, Research Paper
...amino acid cysteine and hence in proteins containing cysteine has high affinity for methyl mercury forming a strong covalent bond. Methyl mercury can coordinate (bond) to more than one... ?Methylation is the addition of a methyl group to a substrate or the substitution of an atom or a group of atoms by a methyl group. A methyl group, CH3, is an alkyl group derived from methane, CH4, by lost of one hydrogen. The methylation process converts inorganic (metal) mercury, Hg, to methyl mercury, CH3Hg+. As a positively charged ion, methyl mercury combines with anions, such as chloride (Cl-), nitrate (NO3-), hydroxide (OH-), and sulphur containing anions, such as thio groups (SH). Indeed, the thio group on the...