. "Acts on CH(3)Hg(+) and a number of other alkylmercury compounds, in the presence of cysteine or other thiols, liberating mercury as a mercaptide." . "Some arylmercury compounds can also act as substrates." . . . "Organomercurial lyase" . "Alkylmercury lyase" . "Organomercury lyase" . "An alkylmercury + H(+) = an alkane + Hg(2+)." .