:Benzil reductase ((S)-benzoin forming)

{{Infobox enzyme

| Name = Benzil reductase ((S)-benzoin forming)

| EC_number = 1.1.1.320

| CAS_number =

| GO_code =

| image =

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Benzil reductase ((S)-benzoin forming) ({{EC number|1.1.1.320}}, YueD) is an enzyme with systematic name (S)-benzoin:NADP⁺ oxidoreductase.{{cite journal | vauthors = Maruyama R, Nishizawa M, Itoi Y, Ito S, Inoue M | title = Isolation and expression of a Bacillus cereus gene encoding benzil reductase | journal = Biotechnology and Bioengineering | volume = 75 | issue = 6 | pages = 630–3 | date = December 2001 | pmid = 11745140 | doi = 10.1002/bit.1191 }}{{cite journal | vauthors = Maruyama R, Nishizawa M, Itoi Y, Ito S, Inoue M | title = The enzymes with benzil reductase activity conserved from bacteria to mammals | journal = Journal of Biotechnology | volume = 94 | issue = 2 | pages = 157–69 | date = March 2002 | pmid = 11796169 | doi = 10.1016/s0168-1656(01)00426-6 }} This enzyme catalyses the following chemical reaction

: (S)-benzoin + NADP⁺ $\backslash rightleftharpoons$ benzil + NADPH + H⁺

The enzyme also reduces 1-phenylpropane-1,2-dione.