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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

Expression

Expression on EC 1.14.15.18 - calcidiol 1-monooxygenase

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EXPRESSION
ORGANISM
UNIPROT
LITERATURE
calcitonin induces 25-hydroxyvitamin D3 1alpha-hydroxylase protein levels in AOK-B50 cells transfected with a mouse 25-hydroxyvitamin D3 1alpha-hydroxylase promoter construct (transcription factor C/EBPbeta is involved)
-
expression of 1alpha-hydroxylase is induced via toll-like receptor, TLR, recognition of pathogens in macrophages, but not in colonic cells, i.e. Caco-2 and BBe colonic cell lines. Colonic epithelial cells may require specific factors to initiate intracrine responses to vitamin D.
-
genes CYP2R1 encoding vitamin D 25-hydroxylase, CYP27B1 encoding 25-hydroxyvitamin D-1 alpha hydroxylase and CYP24A1 encoding 1,25-dihydroxyvitamin D(3) 24-hydroxylase are upregulated in clear cell renal cell carcinomas compared with normal tissue. CYP24A1 displays a significantly higher expression in tumors than CYP27B1 and CYP2R1, whereas no differences in the expression of these genes are found in healthy renal tissue
-
hyperplastic parathyroid glands from patients with chronic kidney failure normally display a heterogeneous cellularity. 25-hydroxyvitamin D3 1alpha-hydroxylase is expressed at much higher levels in oxyphil cells than in chief cells in these patients. The calcimimetic cinacalcet increases the expression of the enzyme in human parathyroid cultures
-
in Klotho knockout mice
-
kidney: 25-hydroxycholecalciferol induces a significant downregulation 3 days after injection
kidney: calcitriol and 25-hydroxycholecalciferol induce a significant upregulation 6 days after injection
kidney: parathyroid hormone-related protein induces significant upregulation 6 h after injection
statistically significantly lower protein expression in malignant ovarian tissue
-