Article
A bacterial glucanotransferase can replace the complex maltose metabolism required for starch to sucrose conversion in leaves at night.
The Journal of biological chemistry - 4 Oct 2013
Ruzanski Christian, Smirnova Julia, Rejzek Martin, Cockburn Darrell, Pedersen Henriette L, Pike Marilyn, Willats William G T, Svensson Birte, Steup Martin, Ebenhöh Oliver, Smith Alison M, Field Robert A
Abstract excerpt
Controlled conversion of leaf starch to sucrose at night is essential for the normal growth of Arabidopsis. The conversion involves the cytosolic metabolism of maltose to hexose phosphates via an unusual, multidomain protein with 4-glucanotransferase activity, DPE2, believed to transfer glucosyl moieties to a complex heteroglycan prior to their conversion to hexose phosphate via a cytosolic phosphorylase. The...
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