| Name | shugoshin 1 |
| Description | The protein encoded by this gene is a member of the shugoshin family of proteins. This protein is thought to protect centromeric cohesin from cleavage during mitotic prophase by preventing phosphorylation of a cohesin subunit. Reduced expression of this gene leads to the premature loss of centromeric cohesion, mis-segregation of sister chromatids, and mitotic arrest. Evidence suggests that this protein also protects a small subset of cohesin found along the length of the chromosome arms during mitotic prophase. An isoform lacking exon 6 has been shown to play a role in the cohesion of centrioles (PMID: 16582621 and PMID:18331714). Mutations in this gene have been associated with Chronic Atrial and Intestinal Dysrhythmia (CAID) syndrome, characterized by the co-occurrence of Sick Sinus Syndrome (SSS) and Chronic Intestinal Pseudo-obstruction (CIPO) within the first four decades of life (PMID:25282101). Fibroblast cells from CAID patients exhibited both increased cell proliferation and higher rates of senescence. Pseudogenes of this gene have been found on chromosomes 1 and 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2015] |
| Summary |
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nShugoshin‐1 (SGO1) is a pivotal guardian of sister chromatid cohesion during both mitosis and meiosis. It acts principally to protect centromeric cohesin from premature phosphorylation and removal, thereby ensuring accurate chromosome segregation. SGO1 achieves this by recruiting and interacting with protein phosphatase 2A (PP2A) to counteract cohesin‐destabilizing kinases, and its function is regulated via phosphorylation‐dependent mechanisms involving Bub1‐mediated histone H2A modifications. Furthermore, timely degradation of SGO1 via the anaphase‐promoting complex (APC/C) is essential for the transition from metaphase to anaphase, underscoring its critical role in cell cycle progression."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "7"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nBeyond its central role in cohesion protection, SGO1 orchestrates proper kinetochore–microtubule attachments and tension sensing. Its activities are fine‐tuned by multiple kinases – including Aurora B, Polo‐like kinase 1 (Plk1), and NEK2A – which phosphorylate SGO1 to modulate its localization between inner centromeres and kinetochores. Alternative splice forms of SGO1 further specialize its function, with certain isoforms localizing to centrosomes to secure centriole cohesion. In addition, chromatin remodelers (for example, RSF1 via HDAC1 recruitment) and the SET oncoprotein regulate the SGO1–cohesin interaction, thereby controlling the timely release of cohesion at anaphase."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "8", "end_ref": "15"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nDysregulation of SGO1 has been implicated in a spectrum of disease states, including various cancers and congenital syndromes. Aberrant expression, mutation, and alternative splicing of SGO1 (or its gene SGOL1) have been linked to chromosome missegregation, aneuploidy, and consequent tumor progression in colorectal, lung, gastric, and renal cancers. Moreover, dominant-negative peptides and altered interactions with regulatory proteins such as CIP2A or long noncoding RNAs further highlight its role in oncogenesis and multidrug resistance. Notably, a deleterious missense mutation in SGO1 (K23E) underlies Chronic Atrial and Intestinal Dysrhythmia (CAID) syndrome by impairing its interaction with key ion-channel regulators (e.g. HCN4), thereby perturbing cardiac pacemaking. Collectively, these studies emphasize that both canonical and noncanonical functions of SGO1 – from safeguarding centromeric integrity and modulating kinetochore attachments to participating in tissue‐specific processes – are critical for maintaining genomic stability and proper cellular function."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "16", "end_ref": "33"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Zhanyun Tang, Yuxiao Sun, Sara E Harley, et al. 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| NCBI Gene ID | 151648 |
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| Download Associations | |
| Predicted Functions |
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| Expression in Tissues and Cell Lines |
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SGO1 has 2,050 functional associations with biological entities spanning 5 categories (disease, phenotype or trait, functional term, phrase or reference, chemical, cell line, cell type or tissue, gene, protein or microRNA) extracted from 41 datasets.
Click the + buttons to view associations for SGO1 from the datasets below.
If available, associations are ranked by standardized value
| Dataset | Summary | |
|---|---|---|
| Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles | tissue samples with high or low expression of SGO1 gene relative to other tissue samples from the Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles dataset. | |
| CCLE Cell Line Proteomics | Cell lines associated with SGO1 protein from the CCLE Cell Line Proteomics dataset. | |
| CellMarker Gene-Cell Type Associations | cell types associated with SGO1 gene from the CellMarker Gene-Cell Type Associations dataset. | |
| ChEA Transcription Factor Targets 2022 | transcription factors binding the promoter of SGO1 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets 2022 dataset. | |
| ClinVar Gene-Phenotype Associations 2025 | phenotypes associated with SGO1 gene from the curated ClinVar Gene-Phenotype Associations 2025 dataset. | |
| CM4AI KOLF21J CRISPRi Gene Perturbation Atlas | gene perturbations changing expression of SGO1 gene from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas dataset. | |
| CM4AI U2OS Cell Map Protein Localization Assemblies | assemblies containing SGO1 protein from integrated AP-MS and IF data from the CM4AI U2OS Cell Map Protein Localization Assemblies dataset. | |
| COMPARTMENTS Curated Protein Localization Evidence Scores 2025 | cellular components containing SGO1 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset. | |
| COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 | cellular components co-occuring with SGO1 protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset. | |
| DeepCoverMOA Drug Mechanisms of Action | small molecule perturbations with high or low expression of SGO1 protein relative to other small molecule perturbations from the DeepCoverMOA Drug Mechanisms of Action dataset. | |
| DISEASES Curated Gene-Disease Association Evidence Scores 2025 | diseases involving SGO1 gene from the DISEASES Curated Gene-Disease Association Evidence Scores 2025 dataset. | |
| DISEASES Experimental Gene-Disease Association Evidence Scores 2025 | diseases associated with SGO1 gene in GWAS datasets from the DISEASES Experimental Gene-Disease Assocation Evidence Scores 2025 dataset. | |
| DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 | diseases co-occuring with SGO1 gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores 2025 dataset. | |
| DisGeNET Gene-Disease Associations | diseases associated with SGO1 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Disease Associations dataset. | |
| DisGeNET Gene-Phenotype Associations | phenotypes associated with SGO1 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Phenoptype Associations dataset. | |
| GO Biological Process Annotations 2023 | biological processes involving SGO1 gene from the curated GO Biological Process Annotations 2023 dataset. | |
| GO Biological Process Annotations 2025 | biological processes involving SGO1 gene from the curated GO Biological Process Annotations2025 dataset. | |
| GO Cellular Component Annotations 2023 | cellular components containing SGO1 protein from the curated GO Cellular Component Annotations 2023 dataset. | |
| GO Cellular Component Annotations 2025 | cellular components containing SGO1 protein from the curated GO Cellular Component Annotations 2025 dataset. | |
| GO Molecular Function Annotations 2023 | molecular functions performed by SGO1 gene from the curated GO Molecular Function Annotations 2023 dataset. | |
| GO Molecular Function Annotations 2025 | molecular functions performed by SGO1 gene from the curated GO Molecular Function Annotations 2025 dataset. | |
| GTEx Tissue Gene Expression Profiles 2023 | tissues with high or low expression of SGO1 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles 2023 dataset. | |
| GWAS Catalog SNP-Phenotype Associations 2025 | phenotypes associated with SGO1 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset. | |
| JASPAR Predicted Human Transcription Factor Targets 2025 | transcription factors regulating expression of SGO1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Human Transcription Factor Targets dataset. | |
| JASPAR Predicted Mouse Transcription Factor Targets 2025 | transcription factors regulating expression of SGO1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Mouse Transcription Factor Targets 2025 dataset. | |
| KEGG Pathways 2026 | pathways involving SGO1 protein from the KEGG Pathways 2026 dataset. | |
| MGI Mouse Phenotype Associations 2023 | phenotypes of transgenic mice caused by SGO1 gene mutations from the MGI Mouse Phenotype Associations 2023 dataset. | |
| NIBR DRUG-seq U2OS MoA Box Gene Expression Profiles | drug perturbations changing expression of SGO1 gene from the NIBR DRUG-seq U2OS MoA Box dataset. | |
| PFOCR Pathway Figure Associations 2024 | pathways involving SGO1 protein from the Wikipathways PFOCR 2024 dataset. | |
| Reactome Pathways 2024 | pathways involving SGO1 protein from the Reactome Pathways 2024 dataset. | |
| Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of SGO1 gene from the Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures dataset. | |
| Replogle et al., Cell, 2022 K562 Genome-wide Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of SGO1 gene from the Replogle et al., Cell, 2022 K562 Genome-wide Perturb-seq Gene Perturbation Signatures dataset. | |
| Replogle et al., Cell, 2022 RPE1 Essential Perturb-seq Gene Perturbation Signatures | gene perturbations changing expression of SGO1 gene from the Replogle et al., Cell, 2022 RPE1 Essential Perturb-seq Gene Perturbation Signatures dataset. | |
| Rummagene Transcription Factor Associations 2026 | transcription factors regulating expression of SGO1 gene from the Rummagene Transcription Factor Associations 2026 dataset. | |
| RummaGEO Drug Perturbation Signatures | drug perturbations changing expression of SGO1 gene from the RummaGEO Drug Perturbation Signatures dataset. | |
| RummaGEO Gene Perturbation Signatures | gene perturbations changing expression of SGO1 gene from the RummaGEO Gene Perturbation Signatures dataset. | |
| Sci-Plex Drug Perturbation Signatures | drug perturbations changing expression of SGO1 gene from the Sci-Plex Drug Perturbation Signatures dataset. | |
| TISSUES Curated Tissue Protein Expression Evidence Scores 2025 | tissues with high expression of SGO1 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores 2025 dataset. | |
| TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 | tissues with high expression of SGO1 protein in proteomics datasets from the TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 dataset. | |
| TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 | tissues co-occuring with SGO1 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset. | |
| WikiPathways Pathways 2024 | pathways involving SGO1 protein from the WikiPathways Pathways 2024 dataset. | |