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. 1985 Jul 15;41(7):928-9.
doi: 10.1007/BF01970017.

Transfer of oligosaccharide from oligosaccharide pyrophosphoryl dolichol to endogenous acceptor proteins in human breast malignant and normal tissues

A R Santa Cruz, A Baldi

Transfer of oligosaccharide from oligosaccharide pyrophosphoryl dolichol to endogenous acceptor proteins in human breast malignant and normal tissues

A R Santa Cruz et al. Experientia. .

Abstract

We have prepared dolichylpyrophosphoryl-[14C]-oligosaccharide (Dol-PP-oligosaccharide) from calf thyroid. Microsomal fractions from human breast tissues catalyzed the transfer of labeled oligosaccharide to endogenous acceptor proteins. Malignant tumors showed higher activity of the oligosaccharide transferring enzyme than normal tissue. With kojibiose (Kj), an inhibitor of (Glc3)-glucosidase, an increase in the radioactivity associated with glycoprotein was observed.

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