1.3.99.23: all-trans-retinol 13,14-reductase
This is an abbreviated version!
For detailed information about all-trans-retinol 13,14-reductase, go to the full flat file.
Reaction
Synonyms
(13,14)-all-trans-retinol saturase, 13,14-dihydroretinol saturase, all-trans-13,14-dihydroretinol saturase, all-trans-retinol:all-trans-13,14-dihydroretinol saturase, rat mammary tumor 7, retinol saturase, RetSat, RetSat A, Rmt7
ECTree
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Substrates Products
Substrates Products on EC 1.3.99.23 - all-trans-retinol 13,14-reductase
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REACTION DIAGRAM
(R)-all-trans-13,14-dihydroretinol + acceptor
all-trans-retinol + reduced acceptor
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retinol saturase catalyzes the saturation of all-trans-retinol to produce (R)-all-trans-13,14-dihydroretinol
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r
10'-apo-beta-carotene-3,10'-diol + acceptor
11',12'-dihydro-10'-apo-beta-carotene-3,10'-diol + reduced acceptor
i.e. galloxanthin
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-
?
all-trans-13,14-didehydroretinol + reduced acceptor
all-trans-13,14-dihydro-3,4-didehydroretinol + acceptor
all-trans-13,14-didehydroretinol + reduced acceptor
all-trans-7,8-dihydro-3,4-didehydroretinol + acceptor
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?
all-trans-13,14-dihydroretinol + acceptor
all-trans-retinol + reduced acceptor
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?
all-trans-13,14-dihydroretinol + reduced acceptor
all-trans-13,14-dihydro-3,4-didehydroretinol + acceptor
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?
all-trans-3,4-didehydroretinol + reduced acceptor
all-trans-13,14-dihydro-3,4-didehydroretinol + acceptor
all-trans-3,4-didehydroretinol is preferentially converted to all-trans-13,14-dihydro-3,4-didehydroretinol
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?
all-trans-7,8-dihydroretinol + acceptor
all-trans-retinol + reduced acceptor
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?
all-trans-7,8-dihydroretinol + reduced acceptor
all-trans-7,8-dihydro-3,4-didehydroretinol + acceptor
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?
all-trans-13,14-dihydro-3,4-didehydroretinol + acceptor
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preferred product
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?
all-trans-13,14-didehydroretinol + reduced acceptor
all-trans-13,14-dihydro-3,4-didehydroretinol + acceptor
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?
all-trans-13,14-dihydroretinol + FAD
all-trans-retinol + FADH2
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?
all-trans-13,14-dihydroretinol + FAD
all-trans-retinol + FADH2
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?
all-trans-13,14-dihydroretinol + FAD
all-trans-retinol + FADH2
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?
all-trans-13,14-dihydroretinol + FAD
all-trans-retinol + FADH2
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?
all-trans-retinol + NADH + H+
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?
all-trans-13,14-dihydroretinol + NAD+
all-trans-retinol + NADH + H+
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?
all-trans-13,14-dihydroretinol + NAD+
all-trans-retinol + NADH + H+
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?
all-trans-13,14-dihydroretinol + NAD+
all-trans-retinol + NADH + H+
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?
all-trans-13,14-dihydroretinol + NAD+
all-trans-retinol + NADH + H+
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?
all-trans-retinol + NADPH + H+
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?
all-trans-13,14-dihydroretinol + NADP+
all-trans-retinol + NADPH + H+
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?
all-trans-13,14-dihydroretinol + NADP+
all-trans-retinol + NADPH + H+
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?
all-trans-13,14-dihydroretinol + NADP+
all-trans-retinol + NADPH + H+
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?
all-trans-13,14-dihydroretinol + NADP+
all-trans-retinol + NADPH + H+
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?
all-trans-13,14-dihydroretinol + acceptor
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?
all-trans-retinol + reduced acceptor
all-trans-13,14-dihydroretinol + acceptor
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?
all-trans-retinol + reduced acceptor
all-trans-13,14-dihydroretinol + acceptor
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ir
all-trans-retinol + reduced acceptor
all-trans-13,14-dihydroretinol + acceptor
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-
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?
all-trans-retinol + reduced acceptor
all-trans-13,14-dihydroretinol + acceptor
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?
all-trans-7,8-dihydroretinol + acceptor
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preferred product
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?
all-trans-retinol + reduced acceptor
all-trans-7,8-dihydroretinol + acceptor
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all-trans-7,8-dihydroretinol is the preferred product
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?
?
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the recombinant enzyme expressed in HEK-293 cells is inactive on lycopene, and instead catalyzed saturation of all trans-retinol at the 13-14 double bond to generate all-trans-13,14-dihydroretinol. Saturation introduces a chiral C13 atom, RetSat selectively produces (R)-all-trans-13,14-dihydroretinol. In contrast to the murine protein, zebrafish RetSat saturates either the 7-8 or the 13-14 double bonds of the retinol side chain. Zebra fish RetSat expressed in HEK-293 cells catalyzes the formation of 11',12'-dihydro-10'-apo-beta-carotene-3,10'-diol (dihydrogalloxanthin) from 10'-apo-beta-carotene-3,10'-diol (galloxanthin)
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additional information
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the recombinant enzyme expressed in HEK-293 cells is inactive on lycopene, and instead catalyzed saturation of all trans-retinol at the 13-14 double bond to generate all-trans-13,14-dihydroretinol. Saturation introduces a chiral C13 atom, RetSat selectively produces (R)-all-trans-13,14-dihydroretinol. The enzyme is inactive on lycopene
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