Encodes the cytosolic minor isoform of nitrate reductase (NR). Involved in the first step of nitrate assimilation, it contributes about 15% of the nitrate reductase activity in shoots. Similar to molybdopterin oxidoreductases at the N-terminus, and to FAD/NAD-binding cytochrome reductases at the C-terminus. Cofactors: FAD, heme iron (cytochrome B-557), and molybdenum-pterin.
T5120 is a long noncoding RNA and the sequence provided by the submitter is the cDNA sequence from Illumina. The localization of T5120 is at Chr1 from 29242426 to 29243102 between the genes of At1g77760 and At1g77765.