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Details on Person UniProt:O60543 CIDEA

Class:IdReferenceGeneProduct:52078
_chainChangeLogchain:1-219 added on Fri February 6 2015
_displayNameUniProt:O60543 CIDEA
_timestamp2024-11-03 20:13:43
chainchain:1-219
checksum05F704823CE71C0E
commentFUNCTION Lipid transferase that promotes unilocular lipid droplet formation by mediating lipid droplet fusion (PubMed:19843876, PubMed:26118629). Lipid droplet fusion promotes their enlargement, restricting lipolysis and favoring lipid storage (PubMed:19843876). Localizes on the lipid droplet surface, at focal contact sites between lipid droplets, and mediates atypical lipid droplet fusion by promoting directional net neutral lipid transfer from the smaller to larger lipid droplets (By similarity). The transfer direction may be driven by the internal pressure difference between the contacting lipid droplet pair and occurs at a lower rate than that promoted by CIDEC (By similarity). May also act as a CEBPB coactivator in epithelial cells to control the expression of a subset of CEBPB downstream target genes, including ID2, IGF1, PRLR, SOCS1, SOCS3, XDH, but not casein (By similarity). By interacting with CEBPB, strengthens the association of CEBPB with the XDH promoter, increases histone acetylation and dissociates HDAC1 from the promoter (By similarity). When overexpressed, induces apoptosis; the physiological significance of its role in apoptosis is unclear (By similarity).CATALYTIC ACTIVITY a triacyl-sn-glycerol(in) = a triacyl-sn-glycerol(out)SUBUNIT Homodimer (PubMed:19843876). Interacts with CIDEC (PubMed:19843876). Directly interacts with CEBPB (By similarity). Interacts with isoform CLSTN3beta of CLSTN3; inhibiting the lipid transferase activity of CIDEA (By similarity).SUBCELLULAR LOCATION Enriched at lipid droplet contact sites.TISSUE SPECIFICITY Expressed in omental and subcutaneous adipose tissue (at protein level).DOMAIN The amphipathic helix mediates embedding into the lipid droplet phospholipid monolayer, promoting phosphatidic acid-binding, thereby facilitating triacylglycerol transfer.DOMAIN The CIDE-N domain is involved in homodimerization which is crucial for its function in promoting lipid exchange and transfer.DISEASE In omental and subcutaneous adipose tissue of obese patients matched for BMI, expression levels correlate with insulin sensitivity. Expression is increased 5-6 fold in the group of patients with high insulin sensitivity, compared to the insulin-resistant group. This observation is consistent with the idea that triglyceride storage in adipocytes plays an important role in sequestering triglycerides and fatty acids away from the circulation and peripheral tissues, thus enhancing insulin sensitivity in liver and muscle.SIMILARITY Belongs to the CIDE family.
descriptionrecommendedName: fullName evidence="10"Lipid transferase CIDEA alternativeName: fullName evidence="9"Cell death activator CIDE-A alternativeName: fullName evidence="10"Cell death-inducing DFFA-like effector A
geneNameCIDEA
identifierO60543
isSequenceChangedFALSE
keyword3D-structure
Activator
Apoptosis
Lipid droplet
Nucleus
Proteomics identification
Reference proteome
Transcription
Transcription regulation
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameCIDEA
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8991774] ENSEMBL:ENSG00000176194 CIDEA [Homo sapiens]
secondaryIdentifierCIDEA_HUMAN
B0YIY7
Q6UPR7
sequenceLength219
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:8856626] CIDEA [cytosol] [Homo sapiens]
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