OPT3 cDNA ORF clone, Arabidopsis thaliana(thale cress)

Sequence and analysis of chromosome 4 of the plant Arabidopsis thaliana.
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Nature402(6763)769-77(1999 Dec)

OPT3 is important for leaf phloem-loading of iron and plays a key role regulating Fe, Zn, and Cd distribution within the plant
Title: OPT3 is a component of the iron-signaling network between leaves and roots and misregulation of OPT3 leads to an over-accumulation of cadmium in seeds.

AtOPT3 plays a critical role in two important aspects of iron metabolism, namely, maintenance of whole-plant iron homeostasis and iron nutrition of developing seeds.
Title: The Arabidopsis AtOPT3 protein functions in metal homeostasis and movement of iron to developing seeds.

Transcription of At4g16370 is upregulated in Mn-, iron-, and copper-deficient plants. At4g16370 can rescue yeast CTR1 (copper deficient) and Smf1 (manganese deficient) mutants, suggesting a function in metal transport.
Title: Expression profiles of Arabidopsis thaliana in mineral deficiencies reveal novel transporters involved in metal homeostasis.