2.6.1.80 additional information a point mutation in a gene encoding nicotianamine aminotransferase (NAAT1) stimulates the Fe(II) acquisition system and leads to iron accumulation in rice Oryza sativa ? - ? 89 2.6.1.80 nicotianamine + 2-oxoglutarate - Hordeum vulgare 3''-deamino-3''-oxonicotianamine + L-glutamate - ? 375198 2.6.1.80 nicotianamine + 2-oxoglutarate - Triticum aestivum 3''-deamino-3''-oxonicotianamine + L-glutamate - ? 375198