The rapamycin.FKBP12 complex inhibits target of rapamycin (TOR) kinase in TORC1. We screened the yeast nonessential gene deletion collection to identify mutants that conferred rapamycin resistance, and we identified PMR1, encoding the Golgi Ca2+/Mn2+ -ATPase. Deleting PMR1 in two genetic backgrounds confers rapamycin resistance. Epistasis analyses show that Pmr1 functions upstream from Npr1 and Gln-3 in opposition to Lst8, a regulator of TOR. Npr1 kinase is largely cytoplasmic, and a portion localizes to the Golgi where amino acid permeases are modified and sorted. Nuclear translocation of Gln-3 and Gln-3 reporter activity in pmr1 cells are impaired, but expression of functional Gap1 in the plasma membrane of a pmr1 strain in response to nitrogen limitation is enhanced. These two phenotypes suggest up-regulation of Npr1 function in the absence of Pmr1. Together, our results establish that Pmr1-dependent Ca2+ and/or Mn2+ ion homeostasis is necessary for TOR signaling.
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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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| Evidence ID | Analyze ID | File | Description |
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