Patent ID: 8383889

Claim:
An isolated polynucleotide selected from the group consisting of: (i) a polynucleotide comprising a sequence having at least 90% sequence identity to SEQ ID NO: 1, and encoding a NtHMA transporter having P1B-type ATPase activity; (ii) a polynucleotide comprising a sequence having at least 90% sequence identity to SEQ ID NO: 3, and encoding a NtHMA transporter having P1B-type ATPase activity; (iii) a polynucleotide comprising a sequence having at least 90% sequence identity to SEQ ID NO: 47, and encoding a NtHMA transporter having P1B-type ATPase activity; (iv) a polynucleotide comprising a sequence encoding a polypeptide having at least 90% sequence identity to SEQ ID NO:2, wherein the polypeptide is a NtHMA transporter having P1 B-type ATPase activity; and (v) a polynucleotide comprising a sequence encoding a polypeptide having at least 90% sequence identity to SEQ ID NO: 49, wherein the polypeptide is a NtHMA transporter having P1B-type ATPase activity.