Isolation and structural analysis of polysaccharide containing galactofuranose from the cell walls of Bifidobacterium infantis.
We isolated cell wall polysaccharides (PS-1 and PS-2) from Bifidobacterium infantis Reuter ATCC 15697 and found that the backbone of PS-2 is-->3)-beta-D-Galf-(1-->3)-alpha-D-Galp- (1-->in which beta-D-Galf and alpha-D-Galp are partially substituted at O-6 with beta-D-Glcp. This is the first report of the presence of this disaccharide backbone in a gram-positive bacterium; it resembles the O antigen of some bacteria.
Tone-Shimokawa
Y
Y
Biochemical Research Laboratory, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan.
Toida
T
T
Kawashima
T
T
D001644:Bifidobacterium / Q000737:chemistry*; D002240:Carbohydrate Sequence; D002473:Cell Wall / Q000737:chemistry; D004187:Disaccharides / Q000032:analysis* / Q000737:chemistry; D005685:Galactans / Q000737:chemistry; D005690:Galactose / Q000032:analysis* / Q000737:chemistry; D005944:Glucosamine / Q000032:analysis; D005947:Glucose / Q000032:analysis; D008969:Molecular Sequence Data; D009112:Muramic Acids / Q000032:analysis; D011135:Polysaccharides, Bacterial / Q000737:chemistry / Q000302:isolation & purification*
D004187:Disaccharides; D005685:Galactans; D009112:Muramic Acids; D011135:Polysaccharides, Bacterial; D005947:Glucose; D005944:Glucosamine; D005690:Galactose