ATP6V0E1 Gene

HGNC Family ATPases
Name ATPase, H+ transporting, lysosomal 9kDa, V0 subunit e1
Description This gene encodes a component of vacuolar ATPase (V-ATPase), a multisubunit enzyme that mediates acidification of eukaryotic intracellular organelles. V-ATPase dependent organelle acidification is necessary for such intracellular processes as protein sorting, zymogen activation, receptor-mediated endocytosis, and synaptic vesicle proton gradient generation. V-ATPase is composed of a cytosolic V1 domain and a transmembrane V0 domain. The V1 domain consists of three A and three B subunits, two G subunits plus the C, D, E, F, and H subunits. The V1 domain contains the ATP catalytic site. The V0 domain consists of five different subunits: a, c, c', c`, and d. Additional isoforms of many of the V1 and V0 subunit proteins are encoded by multiple genes or alternatively spliced transcript variants. This encoded protein is possibly part of the V0 subunit. Since two nontranscribed pseudogenes have been found in dog, it is possible that the localization to chromosome 2 for this gene by radiation hybrid mapping is representing a pseudogene. Genomic mapping puts the chromosomal location on 5q35.3. [provided by RefSeq, Jul 2008]
Summary
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n ATP6V0E1 encodes the integral subunit “e” of the vacuolar‐ATPase (V‐ATPase) complex, a key proton pump that acidifies intracellular compartments such as lysosomes. This acidification is critical for cellular processes including protein degradation, autophagy, and metabolic homeostasis. In cancer cells, maintenance of V‐ATPase activity appears essential for survival, and repression of ATP6V0E1 can mimic tumor‐suppressive effects. For example, in pancreatic ductal adenocarcinoma cells, overexpression of microRNA‑431–5p reduced ATP6V0E1 levels, and knockdown of ATP6V0E1 recapitulated the reduction in cell viability observed with miRNA overexpression."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": " Similarly, in esophageal squamous cell carcinoma and head and neck squamous cell carcinoma, ATP6V0E1 was among a group of hub genes whose expression levels were associated with patient survival, suggesting that ATP6V0E1 may serve as a prognostic marker in these cancers."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "2"}]}, {"type": "t", "text": "\n "}]}, {"type": "t", "text": "\n "}, {"type": "p", "children": [{"type": "t", "text": "\n Overall, the findings indicate that ATP6V0E1 plays a pivotal role in regulating lysosomal function and cellular metabolism by contributing to the proton transport activity of the V‐ATPase complex. Disruption of ATP6V0E1 function appears to interfere with the acidification process, thereby impacting autophagy and survival signaling pathways in tumor cells, and highlighting its potential as a target for therapeutic intervention.\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Øyvind P Haugen, Cuong Khuu, Hanne M Weidemann, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Transcriptomic and functional studies reveal miR-431-5p as a tumour suppressor in pancreatic ductal adenocarcinoma cells."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Gene (2022)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1016/j.gene.2022.146346"}], "href": "https://doi.org/10.1016/j.gene.2022.146346"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "35182679"}], "href": "https://pubmed.ncbi.nlm.nih.gov/35182679"}]}, {"type": "r", "ref": 2, "children": [{"type": "t", "text": "Donghu Yu, Xiaolan Ruan, Jingyu Huang, et al. "}, {"type": "b", "children": [{"type": "t", "text": "Comprehensive Analysis of Competitive Endogenous RNAs Network, Being Associated With Esophageal Squamous Cell Carcinoma and Its Emerging Role in Head and Neck Squamous Cell Carcinoma."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Front Oncol (2020)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.3389/fonc.2019.01474"}], "href": "https://doi.org/10.3389/fonc.2019.01474"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "32038997"}], "href": "https://pubmed.ncbi.nlm.nih.gov/32038997"}]}]}]}
Synonyms ATP6H, VMA21P, Vma21, ATP6V0E, M9.2
Proteins VA0E1_HUMAN
NCBI Gene ID 8992
API
Download Associations
Predicted Functions View ATP6V0E1's ARCHS4 Predicted Functions.
Co-expressed Genes View ATP6V0E1's ARCHS4 Predicted Functions.
Expression in Tissues and Cell Lines View ATP6V0E1's ARCHS4 Predicted Functions.

Functional Associations

ATP6V0E1 has 7,042 functional associations with biological entities spanning 8 categories (molecular profile, organism, chemical, functional term, phrase or reference, disease, phenotype or trait, structural feature, cell line, cell type or tissue, gene, protein or microRNA) extracted from 100 datasets.

Click the + buttons to view associations for ATP6V0E1 from the datasets below.

If available, associations are ranked by standardized value

Dataset Summary
Achilles Cell Line Gene Essentiality Profiles cell lines with fitness changed by ATP6V0E1 gene knockdown relative to other cell lines from the Achilles Cell Line Gene Essentiality Profiles dataset.
Allen Brain Atlas Adult Human Brain Tissue Gene Expression Profiles tissues with high or low expression of ATP6V0E1 gene relative to other tissues from the Allen Brain Atlas Adult Human Brain Tissue Gene Expression Profiles dataset.
Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by Microarray tissue samples with high or low expression of ATP6V0E1 gene relative to other tissue samples from the Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by Microarray dataset.
Allen Brain Atlas Developing Human Brain Tissue Gene Expression Profiles by RNA-seq tissue samples with high or low expression of ATP6V0E1 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 ATP6V0E1 gene relative to other tissues from the Allen Brain Atlas Prenatal Human Brain Tissue Gene Expression Profiles dataset.
BioGPS Cell Line Gene Expression Profiles cell lines with high or low expression of ATP6V0E1 gene relative to other cell lines from the BioGPS Cell Line Gene Expression Profiles dataset.
BioGPS Human Cell Type and Tissue Gene Expression Profiles cell types and tissues with high or low expression of ATP6V0E1 gene relative to other cell types and tissues from the BioGPS Human Cell Type and Tissue Gene Expression Profiles dataset.
BioGPS Mouse Cell Type and Tissue Gene Expression Profiles cell types and tissues with high or low expression of ATP6V0E1 gene relative to other cell types and tissues from the BioGPS Mouse Cell Type and Tissue Gene Expression Profiles dataset.
CCLE Cell Line Gene CNV Profiles cell lines with high or low copy number of ATP6V0E1 gene relative to other cell lines from the CCLE Cell Line Gene CNV Profiles dataset.
CCLE Cell Line Gene Expression Profiles cell lines with high or low expression of ATP6V0E1 gene relative to other cell lines from the CCLE Cell Line Gene Expression Profiles dataset.
CellMarker Gene-Cell Type Associations cell types associated with ATP6V0E1 gene from the CellMarker Gene-Cell Type Associations dataset.
ChEA Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of ATP6V0E1 gene from the CHEA Transcription Factor Binding Site Profiles dataset.
ChEA Transcription Factor Targets transcription factors binding the promoter of ATP6V0E1 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets dataset.
ChEA Transcription Factor Targets 2022 transcription factors binding the promoter of ATP6V0E1 gene in low- or high-throughput transcription factor functional studies from the CHEA Transcription Factor Targets 2022 dataset.
CMAP Signatures of Differentially Expressed Genes for Small Molecules small molecule perturbations changing expression of ATP6V0E1 gene from the CMAP Signatures of Differentially Expressed Genes for Small Molecules dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores cellular components containing ATP6V0E1 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores 2025 cellular components containing ATP6V0E1 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset.
COMPARTMENTS Text-mining Protein Localization Evidence Scores cellular components co-occuring with ATP6V0E1 protein in abstracts of biomedical publications from the COMPARTMENTS Text-mining Protein Localization Evidence Scores dataset.
COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 cellular components co-occuring with ATP6V0E1 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 ATP6V0E1 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset.
COSMIC Cell Line Gene Mutation Profiles cell lines with ATP6V0E1 gene mutations from the COSMIC Cell Line Gene Mutation Profiles dataset.
CTD Gene-Disease Associations diseases associated with ATP6V0E1 gene/protein from the curated CTD Gene-Disease Associations dataset.
DepMap CRISPR Gene Dependency cell lines with fitness changed by ATP6V0E1 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 ATP6V0E1 gene in GWAS datasets from the DISEASES Experimental Gene-Disease Assocation Evidence Scores 2025 dataset.
DISEASES Text-mining Gene-Disease Association Evidence Scores diseases co-occuring with ATP6V0E1 gene in abstracts of biomedical publications from the DISEASES Text-mining Gene-Disease Assocation Evidence Scores dataset.
DISEASES Text-mining Gene-Disease Association Evidence Scores 2025 diseases co-occuring with ATP6V0E1 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 ATP6V0E1 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Disease Associations dataset.
ENCODE Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at ATP6V0E1 gene from the ENCODE Histone Modification Site Profiles dataset.
ENCODE Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of ATP6V0E1 gene from the ENCODE Transcription Factor Binding Site Profiles dataset.
ENCODE Transcription Factor Targets transcription factors binding the promoter of ATP6V0E1 gene in ChIP-seq datasets from the ENCODE Transcription Factor Targets dataset.
ESCAPE Omics Signatures of Genes and Proteins for Stem Cells PubMedIDs of publications reporting gene signatures containing ATP6V0E1 from the ESCAPE Omics Signatures of Genes and Proteins for Stem Cells dataset.
GDSC Cell Line Gene Expression Profiles cell lines with high or low expression of ATP6V0E1 gene relative to other cell lines from the GDSC Cell Line Gene Expression Profiles dataset.
GeneRIF Biological Term Annotations biological terms co-occuring with ATP6V0E1 gene in literature-supported statements describing functions of genes from the GeneRIF Biological Term Annotations dataset.
GeneSigDB Published Gene Signatures PubMedIDs of publications reporting gene signatures containing ATP6V0E1 from the GeneSigDB Published Gene Signatures dataset.
GEO Signatures of Differentially Expressed Genes for Diseases disease perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Diseases dataset.
GEO Signatures of Differentially Expressed Genes for Gene Perturbations gene perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Gene Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Kinase Perturbations kinase perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Kinase Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Small Molecules small molecule perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Small Molecules dataset.
GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations transcription factor perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Transcription Factor Perturbations dataset.
GEO Signatures of Differentially Expressed Genes for Viral Infections virus perturbations changing expression of ATP6V0E1 gene from the GEO Signatures of Differentially Expressed Genes for Viral Infections dataset.
GlyGen Glycosylated Proteins ligands (chemical) binding ATP6V0E1 protein from the GlyGen Glycosylated Proteins dataset.
GO Biological Process Annotations 2015 biological processes involving ATP6V0E1 gene from the curated GO Biological Process Annotations 2015 dataset.
GO Biological Process Annotations 2023 biological processes involving ATP6V0E1 gene from the curated GO Biological Process Annotations 2023 dataset.
GO Biological Process Annotations 2025 biological processes involving ATP6V0E1 gene from the curated GO Biological Process Annotations2025 dataset.
GO Cellular Component Annotations 2015 cellular components containing ATP6V0E1 protein from the curated GO Cellular Component Annotations 2015 dataset.
GO Cellular Component Annotations 2023 cellular components containing ATP6V0E1 protein from the curated GO Cellular Component Annotations 2023 dataset.
GO Cellular Component Annotations 2025 cellular components containing ATP6V0E1 protein from the curated GO Cellular Component Annotations 2025 dataset.
GO Molecular Function Annotations 2015 molecular functions performed by ATP6V0E1 gene from the curated GO Molecular Function Annotations 2015 dataset.
GO Molecular Function Annotations 2023 molecular functions performed by ATP6V0E1 gene from the curated GO Molecular Function Annotations 2023 dataset.
GO Molecular Function Annotations 2025 molecular functions performed by ATP6V0E1 gene from the curated GO Molecular Function Annotations 2025 dataset.
GTEx Tissue Gene Expression Profiles tissues with high or low expression of ATP6V0E1 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 ATP6V0E1 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 ATP6V0E1 gene relative to other tissue samples from the GTEx Tissue Sample Gene Expression Profiles dataset.
Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles cell lines with high or low expression of ATP6V0E1 gene relative to other cell lines from the Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles dataset.
HMDB Metabolites of Enzymes interacting metabolites for ATP6V0E1 protein from the curated HMDB Metabolites of Enzymes dataset.
HPA Cell Line Gene Expression Profiles cell lines with high or low expression of ATP6V0E1 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 ATP6V0E1 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 ATP6V0E1 gene relative to other tissue samples from the HPA Tissue Sample Gene Expression Profiles dataset.
InterPro Predicted Protein Domain Annotations protein domains predicted for ATP6V0E1 protein from the InterPro Predicted Protein Domain Annotations dataset.
JASPAR Predicted Transcription Factor Targets transcription factors regulating expression of ATP6V0E1 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Transcription Factor Targets dataset.
KEGG Pathways pathways involving ATP6V0E1 protein from the KEGG Pathways dataset.
Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles cell lines with high or low copy number of ATP6V0E1 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 ATP6V0E1 gene relative to other cell lines from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene Expression Profiles dataset.
Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene Mutation Profiles cell lines with ATP6V0E1 gene mutations from the Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene Mutation Profiles dataset.
KnockTF Gene Expression Profiles with Transcription Factor Perturbations transcription factor perturbations changing expression of ATP6V0E1 gene from the KnockTF Gene Expression Profiles with Transcription Factor Perturbations dataset.
LINCS L1000 CMAP Chemical Perturbation Consensus Signatures small molecule perturbations changing expression of ATP6V0E1 gene from the LINCS L1000 CMAP Chemical Perturbations Consensus Signatures dataset.
LINCS L1000 CMAP CRISPR Knockout Consensus Signatures gene perturbations changing expression of ATP6V0E1 gene from the LINCS L1000 CMAP CRISPR Knockout Consensus Signatures dataset.
LINCS L1000 CMAP Signatures of Differentially Expressed Genes for Small Molecules small molecule perturbations changing expression of ATP6V0E1 gene from the LINCS L1000 CMAP Signatures of Differentially Expressed Genes for Small Molecules dataset.
LOCATE Curated Protein Localization Annotations cellular components containing ATP6V0E1 protein in low- or high-throughput protein localization assays from the LOCATE Curated Protein Localization Annotations dataset.
LOCATE Predicted Protein Localization Annotations cellular components predicted to contain ATP6V0E1 protein from the LOCATE Predicted Protein Localization Annotations dataset.
MiRTarBase microRNA Targets microRNAs targeting ATP6V0E1 gene in low- or high-throughput microRNA targeting studies from the MiRTarBase microRNA Targets dataset.
MotifMap Predicted Transcription Factor Targets transcription factors regulating expression of ATP6V0E1 gene predicted using known transcription factor binding site motifs from the MotifMap Predicted Transcription Factor Targets dataset.
MoTrPAC Rat Endurance Exercise Training tissue samples with high or low expression of ATP6V0E1 gene relative to other tissue samples from the MoTrPAC Rat Endurance Exercise Training dataset.
MSigDB Cancer Gene Co-expression Modules co-expressed genes for ATP6V0E1 from the MSigDB Cancer Gene Co-expression Modules dataset.
MSigDB Signatures of Differentially Expressed Genes for Cancer Gene Perturbations gene perturbations changing expression of ATP6V0E1 gene from the MSigDB Signatures of Differentially Expressed Genes for Cancer Gene Perturbations dataset.
NIBR DRUG-seq U2OS MoA Box Gene Expression Profiles drug perturbations changing expression of ATP6V0E1 gene from the NIBR DRUG-seq U2OS MoA Box dataset.
Pathway Commons Protein-Protein Interactions interacting proteins for ATP6V0E1 from the Pathway Commons Protein-Protein Interactions dataset.
PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations gene perturbations changing expression of ATP6V0E1 gene from the PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations dataset.
PerturbAtlas Signatures of Differentially Expressed Genes for Mouse Gene Perturbations gene perturbations changing expression of ATP6V0E1 gene from the PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations dataset.
PFOCR Pathway Figure Associations 2024 pathways involving ATP6V0E1 protein from the Wikipathways PFOCR 2024 dataset.
Reactome Pathways 2014 pathways involving ATP6V0E1 protein from the Reactome Pathways dataset.
Reactome Pathways 2024 pathways involving ATP6V0E1 protein from the Reactome Pathways 2024 dataset.
Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures gene perturbations changing expression of ATP6V0E1 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 ATP6V0E1 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 ATP6V0E1 gene from the Replogle et al., Cell, 2022 RPE1 Essential Perturb-seq Gene Perturbation Signatures dataset.
Roadmap Epigenomics Cell and Tissue Gene Expression Profiles cell types and tissues with high or low expression of ATP6V0E1 gene relative to other cell types and tissues from the Roadmap Epigenomics Cell and Tissue Gene Expression Profiles dataset.
Roadmap Epigenomics Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at ATP6V0E1 gene from the Roadmap Epigenomics Histone Modification Site Profiles dataset.
RummaGEO Drug Perturbation Signatures drug perturbations changing expression of ATP6V0E1 gene from the RummaGEO Drug Perturbation Signatures dataset.
RummaGEO Gene Perturbation Signatures gene perturbations changing expression of ATP6V0E1 gene from the RummaGEO Gene Perturbation Signatures dataset.
TargetScan Predicted Conserved microRNA Targets microRNAs regulating expression of ATP6V0E1 gene predicted using conserved miRNA seed sequences from the TargetScan Predicted Conserved microRNA Targets dataset.
TargetScan Predicted Nonconserved microRNA Targets microRNAs regulating expression of ATP6V0E1 gene predicted using nonconserved miRNA seed sequences from the TargetScan Predicted Nonconserved microRNA Targets dataset.
TCGA Signatures of Differentially Expressed Genes for Tumors tissue samples with high or low expression of ATP6V0E1 gene relative to other tissue samples from the TCGA Signatures of Differentially Expressed Genes for Tumors dataset.
TISSUES Curated Tissue Protein Expression Evidence Scores tissues with high expression of ATP6V0E1 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores dataset.
TISSUES Curated Tissue Protein Expression Evidence Scores 2025 tissues with high expression of ATP6V0E1 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores 2025 dataset.
TISSUES Experimental Tissue Protein Expression Evidence Scores tissues with high expression of ATP6V0E1 protein in proteomics datasets from the TISSUES Experimental Tissue Protein Expression Evidence Scores dataset.
TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 tissues with high expression of ATP6V0E1 protein in proteomics datasets from the TISSUES Experimental Tissue Protein Expression Evidence Scores 2025 dataset.
TISSUES Text-mining Tissue Protein Expression Evidence Scores tissues co-occuring with ATP6V0E1 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores dataset.
TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 tissues co-occuring with ATP6V0E1 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset.
WikiPathways Pathways 2014 pathways involving ATP6V0E1 protein from the Wikipathways Pathways 2014 dataset.
WikiPathways Pathways 2024 pathways involving ATP6V0E1 protein from the WikiPathways Pathways 2024 dataset.