Báo cáo khoa học: Fish and molluscan metallothioneins A structural and functional comparison
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Metallothioneins (MTs) are noncatalytic peptides involved in storage of essential ions, detoxification of nonessential metals, and scavenging of oxyradicals. They exhibit an unusual primary sequence and unique 3D arrangement. Whereas vertebrate MTs are characterized by the well-known dumbbell shape, with abdomain that binds three bivalent metal ions and anadomain that binds four ions, molluscan MT structure is still poorly understood.
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