title: Revised structure of the repeating unit of the O-specific polysaccharide from Azospirillum lipoferum strain SpBr17.
abstract: A neutral O-polysaccharide liberated by mild acid hydrolysis of a lipopolysaccharide isolated from Azospirillum lipoferum SpBr17 was investigated using 1D and 2D (1)H and (13)C NMR spectroscopy, including HSQC, HMBC, and NOESY as well as SDS-PAGE electrophoresis along with sugar and methylation analyses. The structure of the O-specific polysaccharide repeating unit was established as follows: [Formula: see text]. The presented structure is a revised version of the formula that was published earlier in the Abstracts of the 9th International Congress on Nitrogen Fixation in Cancun (Mexico, 1992).
authors.affiliation: Department of Genetics and Microbiology, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland. achoma@hektor.umcs.lublin.pl
authors.forename: Adam
authors.initials: A
authors.lastname: Choma
authors.forename: Iwona
authors.initials: I
authors.lastname: Komaniecka
authors.forename: Pawel
authors.initials: P
authors.lastname: Sowinski