Title : Production, purification and characterization of recombinant yeast processing alpha 1,2-mannosidase.

Pub. Date : 1994 Oct

PMID : 7881184






7 Functional Relationships(s)
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1 Using oligosaccharide substrate (Glc1Man9GlcNAc or Man9GlcNAc), the medium of cells transformed with this plasmid showed an increase in alpha-mannosidase activity that was directly related to the increase in cell density, whereas no alpha-mannosidase activity was detected in cells transformed with vector alone. Oligosaccharides alpha-mannosidase Saccharomyces cerevisiae S288C
2 Using oligosaccharide substrate (Glc1Man9GlcNAc or Man9GlcNAc), the medium of cells transformed with this plasmid showed an increase in alpha-mannosidase activity that was directly related to the increase in cell density, whereas no alpha-mannosidase activity was detected in cells transformed with vector alone. Oligosaccharides alpha-mannosidase Saccharomyces cerevisiae S288C
3 Using oligosaccharide substrate (Glc1Man9GlcNAc or Man9GlcNAc), the medium of cells transformed with this plasmid showed an increase in alpha-mannosidase activity that was directly related to the increase in cell density, whereas no alpha-mannosidase activity was detected in cells transformed with vector alone. glc1man9glcnac alpha-mannosidase Saccharomyces cerevisiae S288C
4 Using oligosaccharide substrate (Glc1Man9GlcNAc or Man9GlcNAc), the medium of cells transformed with this plasmid showed an increase in alpha-mannosidase activity that was directly related to the increase in cell density, whereas no alpha-mannosidase activity was detected in cells transformed with vector alone. mannosyl(9)-N-acetylglucosamine alpha-mannosidase Saccharomyces cerevisiae S288C
5 Using oligosaccharide substrate (Glc1Man9GlcNAc or Man9GlcNAc), the medium of cells transformed with this plasmid showed an increase in alpha-mannosidase activity that was directly related to the increase in cell density, whereas no alpha-mannosidase activity was detected in cells transformed with vector alone. mannosyl(9)-N-acetylglucosamine alpha-mannosidase Saccharomyces cerevisiae S288C
6 SDS-PAGE of the medium showed the presence of a doublet of 63 and 60 kDa that was revealed by Coomassie Blue staining and by Western blotting with antibodies to the endogenous solubilized alpha-mannosidase. Sodium Dodecyl Sulfate alpha-mannosidase Saccharomyces cerevisiae S288C
7 The recombinant alpha-mannosidase was present in the medium at a level of approximately 1 mg/l and was purified in a single step by chromatography on S-Sepharose. Sepharose alpha-mannosidase Saccharomyces cerevisiae S288C