Table 1.

Stimulation of zinc transfer from MT to PAR by selenium compounds in the absence and presence of glutathione (GSH)

Se compound	Concentration, μM	Zinc transferred, %	Zinc transferred in the presence of GSH, %
Selenocystamine	50	30	18
Benzeneselenenyl chloride	20	100	17
Benzeneseleninic acid	20	100	25

MT (0.5 μM) was incubated with selenium compounds in 20 mM Hepes-Na⁺/100 μM PAR (pH 7.5) in the absence and presence of a 5-fold excess of GSH over selenium compound. Measurements were taken after 1 h.