Table 1.
Components of molybdenum metabolism in higher plants (Arabidopsis thaliana).
| Protein names | Agi code | Known / proposed function |
|---|---|---|
| MOT1/SULTR 5;2 | AT2G25680 | Molybdate transport |
| MOT2/SULTR 5;1 | AT1G80310 | Molybdate transport / export from vacuole |
| CNX1 | AT5G20990 | Moco biosynthesis step 3 |
| CNX2 | AT2G31955 | Moco biosynthesis step 1 |
| CNX3 | AT1G01290 | Moco biosynthesis step 1 |
| CNX5 | AT5G55130 | Moco biosynthesis step 2 |
| CNX6 | AT2G43760 | Moco biosynthesis step 2 |
| CNX7 | AT4G10100 | Moco biosynthesis step 2 |
| Nia1/NR1 | AT1G77760 | Nitrate reductase (minor form) |
| Nia2/NR2 | AT1G37130 | Nitrate reductase (main form) |
| SO | AT3G01910 | Oxidation/elimination of cytotoxic sulfite |
| mARC1/MOSC1 | AT5G44720 | Unknown (reduction of N-hydroxylated compounds ?) |
| mARC2/MOSC2 | AT1G30910 | Unknown (reduction of N-hydroxylated compounds ?) |
| AAO1 | AT5G20960 | Unknown (IAA biosynthesis ?) |
| AAO2 | AT3G43600 | Unknown (IAA biosynthesis ?) |
| AAO3 | AT2G27150 | ABA biosynthesis |
| AAO4 | AT1G04580 | Synthesis of benzoic acid |
| AtXDH1 | AT4G34890 | Purine degradation |
| AtXDH2 | AT4G34900 | Pseudogene ? |
| ABA3/LOS5 | AT1G16540 | Mocosulfuration and activation of AO and XDH proteins |
| ATM3/ABCB25 | AT5G58270 | Transporter involved in cytosolic Fe-S assembly and Moco synthesis |