ATMTP1/MTP1/ZAT1 (ZINC TRANSPORTER OF ARABIDOPSIS THALIANA); zinc ion transmembrane transporter. Identical to Metal tolerance protein 1 (MTP1) [Arabidopsis Thaliana] (GB:Q9ZT63;GB:O81036); similar to MTPB1, efflux transmembrane transporter/ zinc ion transmembrane transporter [Arabidopsis thaliana] (TAIR:AT2G29410.1); similar to heavy metal transporter MTP2 [Arabidopsis lyrata] (GB:AAR83909.1); contains InterPro domain Cation efflux protein; (InterPro:IPR002524)