the coenzyme not involved in hydrogen transport a)FMN b)FAD c)NADP+ c)FH4
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CO-ENZYME IN HYDROGEN TRANSPORT
The coenzyme not involved in hydrogen transport is FH4
GETTING TO KNOW REACTIONS BY CO-ENZYMES IN HYDROGEN PROJECT:
* The stereochemistry of hydrogen transfer to NAD mediated by Klebsiella pneumoniae ribitol dehydrogenase (ribitol: NAD 2-oxidoreductase, EC 1.1.1.56) and Escherichia coli D-mannitol-1-phosphate dehydrogenase (D-mannitol-1-phosphate:NAD 2-oxidoreductase, EC 1.1.1.17) was examined.
* The [4-3H]-NADH generated in both cases was isolated and the chirality at the C-4 site was determined. The label was observed to be exclusively restricted to the (4R) position of the newly synthesized [4-3H]NADH in both reactions after the transfer of hydride. The hydrogen transported from the nonlabelled substrates to [4-3H]NAD must have entered the (4S) position of the nicotinamide ring to explain these results.