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1.14.15.18: calcidiol 1-monooxygenase

This is an abbreviated version!
For detailed information about calcidiol 1-monooxygenase, go to the full flat file.

Word Map on EC 1.14.15.18

Reaction

calcidiol
+ 2 reduced adrenodoxin + 2 H+ +
O2
=
calcitriol
+ 2 oxidized adrenodoxin +
H2O

Synonyms

1-hydroxylase-25-hydroxyvitamin D3, 1-OHase, 1alpha,25-dihydroxyvitamin D hydroxylase, 1alpha-hydroxylase, 1alpha-OHase, 1alphaOHase, 25 hydroxy-vitamin D3-1alpha hydroxylase, 25(OH)VD3 1alpha-hydroxylase, 25-hydroxy D3-1alpha-hydroxylase, 25-hydroxycholecalciferol 1-hydroxylase, 25-hydroxycholecalciferol 1-monooxygenase, 25-hydroxycholecalciferol 1alpha-hydroxylase, 25-hydroxycholecalciferol-1-hydroxylase, 25-hydroxyvitamin D 1alpha-hydroxylase, 25-hydroxyvitamin D-1 alpha-hydroxylase, 25-hydroxyvitamin D-1-alpha-hydroxylase, 25-hydroxyvitamin D-1alpha-hydroxylase, 25-hydroxyvitamin D3 1alpha-hydroxylase, 25-hydroxyvitamin D3-1alpha-hydroxylase, 25-hydroxyvitamin-D3-1alpha-hydroxylase, CYB27B1, CYP1alpha, CYP27A, CYP27B1, cytochrome P450 25-hydroxyvitamin D3-1alpha-hydroxylase, EC 1.14.13.13, extra-renal 25-hydroxyvitamin D-1alpha-hydroxylase, extra-renal 25-hydroxyvitamin D3 1alpha-hydroxylase, hydroxylase, 25-hydroxcholecalciferol 1-, More, oxygenase, 25-hydroxycholecalciferol 1-mono-, P450 cytochrome 25-hydroxyvitamin D3 1alpha-hydroxylase, VD3 25-hydroxylase, VDH, vitamin D 1alpha-hydroxylase, vitamin D hydroxylase, vitamin D3 25- and 1alpha-hydroxylase, vitamin D3 25-hydroxylase, vitamin D3 hydroxylase, [25(OH)D3]-1alpha-hydroxylase

ECTree

     1 Oxidoreductases
         1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
             1.14.15 With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor
                1.14.15.18 calcidiol 1-monooxygenase

KM Value

KM Value on EC 1.14.15.18 - calcidiol 1-monooxygenase

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.0011
(24R),25-dihydroxycholecalciferol
26
(24R),25-dihydroxyvitamin D3
-
pH 7.4, 37°C, Michaelis-Menten kinetic parameters
0.00052 - 0.00066
1alpha-hydroxyvitamin D
49
20-hydroxyvitamin D3
-
pH 7.4, 37°C, parameters using a kinetic model with substrate binding at two inhibitory sites
0.0013
24,25-dihydroxycholecalciferol
-
-
0.000088 - 0.89
25-hydroxycholecalciferol
0.00013 - 0.00054
25-hydroxyvitamin D
4.6 - 4.8
25-hydroxyvitamin D2
5.9 - 9.7
25-hydroxyvitamin D3
additional information
additional information
-