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Taxonomic group: plant / Streptophyta (Phylum: Streptophyta)
Organ / tissue: seed

The structure was elucidated in this paper
Publication DOI: 10.1016/S0040-4039(98)00655-8
Journal NLM ID: 2984819R
Publisher: Elsevier
Correspondence: Ceriotti A <alce

icm.mi.cnr.it>
Institutions: Istituto Biosintesi Vegetali, Milano, Italy, Dipartimento di Scienze Molecolari Agroalimentari, Milano, Italy

Post-source decay (PSD) fragment analyses by MALDI-TOFMS were applied to the characterization of two analogous structure isomers of xyloglucan octasaccharides (XXLGol and XLXGol) from Tamarind seed. Almost all possible fragment ions were detected by a mutli-site cleavage at the glycosidic linkages. The same fragment ions were observed in their spectra, but the relative intensities of some of the ions differed greatly. The detailed investigation of the relative intensities of the fragment ions enabled definitely to distinguish the analogous structure isomers of the highly branched octasaccharides.

carbohydrate, mass spectrometry, isomer, Plants

Structure type: oligomer
Location inside paper: p. 4051, scheme 1, XXLGol
Trivial name: XXLG
Compound class: N-glycan, oligosaccharide, xyloglucan
Contained glycoepitopes: IEDB_114701,IEDB_136044,IEDB_137472,IEDB_141794,IEDB_142488,IEDB_146664,IEDB_190606,IEDB_983931,SB_165,SB_166,SB_187,SB_192,SB_195,SB_7,SB_88

Methods: MALDI-TOF MS, MALDI-PSD MS, MALDI-TOF-MS

Related record ID(s): 61125
NCBI Taxonomy refs (TaxIDs): 58860
Reference(s) to other database(s): GTC:G18071YH, CCSD:17576, CBank-STR:16692
Show glycosyltransferases

There is only one chemically distinct structure:

OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O[C@@H]1O[C@H](CO[C@H]2OC[C@@H](O)[C@H](O)[C@H]2O[C@@H]2O[C@H](CO)[C@H](O)[C@H](O)[C@H]2O)[C@@H](O[C@@H]2O[C@H](CO[C@H]3OC[C@@H](O)[C@H](O)[C@H]3O)[C@@H](O[C@@H]3O[C@H](CO[C@H]4OC[C@@H](O)[C@H](O)[C@H]4O)[C@@H](O)[C@H](O)[C@H]3O)[C@H](O)[C@H]2O)[C@H](O)[C@H]1O

SVG MW SMILES 3D mol Ionize