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1.2 C-1 kinases and sugar salvage pathways

Evidence that certain monosaccharides are hydrolyzed from polymeric forms during growth and development is implicit in the existence of C-1 kinases and NDP- pyrophosphorylases that return them directly to the nucleotide-sugar interconversion pathway. The monosaccharides capable of incorporation via these salvage pathways are: Galactose, GalA, Arabinose, Glucuronic acid, and Fucose. An arabinokinase was identified on the basis of a mutant (aral) sensitive to low amounts of arabinose, which is toxic.

References: Sherson, S., I. Gy, J. Medd, R. Schmidt, C. Dean, M. Kreis, A. Lecharny, C. Cobbett. 2000. The arabinose kinase, ARA1, gene of Arabidopsis is a novel member of the galactose kinase gene family. Plant Mol. Biol. 39, 1003-12. SALK T-DNA: At4g16130 MIPS: AT4G16130 TAIR: AT4G16130 GenBank: U8180

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