CYB561D2 Gene

HGNC Family Cytochrome b561 (CYB561)
Name cytochrome b561 family, member D2
Description Enables heme binding activity and transmembrane monodehydroascorbate reductase activity. Involved in ascorbate homeostasis. Predicted to be located in vesicle. Predicted to be active in endoplasmic reticulum. [provided by Alliance of Genome Resources, Mar 2025]
Summary
{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\n CYB561D2 is a member of the cytochrome b561 protein family that plays a role in mediating electron transfer across membranes—a process fundamental for maintaining cellular redox balance, defending against oxidative stress, and responding to chemical challenges. In zebrafish, exposure to the toxic insecticide fipronil led to a dose‐dependent upregulation of CYB561D2 at both the mRNA and protein levels, occurring in parallel with a downregulation of miR‑155. Functional assays, including dual luciferase reporter experiments, confirmed that miR‑155 directly interacts with the 3′‑untranslated region of the CYB561D2 transcript, thereby acting as a negative regulator. This indicates that when miR‑155 levels drop, CYB561D2 is de‑repressed, potentially enhancing electron transfer processes that are critical for cellular defense mechanisms during conditions of chemical stress. In this context, CYB561D2 may contribute to the cell’s ability to regenerate protective antioxidants and to mitigate toxic insults, suggesting that its regulation by miR‑155 could serve both as a marker and a mediator of toxicological responses."}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": "\n "}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "Hannian Huang, Kai Zhang, Yongyong Zhou, et al. "}, {"type": "b", "children": [{"type": "t", "text": "MicroRNA-155 targets cyb561d2 in zebrafish in response to fipronil exposure."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "Environ Toxicol (2016)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1002/tox.22099"}], "href": "https://doi.org/10.1002/tox.22099"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "25532856"}], "href": "https://pubmed.ncbi.nlm.nih.gov/25532856"}]}]}]}
Synonyms 101F6, XXCOS-LUCA11.4, TSP10
Proteins C56D2_HUMAN
NCBI Gene ID 11068
API
Download Associations
Predicted Functions View CYB561D2's ARCHS4 Predicted Functions.
Co-expressed Genes View CYB561D2's ARCHS4 Predicted Functions.
Expression in Tissues and Cell Lines View CYB561D2's ARCHS4 Predicted Functions.

Functional Associations

CYB561D2 has 4,569 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 93 datasets.

Click the + buttons to view associations for CYB561D2 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 CYB561D2 gene relative to other tissues from the Allen Brain Atlas Adult Human Brain Tissue Gene Expression Profiles dataset.
Allen Brain Atlas Adult Mouse Brain Tissue Gene Expression Profiles tissues with high or low expression of CYB561D2 gene relative to other tissues from the Allen Brain Atlas Adult Mouse 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 CYB561D2 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 Microarray tissue samples with high or low expression of CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene relative to other cell types and tissues from the BioGPS Mouse Cell Type and Tissue Gene Expression Profiles dataset.
Carcinogenome Chemical Perturbation Carcinogenicity Signatures small molecule perturbations changing expression of CYB561D2 gene from the Carcinogenome Chemical Perturbation Carcinogenicity Signatures dataset.
CCLE Cell Line Gene CNV Profiles cell lines with high or low copy number of CYB561D2 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 CYB561D2 gene relative to other cell lines from the CCLE Cell Line Gene Expression Profiles dataset.
ChEA Transcription Factor Binding Site Profiles transcription factor binding site profiles with transcription factor binding evidence at the promoter of CYB561D2 gene from the CHEA Transcription Factor Binding Site Profiles dataset.
ChEA Transcription Factor Targets transcription factors binding the promoter of CYB561D2 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 CYB561D2 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 CYB561D2 gene from the CMAP Signatures of Differentially Expressed Genes for Small Molecules dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores cellular components containing CYB561D2 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.
COMPARTMENTS Curated Protein Localization Evidence Scores 2025 cellular components containing CYB561D2 protein from the COMPARTMENTS Curated Protein Localization Evidence Scores 2025 dataset.
COMPARTMENTS Experimental Protein Localization Evidence Scores cellular components containing CYB561D2 protein in low- or high-throughput protein localization assays from the COMPARTMENTS Experimental Protein Localization Evidence Scores dataset.
COMPARTMENTS Text-mining Protein Localization Evidence Scores 2025 cellular components co-occuring with CYB561D2 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 CYB561D2 gene relative to other cell lines from the COSMIC Cell Line Gene CNV Profiles dataset.
COSMIC Cell Line Gene Mutation Profiles cell lines with CYB561D2 gene mutations from the COSMIC Cell Line Gene Mutation Profiles dataset.
CTD Gene-Disease Associations diseases associated with CYB561D2 gene/protein from the curated CTD Gene-Disease Associations dataset.
DepMap CRISPR Gene Dependency cell lines with fitness changed by CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Disease Associations dataset.
DisGeNET Gene-Phenotype Associations phenotypes associated with CYB561D2 gene in GWAS and other genetic association datasets from the DisGeNET Gene-Phenoptype Associations dataset.
ENCODE Histone Modification Site Profiles histone modification site profiles with high histone modification abundance at CYB561D2 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 CYB561D2 gene from the ENCODE Transcription Factor Binding Site Profiles dataset.
ENCODE Transcription Factor Targets transcription factors binding the promoter of CYB561D2 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 CYB561D2 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 CYB561D2 gene relative to other cell lines from the GDSC Cell Line Gene Expression Profiles dataset.
GeneRIF Biological Term Annotations biological terms co-occuring with CYB561D2 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 CYB561D2 from the GeneSigDB Published Gene Signatures dataset.
GEO Signatures of Differentially Expressed Genes for Diseases disease perturbations changing expression of CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene from the GEO Signatures of Differentially Expressed Genes for Viral Infections dataset.
GO Biological Process Annotations 2015 biological processes involving CYB561D2 gene from the curated GO Biological Process Annotations 2015 dataset.
GO Cellular Component Annotations 2015 cellular components containing CYB561D2 protein from the curated GO Cellular Component Annotations 2015 dataset.
GO Cellular Component Annotations 2023 cellular components containing CYB561D2 protein from the curated GO Cellular Component Annotations 2023 dataset.
GO Cellular Component Annotations 2025 cellular components containing CYB561D2 protein from the curated GO Cellular Component Annotations 2025 dataset.
GO Molecular Function Annotations 2015 molecular functions performed by CYB561D2 gene from the curated GO Molecular Function Annotations 2015 dataset.
GO Molecular Function Annotations 2023 molecular functions performed by CYB561D2 gene from the curated GO Molecular Function Annotations 2023 dataset.
GO Molecular Function Annotations 2025 molecular functions performed by CYB561D2 gene from the curated GO Molecular Function Annotations 2025 dataset.
GTEx Tissue Gene Expression Profiles tissues with high or low expression of CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene relative to other tissue samples from the GTEx Tissue-Specific Aging Signatures dataset.
GWAS Catalog SNP-Phenotype Associations 2025 phenotypes associated with CYB561D2 gene in GWAS datasets from the GWAS Catalog SNP-Phenotype Associations 2025 dataset.
Heiser et al., PNAS, 2011 Cell Line Gene Expression Profiles cell lines with high or low expression of CYB561D2 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 CYB561D2 protein from the curated HMDB Metabolites of Enzymes dataset.
HPA Cell Line Gene Expression Profiles cell lines with high or low expression of CYB561D2 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 CYB561D2 gene relative to other tissues from the HPA Tissue Gene Expression Profiles dataset.
HPA Tissue Protein Expression Profiles tissues with high or low expression of CYB561D2 protein relative to other tissues from the HPA Tissue Protein Expression Profiles dataset.
HPA Tissue Sample Gene Expression Profiles tissue samples with high or low expression of CYB561D2 gene relative to other tissue samples from the HPA Tissue Sample Gene Expression Profiles dataset.
IMPC Knockout Mouse Phenotypes phenotypes of mice caused by CYB561D2 gene knockout from the IMPC Knockout Mouse Phenotypes dataset.
InterPro Predicted Protein Domain Annotations protein domains predicted for CYB561D2 protein from the InterPro Predicted Protein Domain Annotations dataset.
JASPAR Predicted Human Transcription Factor Targets 2025 transcription factors regulating expression of CYB561D2 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 CYB561D2 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Mouse Transcription Factor Targets 2025 dataset.
JASPAR Predicted Transcription Factor Targets transcription factors regulating expression of CYB561D2 gene predicted using known transcription factor binding site motifs from the JASPAR Predicted Transcription Factor Targets dataset.
Klijn et al., Nat. Biotechnol., 2015 Cell Line Gene CNV Profiles cell lines with high or low copy number of CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene from the LINCS L1000 CMAP Chemical Perturbations Consensus Signatures dataset.
LINCS L1000 CMAP CRISPR Knockout Consensus Signatures gene perturbations changing expression of CYB561D2 gene from the LINCS L1000 CMAP CRISPR Knockout Consensus Signatures dataset.
MGI Mouse Phenotype Associations 2023 phenotypes of transgenic mice caused by CYB561D2 gene mutations from the MGI Mouse Phenotype Associations 2023 dataset.
MiRTarBase microRNA Targets microRNAs targeting CYB561D2 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 CYB561D2 gene predicted using known transcription factor binding site motifs from the MotifMap Predicted Transcription Factor Targets dataset.
MSigDB Signatures of Differentially Expressed Genes for Cancer Gene Perturbations gene perturbations changing expression of CYB561D2 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 CYB561D2 gene from the NIBR DRUG-seq U2OS MoA Box dataset.
Pathway Commons Protein-Protein Interactions interacting proteins for CYB561D2 from the Pathway Commons Protein-Protein Interactions dataset.
PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations gene perturbations changing expression of CYB561D2 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 CYB561D2 gene from the PerturbAtlas Signatures of Differentially Expressed Genes for Gene Perturbations dataset.
Replogle et al., Cell, 2022 K562 Essential Perturb-seq Gene Perturbation Signatures gene perturbations changing expression of CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 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 CYB561D2 gene from the Roadmap Epigenomics Histone Modification Site Profiles dataset.
RummaGEO Drug Perturbation Signatures drug perturbations changing expression of CYB561D2 gene from the RummaGEO Drug Perturbation Signatures dataset.
RummaGEO Gene Perturbation Signatures gene perturbations changing expression of CYB561D2 gene from the RummaGEO Gene Perturbation Signatures dataset.
TargetScan Predicted Conserved microRNA Targets microRNAs regulating expression of CYB561D2 gene predicted using conserved miRNA seed sequences from the TargetScan Predicted Conserved microRNA Targets dataset.
TargetScan Predicted Nonconserved microRNA Targets microRNAs regulating expression of CYB561D2 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 CYB561D2 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 CYB561D2 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores dataset.
TISSUES Curated Tissue Protein Expression Evidence Scores 2025 tissues with high expression of CYB561D2 protein from the TISSUES Curated Tissue Protein Expression Evidence Scores 2025 dataset.
TISSUES Experimental Tissue Protein Expression Evidence Scores tissues with high expression of CYB561D2 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 CYB561D2 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 CYB561D2 protein in abstracts of biomedical publications from the TISSUES Text-mining Tissue Protein Expression Evidence Scores 2025 dataset.