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Precorrin-6A reductase

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Class of enzymes
precorrin-6A reductase
Identifiers
EC no.1.3.1.54
CAS no.137672-84-5
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In enzymology, a precorrin-6A reductase (EC 1.3.1.54) is an enzyme that catalyzes the chemical reaction

precorrin-6A + NADPH + H {\displaystyle \rightleftharpoons } precorrin-6B + NADP

The three substrates of this enzyme are precorrin 6A, NADPH and a proton; its two products are precorrin 6B and NADP.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH=CH group of an acceptor with NAD or NADPH as donor. The systematic name of this enzyme class is precorrin-6B:NADP+ oxidoreductase. Other names in common use include precorrin-6X reductase, precorrin-6Y:NADP+ oxidoreductase and CobK. This enzyme is part of the biosynthetic pathway to cobalamin (vitamin B12) in aerobic bacteria.

See also

References

Oxidoreductases: CH–CH oxidoreductases (EC 1.3)
1.3.1: NAD/NADP acceptor
1.3.3: Oxygen acceptor
1.3.5: Quinone
1.3.99: Other acceptors
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