Genetic analysis of a novel pathway for D-xylose metabolism in Caulobacter crescentus.
Genetic data suggest that the oligotrophic freshwater bacterium Caulobacter crescentus metabolizes D-xylose through a pathway yielding alpha-ketoglutarate, comparable to the recently described L-arabinose degradation pathway of Azospirillum brasilense. Enzymes of the C. crescentus pathway, including an NAD(+)-dependent xylose dehydrogenase, are encoded in the xylose-inducible xylXABCD operon (CC0823-CC0819).
Stephens
Craig
C
Biology Department, Santa Clara University, Santa Clara, CA 95053, USA. cstephens@scu.edu
Christen
Beat
B
Fuchs
Thomas
T
Sundaram
Vidyodhaya
V
Watanabe
Kelly
K
Jenal
Urs
U
D001089:Arabinose / Q000378:metabolism; D002237:Carbohydrate Dehydrogenases / Q000378:metabolism; D016935:Caulobacter crescentus / Q000235:genetics / Q000378:metabolism*; D009876:Operon; D014994:Xylose / Q000378:metabolism*
D014994:Xylose; D001089:Arabinose; D002237:Carbohydrate Dehydrogenases; C082601:aldose dehydrogenase (pyrroloquinoline-quinone)