Tone-Shimokawa Y, Toida T, Kawashima T
Biochemical Research Laboratory, Morinaga Milk Industry Co., Ltd., Kanagawa, Japan.
J Bacteriol. 1996 Jan;178(1):317-20. doi: 10.1128/jb.178.1.317-320.1996.
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.
我们从婴儿双歧杆菌罗伊氏亚种ATCC 15697中分离出细胞壁多糖（PS-1和PS-2），发现PS-2的主链为-->3)-β-D-半乳糖-(1-->3)-α-D-半乳糖-(1-->，其中β-D-半乳糖和α-D-半乳糖在O-6位被β-D-葡萄糖部分取代。这是首次报道在革兰氏阳性细菌中存在这种二糖主链；它类似于某些细菌的O抗原。
