TABLE 14.

Predicted genes for complex carbohydrate and polyol utilization in bifidobacterial genomes

EnzymeSubstrateNo. of genes
B. longum subsp. longumB. longum subsp. infantis ATCC 15697B. adolescentis ATCC 15703B. dentium Bd1B. animalis subsp. lactis
DJO10ANCC 2705AD011Bl-04DSM 10140Bb-12
β-Fructofuranosidase/inulinaseFructofuran111111111
Cyclomaltodextrinase/neopullulanaseCyclodextrin111000000
Pullulanase/glycogen-debranching enzymePullulan222222223
GalactofuranosyltransferaseGalactofuran010001111
α-l-ArabinofuranosidaseArabinofuran641231111
Exo-α-l-arabinofuranosidase IIArabinofuran220210000
α-N-ArabinofuranosidaseArabinofuran100010000
Arabinogalactan endo-1,4-β-galactosidaseArabinogalactan111000000
Arabinan endo-1,5-α-L-arabinosidaseArabinan220010000
Glycanase/glycogenaseGlycan111111111
1,4-α-Glucan branching enzymeGlucan111111111
4-α-GlucanotransferaseGlucan222222222
Glucan/glycogen phosphorylaseGlucan111111111
β-1,4-Endoglucanase/cellulaseGlucan000020000
β-1,3-ExoglucanaseGlucan111120000
Xylan esteraseXylan111111111
Endo-1,4-β-xylanaseXylan210040001
Extracellular exoxylanaseXylan120000000
β-GlucuronidaseGlycoside100000000
α-1,4-GlucosidaseGlycoside111161111
Oligo-1,6-glucosidaseGlycoside111121111
β-d-glucosidaseGlycoside110111112
Thermostable β-glucosidase BGlycoside111131111
Endo-β-N-acetylglucosaminidaseGlycoprotein110000000
N-Acyl-d-glucosamine 2-epimeraseGlycoprotein111011111
Mannitol dehydrogenaseaMannitol100110000
Sorbitol dehydrogenaseaSorbitol100100000
β-N-AcetylhexosaminidasebGlycan222101111
Lacto-N-biose phosphorylasebGlycan111000000
α-l-fucosidasebGlycan003010000
Exo-α-sialidasebGlycan001000000
Total383324213817171720
  • a Polyol utilization genes (161).

  • b Predicted to be involved in human milk oligosaccharide utilization (280).