Abstract
MALTOSE phosphorylase from Neisseria meningiditis, discovered by Fitting, Doudoroff1, and Scherp2, catalyses the following reaction: 
Studies of specificity1,2 showed that of many sugars tested only D-xylose could replace glucose as the acceptor for glucose transferred from the phosphate donor. The product was 4-O-α-glucosylxylose3. The sugar phosphate could not be replaced by the α-anomer1,2.
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References
Fitting, C., and Doudoroff, M., Fed. Proc., 11, 212 (1952); J. Biol. Chem., 199, 153 (1952).
Fitting, C., and Scherp, H., J. Bact., 64, 287 (1952).
Putman, E. W., Litt, C. F., and Hassid, W. Z., J. Amer. Chem. Soc., 77, 4351 (1955).
Wood, B. J. B., and Rainbow, C., Biochem. J., 78, 204 (1961).
Zelinger, Z., and Schramm, M., J. Biol. Chem., 236, 2183 (1961).
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MORGAN, K., WHELAN, W. Substrate Specificity of Maltose Phosphorylase. Nature 196, 168–169 (1962). https://doi.org/10.1038/196168a0
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DOI: https://doi.org/10.1038/196168a0
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