We have cloned the first glucose transporter CaHGT1 (Candida albicans high-affinity glucose transporter) of a pathogenic yeast, Candida albicans. The DNA sequence (GenBank accession number Y16834) analysis revealed an ORF encoding a novel protein of 545 amino acids with a predicted molecular mass of 60.67 kDa. The putative protein with 12 transmembrane domains has 51% identity with Kluyveromyces lactis high-affinity glucose transporter, HGT1. The protein signatures which are conserved and distinctive of the sugar transporters belonging to the major facilitator superfamily (MFS) were also found in CaHgt1p. When heterologously expressed, the ORF functionally complemented a mutant strain of Saccharomyces cerevisiae RE700A which was deleted in seven hexose transporter genes and thus was unable to grow or transport glucose. The expression of CaHGT1 in C. albicans showed a transcript of 1.6 kb which was enhanced in response to the human steroid hormone progesterone. Interestingly, the transcript levels were also enhanced in the presence of drugs, e.g. cycloheximide, chloramphenicol and benomyl. The results suggest that CaHGT1, which encodes a MFS protein, could be linked to the drug resistance phenomenon in C. albicans.
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Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
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Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
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Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
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Site | Modification | Modifier | Source | Reference |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
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Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
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Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
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Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
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