Alternative Name
Androgen-regulated short-chain dehydrogenase/reductase 1
Cell line MC/9.IL4-derived protein 1
M42C60
Prostate short-chain dehydrogenase/reductase 1
Retinal reductase 1
Short-chain aldehyde dehydrogenase
HCV core-binding protein HCBP12
Short chain dehydrogenase/reductase family 7C member 1
Double substrate specificity short-chain dehydrogenase/reductase 2
Description
Retinol dehydrogenase with a clear preference for NADP (PubMed:12807874, PubMed:29567832). Displays high activity towards 9-cis, 11-cis and all-trans-retinol, and to a lesser extent on 13-cis-retinol (By similarity) (PubMed:12807874). Exhibits also reductive activity towards toxic lipid peroxidation products such as medium-chain aldehydes trans-2-nonenal, nonanal, and cis-6-nonenal (PubMed:12807874). Has no dehydrogenase activity towards steroid (PubMed:12807874). Seems to be required for homeostasis of retinol in liver and testis (PubMed:29567832).
Retinol dehydrogenase with a clear preference for NADP. Displays high activity towards 9-cis, 11-cis and all-trans-retinol, and to a lesser extent on 13-cis-retinol (PubMed:12226107, PubMed:12036956, PubMed:29410696). Exhibits a low reductive activity towards unsaturated medium-chain aldehydes such as cis -6-nonenal and no activity toward nonanal or 4-hydroxy-nonenal (PubMed:15865448). Has no dehydrogenase activity towards steroid (PubMed:12226107, PubMed:12036956).
Retinoids dehydrogenase/reductase with a clear preference for NADP. Displays high activity towards 9-cis, 11-cis and all-trans-retinal. Shows very weak activity towards 13-cis-retinol. Also exhibits activity, albeit with lower affinity than for retinaldehydes, towards lipid peroxidation products (C9 aldehydes) such as 4-hydroxynonenal and trans-2-nonenal. May play an important function in photoreceptor cells to detoxify 4-hydroxynonenal and potentially other toxic aldehyde products resulting from lipid peroxidation. Has no dehydrogenase activity towards steroids.
Catalytic Activity
all-trans-retinol + NADP(+) = all-trans-retinal + H(+) + NADPH
11-cis-retinol + NADP(+) = 11-cis-retinal + H(+) + NADPH
9-cis-retinol + NADP(+) = 9-cis-retinal + H(+) + NADPH
13-cis-retinol + NADP(+) = 13-cis-retinal + H(+) + NADPH
a medium-chain primary fatty alcohol + NADP(+) = a medium-chain fatty aldehyde + H(+) + NADPH
(2E,6Z)-nona-2,6-dien-1-ol + NADP(+) = (2E,6Z)-nona-2,6-dienal + H(+) + NADPH
(E)-oct-2-en-1-ol + NADP(+) = (2E)-octenal + H(+) + NADPH
(E)-non-2-en-1-ol + NADP(+) = (E)-non-2-enal + H(+) + NADPH
heptan-1-ol + NADP(+) = H(+) + heptanal + NADPH
hexan-1-ol + NADP(+) = H(+) + hexanal + NADPH
decan-1-ol + NADP(+) = decanal + H(+) + NADPH
NADP(+) + nonan-1-ol = H(+) + NADPH + nonanal
NADP(+) + octan-1-ol = H(+) + NADPH + octanal
(Z)-non-6-en-1-ol + NADP(+) = (Z)-non-6-enal + H(+) + NADPH
a 4-hydroxynonen-1-ol + NADP(+) = a 4-hydroxynonenal + H(+) + NADPH
Biophysicochemical Properties
57 uM for all-trans-retinal
14 uM for 9-cis-retinal
30 uM for nonan-1-ol
20 uM for NADPH
0.23 uM for NADPH
0.8 uM for NADP
0.5 uM for all-trans-retinal
0.62 uM for 13-cis-retinal
0.19 uM for 9-cis-retinal
1.3 uM for all-trans-retinol
5 uM for (Z)-non-6-enol