TABLE 13.

Comparative analysis of COG carbohydrate metabolism category (category G) in bifidobacterial genomes

Functional category and COG no.No. of genesCOG annotation
B. longum subsp. longumB. longum subsp. infantis ATCC 15697B. adolescentis ATCC 15703B. dentium Bd1B. animalis subsp. lactis
DJO10ANCC2705AD011, Bl-04, and DSM 10140Bb-12
Non-PTS sugar transport system
    COG039513101681955Sugar permeases
    COG047729234119311516Permeases of the major facilitator superfamily
    COG05802222221Glycerol uptake facilitator and related permeases (major intrinsic protein family)
    COG06973344410Permeases of the drug/metabolite transporter superfamily
    COG07381010200Fucose permease
    COG11294400011ABC-type sugar (aldose) transport system, ATPase component
    COG11341111011ABC-type polysaccharide/polyol phosphate transport system, ATPase component
    COG11722200200Ribose/xylose/arabinose/galactoside ABC-type transport systems, permease components
    COG11751181271655ABC-type sugar transport systems, permease components
    COG165314102010043Sugar-binding periplasmic proteins/domains
    COG16821111111ABC-type polysaccharide/polyol phosphate export systems, permease components
    COG18792200200Periplasmic sugar-binding proteins
    COG21821000011Maltose-binding periplasmic proteins/domains
    COG22111242012Na+/melibiose symporter and related transporters
    COG26100001400H+/gluconate symporter and related permeases
    COG28142221011Arabinose efflux permease
    COG38330000011ABC-type maltose transport systems, permease components
    COG38391121011ABC-type sugar transport systems, ATPase components
    COG42090031300ABC-type polysaccharide transport systems, permease components
    COG42131211311ABC-type xylose transport systems, periplasmic components
    COG42141200200ABC-type xylose transport systems, permease components
    COG49750000021Putative glucose uptake permease
    Subtotal937811461914341
PTS sugar transport system
    COG10801111100Phosphoenolpyruvate protein kinase (PTS system EI component in bacteria)
    COG21900010100Phosphotransferase system IIA components
    COG12631111100Phosphotransferase system IIC components, N-acetylglucosamine specific
    COG19251110100Phosphotransferase system, HPr-related proteins
    Subtotal3342400