Abstract

Complete 1H and 13C-nuclear magnetic resonance assignments have been obtained for the octasaccharide repeating units of the bacterial polysaccharide succinoglycan from Rhizobium meliloti Rm1021 and Agrobacterium radiobacter NCIB 11883. The assignments were used to determine the locations of the O-succinyl and O-acetyl substituents. The O-acetyl substituent in Rm1021 was attached to the 3rd residue from the reducing end, and the O-succinyl group was attached to the 7th residue in both octasaccharides. The structure of the Rm1021 octasaccharide is as shown below: Pyr → 6 4 β Glc p ( 1 → 3 ) β G Suc ↓ 6 l c p ( 1 → 3 ) β Glc p ( 1 → 6 ) β Glc p ( 1 → 6 ) β Glc p ( 1 → 4 ) β G Ac ↓ 6 l c p ( 1 → 4 ) β Glc p ( 1 → 3 ) Gal p A small amount of succinate was also attached to C6 of the 6th residue in both octasaccharides.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.