Pentose metabolism in Mycobacterium smegmatis: specificity of induction of pentose isomerases.
The induction of D-xylose, D-ribose, L-arabinose, and D-lyxose isomerases by various sugars was studied to determine the configuration necessary for induction. D-Xylose isomerase was only induced by D-xylose, whereas D-ribose isomerase was induced by D-ribose, L-rhamnose, and L-lyxose. L-arabinose isomerase was induced by L-arabinose, D-galactose, L-arabitol, D-fucose, and dulcitol, whereas D-lyxose isomerase was induced by D-lyxose, D-mannose, D-ribose, dulcitol, and myoinositol. Some compounds such as dulcitol, D-galactose, and D- or L-fucose which do not support growth are still able to serve as inducers for various pentose isomerases.
D001089:Arabinose / Q000378:metabolism; D002238:Carbohydrate Epimerases / Q000096:biosynthesis*; D004790:Enzyme Induction; D009161:Mycobacterium / Q000201:enzymology* / Q000378:metabolism; D010429:Pentoses / Q000378:metabolism*; D012210:Rhamnose / Q000378:metabolism; D012266:Ribose / Q000378:metabolism; D014994:Xylose / Q000378:metabolism
D010429:Pentoses; D012266:Ribose; D014994:Xylose; D001089:Arabinose; D002238:Carbohydrate Epimerases; D012210:Rhamnose