CIDEA
Lipid transferase CIDEA
Also known as: CIDE-A, CIDEA_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O60543
- Gene
- CIDEA
- Ensembl
- ENSG00000176194
- Chromosome
- 18
- Canonical length
- 219 aa
- Protein class
- Disease related genes, Predicted intracellular proteins
- Quaternary structure
- Homodimer
OverviewNCBI Gene
This gene encodes the homolog of the mouse protein Cidea that has been shown to activate apoptosis. This activation of apoptosis is inhibited by the DNA fragmentation factor DFF45 but not by caspase inhibitors. Mice that lack functional Cidea have higher metabolic rates, higher lipolysis in brown adipose tissue and higher core body temperatures when subjected to cold. These mice are also resistant to diet-induced obesity and diabetes. This suggests that in mice this gene product plays a role in thermogenesis and lipolysis. Alternatively spliced transcripts have been identified. [provided by RefSeq, Aug 2010]
Canonical amino-acid sequenceUniProt
219 residues, UniProt reviewed canonical sequence.
>O60543|CIDEA
1 MEAARDYAGA LIRPLTFMGS QTKRVLFTPL MHPARPFRVS NHDRSSRRGV MASSLQELIS
61 KTLDALVIAT GLVTLVLEED GTVVDTEEFF QTLGDNTHFM ILEKGQKWMP GSQHVPTCSP
121 PKRSGIARVT FDLYRLNPKD FIGCLNVKAT MYEMYSVSYD IRCTGLKGLL RSLLRFLSYS
181 AQVTGQFLIY LGTYMLRVLD DKEERPSLRS QAKGRFTCGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CIDEA can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.47
- Highest tissue expression
- 208 nTPM
Expression across tissuesHPA
Tissue
- adipose tissue: 208 nTPM
- breast: 139 nTPM
- blood vessel: 19 nTPM
- skin: 11 nTPM
- cervix: 7.1 nTPM
- vagina: 5.5 nTPM
Single-cell type
- breast lactating cells: 3,481 nCPM
- adipocytes: 217 nCPM
- esophageal apical cells: 140 nCPM
- esophageal suprabasal cells: 16 nCPM
- late spermatids: 7.9 nCPM
- melanocytes: 4.3 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- cerebral cortex: 4.4 nTPM
- basal ganglia: 3.4 nTPM
- white matter: 3.1 nTPM
- cerebellum: 2.5 nTPM
- pons: 2.3 nTPM
- medulla oblongata: 1.5 nTPM
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 1.71
- gnomAD pLI
- 0
- gnomAD missense Z
- -0.24
- DepMap mean gene effect
- 0
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- apoptotic process
- cellular response to cold
- fat cell differentiation
- lipid droplet fusion
- lipid metabolic process
- lipid storage
- negative regulation of cold-induced thermogenesis
- negative regulation of cytokine production
- negative regulation of execution phase of apoptosis
- negative regulation of lipid catabolic process
- negative regulation of transforming growth factor beta receptor signaling pathway
- negative regulation of tumor necrosis factor production
- regulation of apoptotic DNA fragmentation
- response to stilbenoid
- temperature homeostasis
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- CIDE-N domain
- CIDE-N domain
- Lipid transferase CIDEA, N-terminal
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CIDEA in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CIDEA as an antibody target. Whether an autoantibody or antibody against CIDEA could matter depends on whether native CIDEA is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CIDEA is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label CIDEA as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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