| Name | small lysine-rich protein 1 |
| Summary |
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nSMKR1 plays a central role in regulating the actomyosin cytoskeleton by controlling contractile forces, cell polarity, and the dynamics of focal adhesions. Its motor activity and ability to assemble into filaments govern processes such as cell spreading, directional migration, cytokinesis, and membrane ruffling. In many cell types, SMKR1 maintains a delicate balance between forces generated by actomyosin contraction and microtubule dynamics, serving not only as a negative regulator of cell migration but also as a modulator of adhesion turnover and cytoplasmic coherence. This dual function is manifested through its interactions with upstream regulators such as Rho/ROCK, Rac1 and through phosphorylation events that alter its filament stability and subcellular localization."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "1", "end_ref": "15"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nIn specialized cells, SMKR1 has been implicated in processes critical for maintaining systemic homeostasis. In megakaryocytes and platelets, for example, it regulates proplatelet formation, platelet contractility, and integrin outside‐in signaling—functions that underpin normal hemostasis and whose disruption leads to macrothrombocytopenia and defective clot retraction. In podocytes and other epithelial cells, SMKR1 activity supports the proper organization of the cortical actin cytoskeleton, influencing filtration barrier integrity and contributing to the susceptibility of glomerular diseases. In addition, SMKR1 modulates immune cell behaviors such as T cell migration and neutrophil trafficking by organizing adhesion complexes and coordinating rapid, localized contractile forces."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "16", "end_ref": "30"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nSMKR1 dysfunction is tightly linked to diverse pathological states and developmental defects. Aberrant regulation of its activity contributes to cancer progression and metastasis via effects on focal adhesion assembly and enhanced cellular invasion. In osteoclasts, temporal modulation of SMKR1 levels governs precursor fusion and bone resorption. Furthermore, in the kidney and inner ear, mutations that impair SMKR1 function are associated with glomerular abnormalities, hearing loss, and other developmental defects, underscoring its indispensable role in organogenesis and tissue homeostasis. Finally, by integrating signals from extracellular cues and modulating downstream pathways like those involving DAP12/Syk and Rac1, SMKR1 emerges as a pivotal modulator of both inflammatory responses and angiogenic processes."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "31", "end_ref": "40"}]}, {"type": "t", "text": "\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Anand N Mhatre, Jiang Li, Yuil Kim, et al. 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| Proteins | SMKR1_HUMAN |
| NCBI Gene ID | 100287482 |
| API | |
| Download Associations | |
| Predicted Functions |
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| Co-expressed Genes |
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| Expression in Tissues and Cell Lines |
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SMKR1 has 2,118 functional associations with biological entities spanning 6 categories (functional term, phrase or reference, disease, phenotype or trait, chemical, cell line, cell type or tissue, gene, protein or microRNA, sequence feature) extracted from 36 datasets.
Click the + buttons to view associations for SMKR1 from the datasets below.
If available, associations are ranked by standardized value
| Dataset | Summary | |
|---|---|---|
| Allen Brain Atlas Adult Human Brain Tissue Gene Expression Profiles | tissues with high or low expression of SMKR1 gene relative to other tissues from the Allen Brain Atlas Adult Human Brain Tissue Gene Expression Profiles dataset. | |
| Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles | tissue samples with high or low expression of SMKR1 gene relative to other tissue samples from the Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles dataset. | |
| Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by RNA-seq | tissue samples with high or low expression of SMKR1 gene relative to other tissue samples from the Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by RNA-seq dataset. | |
| Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles | tissues with high or low expression of SMKR1 gene relative to other tissues from the Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles dataset. | |
| CCLE Cell Line Gene CNV Profiles | cell lines with high or low copy number of SMKR1 gene relative to other cell lines from the CCLE Cell Line Gene CNV Profiles dataset. | |
| CellMarker Gene-Cell Type Associations | cell types associated with SMKR1 gene from the CellMarker Gene-Cell Type Associations dataset. | |
| CM4AI KOLF21J CRISPRi Gene Perturbation Atlas | gene perturbations changing expression of SMKR1 gene from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas dataset. | |
| COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 | cellular components co-occuring with SMKR1 protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset. | |
| COSMIC Cell Line Gene CNV Profiles | cell lines with high or low copy number of SMKR1 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset. | |
| DepMap CRISPR Gene Dependency | cell lines with fitness changed by SMKR1 gene knockdown relative to other cell lines from the DepMap CRISPR Gene Dependency dataset. | |
| DISEASES Experimental Gene-Disease Association Evidence Scores 2025 | diseases associated with SMKR1 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 SMKR1 gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores 2025 dataset. | |
| GEO Signatures of Differentially Expressed Genes for Gene Perturbations | gene perturbations changing expression of SMKR1 gene from the GEO Signatures of Differentially Expressed Genes for Gene Perturbations dataset. | |
| GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations | transcription factor perturbations changing expression of SMKR1 gene from the GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations dataset. | |
| GTEx eQTL 2025 | SNPs regulating expression of SMKR1 gene from the GTEx eQTL 2025 dataset. | |
| GTEx Tissue Gene Expression Profiles | tissues with high or low expression of SMKR1 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles dataset. | |
| GTEx Tissue Gene Expression Profiles 2023 | tissues with high or low expression of SMKR1 gene relative to other tissues from the GTEx Tissue Gene Expression Profiles 2023 dataset. | |
| GTEx Tissue Sample Gene Expression Profiles | tissue samples with high or low expression of SMKR1 gene relative to other tissue samples from the GTEx Tissue Sample Gene Expression Profiles dataset. | |
| GTEx Tissue-Specific Aging Signatures | tissue samples with high or low expression of SMKR1 gene relative to other tissue samples from the GTEx Tissue-Specific Aging Signatures dataset. | |
| GWAS Catalog SNP-Phenotype Associations 2025 | phenotypes associated with SMKR1 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset. | |
| HPA Cell Line Gene Expression Profiles | cell lines with high or low expression of SMKR1 gene relative to other cell lines from the HPA Cell Line Gene Expression Profiles dataset. | |
| HPA Tissue Gene Expression Profiles | tissues with high or low expression of SMKR1 gene relative to other tissues from the HPA Tissue Gene Expression Profiles dataset. | |
| HPA Tissue Sample Gene Expression Profiles | tissue samples with high or low expression of SMKR1 gene relative to other tissue samples from the HPA Tissue Sample Gene Expression Profiles dataset. | |
| JASPAR Predicted Human Transcription Factor Targets 2025 | transcription factors regulating expression of SMKR1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Human Transcription Factor Targets dataset. | |
| Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles | cell lines with high or low copy number of SMKR1 gene relative to other cell lines from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles dataset. | |
| Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene Expression Profiles | cell lines with high or low expression of SMKR1 gene relative to other cell lines from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene Expression Profiles dataset. | |
| MotifMap Predicted Transcription Factor Targets | transcription factors regulating expression of SMKR1 gene predicted using known transcription factor binding site motifs from the MotifMap Predicted Transcription Factor Targets dataset. | |
| PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations | gene perturbations changing expression of SMKR1 gene from the PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations dataset. | |
| Roadmap Epigenomics Cell and Tissue DNA Methylation Profiles | cell types and tissues with high or low DNA methylation of SMKR1 gene relative to other cell types and tissues from the Roadmap Epigenomics Cell and Tissue DNA Methylation Profiles dataset. | |
| Rummagene Transcription Factor Associations 2026 | transcription factors regulating expression of SMKR1 gene from the Rummagene Transcription Factor Associations 2026 dataset. | |
| RummaGEO Drug Perturbation Signatures | drug perturbations changing expression of SMKR1 gene from the RummaGEO Drug Perturbation Signatures dataset. | |
| RummaGEO Gene Perturbation Signatures | gene perturbations changing expression of SMKR1 gene from the RummaGEO Gene Perturbation Signatures dataset. | |
| Tabula Sapiens Gene-Cell Associations | cell types with high or low expression of SMKR1 gene relative to other cell types from the Tabula Sapiens Gene-Cell Associations dataset. | |
| TargetScan Predicted Conserved microRNA Targets | microRNAs regulating expression of SMKR1 gene predicted using conserved miRNA seed sequences from the TargetScan Predicted Conserved microRNA Targets dataset. | |
| TargetScan Predicted Nonconserved microRNA Targets | microRNAs regulating expression of SMKR1 gene predicted using nonconserved miRNA seed sequences from the TargetScan Predicted Nonconserved microRNA Targets dataset. | |
| TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 | tissues co-occuring with SMKR1 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset. | |