SELENOP Gene

Name selenoprotein P
Description This gene encodes a selenoprotein that is predominantly expressed in the liver and secreted into the plasma. This selenoprotein is unique in that it contains multiple selenocysteine (Sec) residues per polypeptide (10 in human), and accounts for most of the selenium in plasma. It has been implicated as an extracellular antioxidant, and in the transport of selenium to extra-hepatic tissues via apolipoprotein E receptor-2 (apoER2). Mice lacking this gene exhibit neurological dysfunction, suggesting its importance in normal brain function. Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. The mRNA for this selenoprotein contains two SECIS elements. The use of alternative polyadenylation sites, one located in between the two SECIS elements, results in two populations of mRNAs containing either both (predominant) or just the upstream SECIS element (PMID:27881738). Alternatively spliced transcript variants have also been found for this gene. [provided by RefSeq, Oct 2018]
Summary
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Elevated circulating levels impair insulin signaling, contribute to both insulin and exercise resistance, and are linked to disturbances in adipokine profiles—all of which have been reported in models of obesity and type 2 diabetes. Such metabolic derangements are thought to involve inhibition of AMP‐activated protein kinase activity and other downstream effects that exacerbate glucose intolerance."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "6", "end_ref": "17"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nGenetic polymorphisms affecting the SEPP1 gene and altered SELENOP concentrations have been linked to cancer risk and prognosis. Variants in SEPP1 influence selenium status and the functional integrity of antioxidant selenoenzymes, thereby modulating susceptibility to malignancies such as colorectal, prostate, and breast cancer. In several studies, changes in circulating SELENOP served as a potential biomarker indicative of tumor aggressiveness and poor clinical outcome."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "18", "end_ref": "26"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nSELENOP also contributes to neuroprotection and reproductive health. Its local expression in the brain ensures the delivery of selenium for the maintenance of selenoenzyme-based antioxidant defenses, which is critical for neuronal survival and may influence the pathogenesis of neurodegenerative diseases such as Parkinson’s and Alzheimer’s. In parallel, the presence of SELENOP in seminal plasma is essential for effective selenium transfer and the biosynthesis of key antioxidant enzymes in spermatozoa."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "27", "end_ref": "30"}, {"type": "fg_f", "ref": "5"}, {"type": "fg_f", "ref": "31"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nInflammatory mediators and stress signals are key regulators of SELENOP expression. Pro‐inflammatory cytokines, glucocorticoids, and oxidative stress encountered during conditions such as sepsis, pulmonary fibrosis, or inflammatory bowel disease can alter SEPP1 transcription. These dynamic changes suggest that SELENOP not only reflects the systemic selenium status but also actively participates in the acute‐phase response and tissue defense mechanisms."}, {"type": "fg", "children": [{"type": "fg_fs", "start_ref": "32", "end_ref": "36"}]}, {"type": "t", "text": "\n"}]}, {"type": "t", "text": "\n\n"}, {"type": "p", "children": [{"type": "t", "text": "\nRecent advances suggest that SELENOP expression can be modulated by nutritional factors and that novel, highly sensitive assays are now available for its quantification. Dietary components such as serine have been shown to enhance SELENOP (and related selenoenzyme) expression, and comprehensive biomarker assessments reveal significant sex‐specific differences and associations with metabolic syndrome even in pediatric populations. 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NCBI Gene ID 6414
API
Download Associations
Predicted Functions View SELENOP's ARCHS4 Predicted Functions.
Co-expressed Genes View SELENOP's ARCHS4 Predicted Functions.
Expression in Tissues and Cell Lines View SELENOP's ARCHS4 Predicted Functions.

Functional Associations

SELENOP has 4,351 functional associations with biological entities spanning 5 categories (chemical, functional term, phrase or reference, disease, phenotype or trait, cell line, cell type or tissue, gene, protein or microRNA) extracted from 36 datasets.

Click the + buttons to view associations for SELENOP 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 SELENOP gene relative to other tissue samples from the Allen Brain Atlas Aging Dementia and Traumatic Brain Injury Tissue Sample Gene Expression Profiles dataset.
Carcinogenome Chemical Perturbation Carcinogenicity Signatures small molecule perturbations changing expression of SELENOP gene from the Carcinogenome Chemical Perturbation Carcinogenicity Signatures dataset.
CellMarker Gene-Cell Type Associations cell types associated with SELENOP gene from the CellMarker Gene-Cell Type Associations dataset.
CM4AI KOLF21J CRISPRi Gene Perturbation Atlas gene perturbations changing expression of SELENOP gene from the CM4AI KOLF21J CRISPRi Gene Perturbation Atlas dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores 2025 cellular components containing SELENOP protein from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset.
COMPARTMENTS Experimental Protein Localization Evidence Scores 2025 cellular components containing SELENOP protein in low- or high-throughput protein localization assays from the COMPARTMENTS Experimental Protein Localization Evidence Scores 2025 dataset.
COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 cellular components co-occuring with SELENOP protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 dataset.
DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 diseases co-occuring with SELENOP gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores 2025 dataset.
GlyGen Glycosylated Proteins ligands (chemical) binding SELENOP protein from the GlyGen Glycosylated Proteins dataset.
GO Biological Process Annotations 2025 biological processes involving SELENOP gene from the curated GO Biological Process Annotations2025 dataset.
GO Cellular Component Annotations 2025 cellular components containing SELENOP protein from the curated GO Cellular Component Annotations 2025 dataset.
GO Molecular Function Annotations 2025 molecular functions performed by SELENOP gene from the curated GO Molecular Function Annotations 2025 dataset.
GTEx Tissue Gene Expression Profiles 2023 tissues with high or low expression of SELENOP gene relative to other tissues from the GTEx Tissue Gene Expression Profiles 2023 dataset.
GWAS Catalog SNP-Phenotype Associations 2025 phenotypes associated with SELENOP gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset.
HuBMAP ASCT+B Annotations cell types associated with SELENOP gene from the HuBMAP ASCT+B dataset.
HuBMAP ASCT+B Augmented with RNA-seq Coexpression cell types associated with SELENOP gene from the HuBMAP ASCT+B Augmented with RNA-seq Coexpression dataset.
HuBMAP Azimuth Cell Type Annotations cell types associated with SELENOP gene from the HuBMAP Azimuth Cell Type Annotations dataset.
JASPAR Predicted Human Transcription Factor Targets 2025 transcription factors regulating expression of SELENOP 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 SELENOP gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Mouse Transcription Factor Targets 2025 dataset.
KEGG Pathways 2026 pathways involving SELENOP protein from the KEGG Pathways 2026 dataset.
LINCS L1000 CMAP Chemical Perturbation Consensus Signatures small molecule perturbations changing expression of SELENOP gene from the LINCS L1000 CMAP Chemical Perturbations Consensus Signatures dataset.
MoTrPAC Rat Endurance Exercise Training tissue samples with high or low expression of SELENOP gene relative to other tissue samples from the MoTrPAC Rat Endurance Exercise Training dataset.
NIBR DRUG-seq U2OS MoA Box Gene Expression Profiles drug perturbations changing expression of SELENOP gene from the NIBR DRUG-seq U2OS MoA Box dataset.
PFOCR Pathway Figure Associations 2024 pathways involving SELENOP protein from the Wikipathways PFOCR 2024 dataset.
Reactome Pathways 2024 pathways involving SELENOP protein from the Reactome Pathways 2024 dataset.
Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures gene perturbations changing expression of SELENOP 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 SELENOP gene from the Replogle et al., Cell, 2022 K562 Genome-wide Perturb-seq Gene Perturbation Signatures dataset.
Rummagene Transcription Factor Associations 2026 transcription factors regulating expression of SELENOP gene from the Rummagene Transcription Factor Associations 2026 dataset.
RummaGEO Drug Perturbation Signatures drug perturbations changing expression of SELENOP gene from the RummaGEO Drug Perturbation Signatures dataset.
RummaGEO Gene Perturbation Signatures gene perturbations changing expression of SELENOP gene from the RummaGEO Gene Perturbation Signatures dataset.
Sci-Plex Drug Perturbation Signatures drug perturbations changing expression of SELENOP gene from the Sci-Plex Drug Perturbation Signatures dataset.
Tahoe Therapeutics Tahoe 100M Perturbation Atlas drug perturbations changing expression of SELENOP gene from the Tahoe Therapeutics Tahoe 100M Perturbation Atlas dataset.
TISSUES Curated Tissue Protein Expression Evidence Scores 2025 tissues with high expression of SELENOP 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 SELENOP 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 SELENOP protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset.
WikiPathways Pathways 2024 pathways involving SELENOP protein from the WikiPathways Pathways 2024 dataset.