A cDNA encoding a putative copper chaperone protein, CUC-1, was cloned from Caenorhabditis elegans. CUC-1 had the characteristic motifs of MTCXXC and KKTGK, and showed 49.3 and 39.1% sequence identity with yeast Atx1p and human HAH1, respectively. Expression of CUC-1 cDNA complemented a null atx1 mutant, the yeast copper chaperone gene, thus demonstrating that CUC-1 is a functional copper chaperone. Studies with transgenic worms indicated that cuc-1 and cua-1, which encodes the copper transporting ATPase, are expressed together in intestinal cells of adult and hypodermal cells in the larvae. cua-1 was also expressed in pharyngeal muscle but cuc-1 was not. These results suggest that CUC-1 and CUA-1 constitute a copper trafficking pathway similar to the yeast counterparts in intestinal and hypodermal cells, and CUA-1 may have a different function in pharyngeal muscle.
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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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