MW: 9.3 kDa (91aa) confirmed by MALDI-TOF (Molecular size on SDS-PAGE will appear higher). Purity >85% by SDS-PAGE. Metallothionein 3, also known as MT3, binds heavy metals. This protein contains three zinc and three copper atoms per polypeptide chain and only a negligible amount of cadmium. This protein inhibits survival and neurite formation of cortical neurons in vitro. Recombinant human MT3 protein, fused to His-tag at N-terminus, was expressed in E Coli and purified by using conventional ch