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izvor podataka: crosbi

Determination of Mammillaria gracillis N-glycan patterns by ESI Q-TOF mass spectrometry (CROSBI ID 115339)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Balen, Biljana ; Zamfir, Alina ; Vakhrushev, Sergey ; Krsnik-Rasol, Marijana ; Peter-Katalinić, Jasna Determination of Mammillaria gracillis N-glycan patterns by ESI Q-TOF mass spectrometry // Croatica chemica acta, 78 (2005), 463-477-x

Podaci o odgovornosti

Balen, Biljana ; Zamfir, Alina ; Vakhrushev, Sergey ; Krsnik-Rasol, Marijana ; Peter-Katalinić, Jasna

engleski

Determination of Mammillaria gracillis N-glycan patterns by ESI Q-TOF mass spectrometry

N-glycans detached from the 42 kDa cellular glycoprotein of in vitro propagated cactus (Mammillaria gracillis Pfeiff.) shoots, callus, hyperhydric regenerants and TW tumour were analysed by mass spectrometry after in-gel deglycosylation of excised protein band. Mixtures of N-glycans were shown by electrospray MS analysis to be highly complex and heterogenous. Only a low amount of high-mannose N-glycans was present, while the majority of structures were of the complex-type N-glycans. In the shoot sample a single N-glycan structure was observed, which appeared to be in good correlation with our previous results. In the callus and tumour tissue similarities of assigned structures were revealed while the highest number of different oligosaccharide structures was found in the hyperhydric regenerant. The presence of sialic acid as a constituent of N-glycans has been indicated by lectin staining, ion exchange chromatography and molecular mapping by mass spectrometry, and could be correlated to the differentiation status of tissues. Results obtained in this study indicate that different morphological levels can be correlated to the N-glycan composition of cellular glycoproteins.

Cactaceae; crown-gall tumour; morphogenesis; N-glycans; sialic acid

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Podaci o izdanju

78

2005.

463-477-x

objavljeno

0011-1643

Povezanost rada

Biologija

Indeksiranost