Table 1. Stability of selenium-binding proteins.

	Remaining amount, %		Binding ratio (Se:protein)
Protein	Selenium	Protein
Rodanese	30.9	67.3	0.5
3-MST	31.9	94.8	0.3
GAPDH	56.6	76.1	1.4

Each flow-through fraction (0.5 ml) from the FPLC column was stored in a 1.5-ml sample tube under aerobic conditions at 4°C for 4 weeks. Concentrations of selenium and protein in soluble supernatant fractions obtained after centrifugation are represented as the percentage of the corresponding values obtained before sample storage.