1.1.1.236: tropinone reductase II

This is an abbreviated version, for detailed information about tropinone reductase II, go to the full flat file.

Reaction

pseudotropine
+
NADP+
=
tropinone
+
NADPH
+
H+

Synonyms

More, pseudotropine forming tropinone reductase, pseudotropine-forming tropinone reductase, pseudotropinone forming tropinone reductase, TR-II, TRII, tropinone (psi-tropine-forming) reductase, tropinone reductase, tropinone reductase I, tropinone reductase II, tropinone reductase-II

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.236 tropinone reductase II

Systematic Name

Systematic Name on EC 1.1.1.236 - tropinone reductase II

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SYSTEMATIC NAME
IUBMB Comments
pseudotropine:NADP+ 3-oxidoreductase
This enzyme along with EC 1.1.1.206, tropine dehydrogenase, represents a branch point in tropane alkaloid metabolism [3]. Tropine (the product of EC 1.1.1.206) is incorporated into hyoscyamine and scopolamine whereas pseudotropine (the product of EC 1.1.1.236) is the first specific metabolite on the pathway to the calystegines [3]. Both enzymes are always found together in any given tropane-alkaloid-producing species, have a common substrate, tropinone, and are strictly stereospecific [2].