Abstract
The temperature-sensitive Saccharomyces cerevisiae mutant strain NY17, deficient in the secretory pathway (sec6-4 mutation), is used for the heterologous expression of the human CHIP28 water channel. After a heat-shock, the protein is present in partially purified post-golgi secretory vesicles. Immunodetection and water transport studies, directly made on the vesicles, showed that CHIP28 is highly expressed and active in the yeast membranes.
MeSH terms
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4-Chloromercuribenzenesulfonate / pharmacology
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Aquaporin 1
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Aquaporins*
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Base Sequence
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Blood Group Antigens
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Cytoplasmic Granules / metabolism
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Cytoplasmic Granules / ultrastructure
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Fluorescent Antibody Technique
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Freeze Fracturing
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Humans
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Ion Channels / analysis
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Ion Channels / genetics*
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Ion Channels / metabolism
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Kinetics
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Microscopy, Electron
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Molecular Sequence Data
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Mutation
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Osmolar Concentration
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Recombinant Proteins
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Saccharomyces cerevisiae / genetics*
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Saccharomyces cerevisiae / metabolism
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Sorbitol / pharmacology
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Temperature
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Transformation, Genetic
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Water / metabolism
Substances
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AQP1 protein, human
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Aquaporins
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Blood Group Antigens
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Ion Channels
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Recombinant Proteins
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Water
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Aquaporin 1
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Sorbitol
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4-Chloromercuribenzenesulfonate