Prediction of the structure of a novel amylopectin-based Cd-associated molecule in the stem of common reed grown in the presence of Cd.
We previously found a novel Cd-associated molecule with an apparent molecular weight of 10-50 kDa in common reeds grown in the presence of Cd. The partial structure of this molecule was predicted by enzymatic digestion to release Cd from a trace amount that had been partially purified from the cell sap. The major component was branched α-glucan, whereas a peptide, β-1,4 glucan, and mannose were found as minor components. Uronic acids appeared to provide functional groups that bind Cd.
a Department of Applied Biology and Chemistry , Tokyo University of Agriculture , Tokyo , Japan.
Kyoko
K
Higuchi
a Department of Applied Biology and Chemistry , Tokyo University of Agriculture , Tokyo , Japan.
Naho
N
Ito
b Department of Fermentation Science , Tokyo University of Agriculture , Tokyo , Japan.
Tomoo
T
Nukada
D000687:Amylopectin / Q000737:chemistry / Q000378:metabolism*; D002104:Cadmium / Q000378:metabolism* / Q000633:toxicity; D004785:Environmental Pollutants / Q000378:metabolism* / Q000633:toxicity; D008970:Molecular Weight; D018547:Plant Stems / Q000378:metabolism*; D006109:Poaceae / Q000187:drug effects / Q000254:growth & development* / Q000378:metabolism*; D011134:Polysaccharides / Q000737:chemistry / Q000378:metabolism; D014574:Uronic Acids / Q000378:metabolism
D004785:Environmental Pollutants; D011134:Polysaccharides; D014574:Uronic Acids; D002104:Cadmium; D000687:Amylopectin
cadmium; common reed; detoxification; glucan; polysaccharide