Multiple reductases may contribute to the reduction of all-trans-retinal (atRAL) to all-trans-retinol (atROL). Human retinol dehydrogenase 13 (RDH13) is located on the outer surface of the mitochondrial inner membrane where it is thought to protect mitochondria against oxidative stress associated with the highly reactive retinaldehyde (Belyaeva et al. 2008).
Belyaeva, OV, Korkina, OV, Stetsenko, AV, Kedishvili, NY
NADP-retinol dehydrogenase activity of RDH13 [mitochondrial inner membrane]
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