or in combination with decorin (50 μg/ml), LAP (100 ng/ml), or BSA (50 μg/ml) were added to microtiter plates precoated with decorin or LAP. The bound radioactivity was solubilized and counted in a γ counter. Results represent percent reduction of binding of [¹²⁵I]TGF-β in two experiments performed.