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1.7.1.3: nitrate reductase (NADPH)

This is an abbreviated version!
For detailed information about nitrate reductase (NADPH), go to the full flat file.

Word Map on EC 1.7.1.3

Reaction

nitrite
+
NADP+
+
H2O
=
nitrate
+
NADPH
+
H+

Synonyms

assimilatory NADPH-nitrate reductase, assimilatory NADPH:nitrate reductase, Assimilatory nitrate reductase, assimilatory reduced nicotinamide adenine dinucleotide phosphate-nitrate reductase, EC 1.6.6.3, EC 1.7.99.4, MSMEG_2837, NADPH-dependent nitrate reductase, NADPH-nitrate reductase, NADPH2:nitrate oxidoreductase, NADPH:nitrate reductase, NADPH:NR, NaR1, narB, nit-3, nitrate reductase, nitrate reductase (NADPH), nitrate reductase (reduced nicotinamide adenine dinucleotide phosphate), nitrate reductase [NADPH], NR, triphosphopyridine nucleotide-nitrate reductase

ECTree

     1 Oxidoreductases
         1.7 Acting on other nitrogenous compounds as donors
             1.7.1 With NAD+ or NADP+ as acceptor
                1.7.1.3 nitrate reductase (NADPH)

Metals Ions

Metals Ions on EC 1.7.1.3 - nitrate reductase (NADPH)

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METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Al3+
A0A8D3X5C3; A0A8D3X5J3
1 mM, 113% of initial activity
Ca2+
A0A8D3X5C3; A0A8D3X5J3
1 mM, 136% of initial activity
Mg2+
A0A8D3X5C3; A0A8D3X5J3
1 mM, 120% of initial activity
Mn2+
A0A8D3X5C3; A0A8D3X5J3
1 mM, 114% of initial activity
Mo5+
-
in the active site-bound molybdenum cofactor
Molybdenum
NH4+
-
represses the intracellular NO3- assimilation, which is required for the induction and maintenace of NADPH nitrate reductase, enzyme is regulated by NH4+ at the transcriptional level
phosphate
-
stimulates, required for maximal activity
additional information
A0A8D3X5C3; A0A8D3X5J3
not inhibitory nor activating: Ba2+, Zn2+, EDTA