P. Cescutti et al., DETERMINATION OF THE SIZE AND DEGREE OF ACETYL SUBSTITUTION OF OLIGOSACCHARIDES FROM NEISSERIA-MENINGITIDIS GROUP-A BY LONSPRAY MASS-SPECTROMETRY, Biochemical and biophysical research communications, 224(2), 1996, pp. 444-450
The capsular polysaccharide produced by Neisseria meningitidis group A
has the following structure: [GRAPHICS] This polysaccharide was parti
ally hydrolysed with acetic acid, and the oligomers obtained were sepa
rated by fast performance liquid chromatography. Six fractions were co
llected and characterised by ionspray mass spectrometry in the positiv
e ion mode. This soft ionisation technique established the size of the
obtained oligosaccharides and the degree of O-acetyl substitution for
each fraction. (C) 1996 Academic Press, Inc.