Functional expression of the human CHIP28 water channel in a yeast secretory mutant

FEBS Lett. 1995 Oct 16;373(3):269-74. doi: 10.1016/0014-5793(95)01060-r.

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

  • 4-Chloromercuribenzenesulfonate / pharmacology
  • Aquaporin 1
  • Aquaporins*
  • Base Sequence
  • Blood Group Antigens
  • Cytoplasmic Granules / metabolism
  • Cytoplasmic Granules / ultrastructure
  • Fluorescent Antibody Technique
  • Freeze Fracturing
  • Humans
  • Ion Channels / analysis
  • Ion Channels / genetics*
  • Ion Channels / metabolism
  • Kinetics
  • Microscopy, Electron
  • Molecular Sequence Data
  • Mutation
  • Osmolar Concentration
  • Recombinant Proteins
  • Saccharomyces cerevisiae / genetics*
  • Saccharomyces cerevisiae / metabolism
  • Sorbitol / pharmacology
  • Temperature
  • Transformation, Genetic
  • Water / metabolism

Substances

  • AQP1 protein, human
  • Aquaporins
  • Blood Group Antigens
  • Ion Channels
  • Recombinant Proteins
  • Water
  • Aquaporin 1
  • Sorbitol
  • 4-Chloromercuribenzenesulfonate