Cohesins hold sister chromatids together from DNA replication until they are segregated. Although cohesins Smc1, Smc3, and Scc1/Rad21 are involved in chromatid cohesion and other cellular processes, little is known about the other mitotic cohesin subunit, Scc3/STAG. Here we describe STAG/Scc3, which may act as a transcriptional co-activator. STAG2 is able to enhance the activity of the tumor necrosis factor alpha, the CD69, and the human immunodeficiency virus long terminal repeat promoters in a NF-kappaB-dependent manner. In addition, STAG2 interacts with the viral transactivator Tat and enhances the Tat-mediated activation of the human immunodeficiency virus long terminal repeat promoter. Moreover, STAG2 co-activates a multimeric NF-kappaB reporter construct and enhances the activity of the transactivation domain of p65/RelA in a Gal4 system. This function is dependent on one of the LXXLL co-activation motives present in this cohesin and is substantiated by the interaction of STAG2 with the p65 subunit of NF-kappaB. These results describe a novel activity for cohesins, suggesting a role for STAG/Scc3 in transcriptional regulation.
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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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