cation efflux family protein / metal tolerance protein, putative (MTPc4). Identical to Metal tolerance protein C4 (MTPC4) [Arabidopsis Thaliana] (GB:Q8H1G3;GB:Q949W1;GB:Q9C531); similar to unnamed protein product [Vitis vinifera] (GB:CAO41637.1); contains InterPro domain Cation efflux protein; (InterPro:IPR002524)