Presence of
-d-Mannsidic Linkage in Glycoproteins
LIBERATION OF d-MANNOSE FROM VARIOUS GLYCOPROTEINS BY
-MANNOSIDASE ISOLATED FROM JACK BEAN MEAL
Yu-Teh Li 1
From the
1 From the Department of Biochemistry, University of Oklahoma School of Medicine, Oklahoma City, Oklahoma 73104
An
-mannosidase which is able to hydrolyze a naturally occurring
-mannoside, yeast mannan, and several synthetic
-d-mannosides was isolated from jack bean meal. This enzyme was used to explore the linkage of mannose in several glycoproteins. The
-mannosidase was shown to liberate mannose from ovomucoid, orosomucoid, ovalbumin, and glycopeptide prepared from ovalbumin, suggesting the presence of
-mannosidic linkage in these glycoproteins.
Submitted on November 15, 1965