Metallothionein (Neurospora crassa copper-binding peptide moiety reduced), 3-(3-selenyl-L-alanine)-5-(3-selenyl-L-alanine)-11-(3-selenyl-L-alanine)-13-(3-selenyl-L-alanine)-17-(3-selenyl-L-alanine)-19-(3-selenyl-L-alanine)-22-(3-selenyl-L-alanine)-