ClpS is a small protein, usually encoded immediately upstream of ClpA in the genomes of proteobacteria. Recent results show that it is a molecular adaptor for substrate recognition by ClpA in Escherichia coli. We analyzed ClpS by bioinformatic methods and found that ClpS homologs are also found in organisms that lack ClpA, such as actinobacteria, cyanobacteria, and plant chloroplasts. Furthermore, ClpS is homologous to a domain in the eukaryotic E3 ubiquitin ligase, N-recognin. This domain has previously been described as responsible for the recognition of type 2 N-end rule substrates. Despite very low levels of sequence similarity to proteins of known structure, there appears to be substantial structural similarity between ClpS and the C-terminal domain of ribosomal protein L7/12 (1CTF).
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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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