EC Number |
Metals/Ions |
Reference |
---|
1.9.6.1 | Mo |
molybdoprotein |
697968 |
1.9.6.1 | Mo |
subunit NapA is an 90000 Da catalytic subunit which binds a bis-molybdenum guanosine dinucleoside cofactor and a [4Fe4S] cluster |
654561 |
1.9.6.1 | Mo(VI) |
- |
742319 |
1.9.6.1 | Mo(VI) |
coordinates a cysteine and a sulfido residue |
741478, 742319, 742648 |
1.9.6.1 | Mo5+ |
NapA contains a molybdo-bis(molybdopterin guanine dinucleotide) cofactor. The molybdenum ion coordination sphere of NapA includes two molybdopterin guanine dinucleotide dithiolenes, a protein-derived cysteinyl ligand and an oxygen atom. The Mo-O bond length is 2.6 A, which is indicative of a water ligand. In NapA or NapAB, the Mo5+ state can not be further reduced to Mo4+. A catalytic cycle for NapA is proposed in which nitrate binds to the Mo5+ ion and where a stable des-oxo Mo6+ species may participate |
674891 |
1.9.6.1 | Mo6+ |
NapA contains a molybdo-bis(molybdopterin guanine dinucleotide) cofactor. The molybdenum ion coordination sphere of NapA includes two molybdopterin guanine dinucleotide dithiolenes, a protein-derived cysteinyl ligand and an oxygen atom. The Mo-O bond length is 2.6 A, which is indicative of a water ligand. In NapA or NapAB, the Mo5+ state can not be further reduced to Mo4+. A catalytic cycle for NapA is proposed in which nitrate binds to the Mo5+ ion and where a stable des-oxo Mo6+ species may participate |
674891 |
1.9.6.1 | Molybdenum |
- |
741478 |
1.9.6.1 | Molybdenum |
92% Mo incorporation in active CNapA. The Fe:Mo ratio is slightly higher than the theoretical value of 4:1 |
764685 |
1.9.6.1 | Molybdenum |
in the molybdenum cofactor. Role for NapD in the insertion of the molybdenum cofactor |
742486 |
1.9.6.1 | Molybdenum |
molybdenum-containing enzyme, the nitrate molecule binds to the active site with the molabdenum ion in the +6 oxidation state, electron transfer to the active site occurs only in the proton-electron transfer stage, where the molybdenum-V species plays an important role in catalysis |
699199 |