Taxonomic group: plant / Streptophyta
(Phylum: Streptophyta)
Organ / tissue: leaf
NCBI PubMed ID: 8039178Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Department of Biochemistry and Molecular Biology, Georgetown University Medical School, Washington, D.C. 20007
Two water-soluble polysaccharide fractions, WSTP-IA and WSTP-IB were purified from the leaves of Tridax procumbens Linn. with graded ethanol precipitation followed by mild delignification and size-exclusion chromatography. WSTP-IA contained L-Araf and D-Galp in approximately 1:3 molar proportions, and WSTP-IB contained only D-Galp as the major sugar component. The results of methylation linkage analysis, and 1H and 13C NMR studies on the native and modified polysaccharides, indicated that WSTP-IA is an L-arabino-D-galactan with a β-(1→6)-D-galactan main chain in which at least one in every two D-Galp residues carries single residues of either L-Araf (α-/β-) or β-D-Galp end-group as substituents at O-3. WSTP-IB is a linear β-(1→6)-D-galactan. This is the first report of polysaccharides containing a β-(1→6)-D-galactan main chain isolated from plant sources.
Structure type: polymer chemical repeating unit
Location inside paper: WSTP-IB
Contained glycoepitopes: IEDB_136044,IEDB_137472,IEDB_141794,IEDB_153201,IEDB_156489,IEDB_156493,IEDB_156557,IEDB_190606,SB_165,SB_166,SB_187,SB_195,SB_7,SB_88
NCBI Taxonomy refs (TaxIDs): 318066Reference(s) to other database(s): GTC:G69386QK, CCSD:
6322, CBank-STR:9836
Show glycosyltransferases
There is only one chemically distinct structure:
Found 
report error