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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 1, Number 3
BKCSDE 1(3)
March 20, 1980

Title	Spectroscopic Studies on Cu2+ and Ca2+ Binding with Glycosaminoglycans
Author	Joo W. Park, C. Mukherjee
Keywords
Abstract	A general spectroscopic method is described for studies on the complex formation between metal ions and ligands, and is applied to Cu2+ and Ca2+ binding to glycosaminoglycans. The order of binding constants for both ions is heparin > dermatan sulfate > chondroitin sulfate. The electrostatic forces are shown to be the predominant factor in the interaction. The 2- to 3-fold higher affinity for Cu2+ than for Ca2+ is obtained for heparin and dermatan sulfate, but little difference for chondroitin sulfate. These results are explained as chelation of both carboxyl and sulfate groups to Cu2+ in former cases. The difference of binding constants among glycosaminoglycans is related to proposed various biological functions of the biopolymers.
Page	83 - 87
Full Text	PDF

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