Abstract:
:A polysaccharide was isolated from the sheath of a sheathed bacterium, Sphaerotilus natans. The sheath polysaccharide (SPS) was composed of D-glucose and D-(N-acetyl)galactosamine in molar ratios of 1:4. Methylation linkage analysis revealed the presence of the residues of 4-linked glucose, 4-linked (N-acetyl)galactosamine, and 3-linked (N-acetyl)galactosamine in molar ratios of 1:3:1. The oligomer of SPS was prepared with an SPS-specific degrading enzyme from a sheath-degrading bacterium, Paenibacillus koleovorans. The oligomer was derivatized and subjected to fast atom bombardment-mass spectrometry to investigate the monosaccharide sequence of SPS. The structure of SPS was confirmed by nuclear magnetic resonance. The resulting data showed that SPS is a straight-chained basic polysaccharide constructed of a pentasaccharide repeating unit.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Takeda M,Nakamori T,Hatta M,Yamada H,Koizumi Jdoi
10.1016/j.ijbiomac.2003.08.008keywords:
subject
Has Abstractpub_date
2003-12-01 00:00:00pages
245-50issue
4-5eissn
0141-8130issn
1879-0003pii
S0141813003001107journal_volume
33pub_type
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