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Details on Person UniProt:P25874 UCP1

Class:IdReferenceGeneProduct:66880
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-307 added on Fri February 6 2015
_displayNameUniProt:P25874 UCP1
_timestamp2024-11-03 20:17:19
chainchain:1-307
checksumBCC99AB27171FC67
commentFUNCTION Mitochondrial protein responsible for thermogenic respiration, a specialized capacity of brown adipose tissue and beige fat that participates in non-shivering adaptive thermogenesis to temperature and diet variations and more generally to the regulation of energy balance (By similarity). Functions as a long-chain fatty acid/LCFA and proton symporter, simultaneously transporting one LCFA and one proton through the inner mitochondrial membrane (PubMed:24196960, PubMed:28781081). However, LCFAs remaining associated with the transporter via their hydrophobic tails, it results in an apparent transport of protons activated by LCFAs. Thereby, dissipates the mitochondrial proton gradient and converts the energy of substrate oxydation into heat instead of ATP. Regulates the production of reactive oxygen species/ROS by mitochondria (By similarity).CATALYTIC ACTIVITY H(+)(in) = H(+)(out)ACTIVITY REGULATION Has no constitutive proton transporter activity and has to be activated by long-chain fatty acids/LCFAs (PubMed:28781081). Inhibited by purine nucleotides (PubMed:28781081). Both purine nucleotides and LCFAs bind the cytosolic side of the transporter and directly compete to activate or inhibit it (PubMed:28781081). Activated by noradrenaline and reactive oxygen species. Despite lacking canonical translational encoding for selenocysteine, a small pool of the protein has been observed to selectively incorporate selenocysteine at 'Cys-254'. Selenocysteine-modified protein is highly sensitive to redox modification and may constitute a pool of protein highly sensitive to activation by elevated levels of reactive oxygen species (ROS).SUBUNIT Most probably functions as a monomer. Binds one purine nucleotide per monomer (By similarity). However, has also been suggested to function as a homodimer or a homotetramer (PubMed:24196960). Tightly associates with cardiolipin in the mitochondrion inner membrane; may stabilize and regulate its activity (PubMed:24196960).INTERACTION Brown adipose tissue.PTM May undergo sulfenylation upon cold exposure. May increase the sensitivity of UCP1 thermogenic function to the activation by noradrenaline probably through structural effects.PTM May undergo ubiquitin-mediated proteasomal degradation.SIMILARITY Belongs to the mitochondrial carrier (TC 2.A.29) family.ONLINE INFORMATION A touch of warmth - Issue 195 of September 2017
descriptionrecommendedName: fullName evidence="13"Mitochondrial brown fat uncoupling protein 1 shortName evidence="13"UCP 1 alternativeName: fullName evidence="11"Solute carrier family 25 member 7 alternativeName: fullName evidence="1"Thermogenin
geneNameUCP1
SLC25A7
UCP
identifierP25874
isSequenceChangedFALSE
keyword3D-structure
Diabetes mellitus
Ion channel
Ion transport
Membrane
Mitochondrion
Mitochondrion inner membrane
Obesity
Oxidation
Proteomics identification
Reference proteome
Repeat
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9841277] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9862192] Weiser, Joel, 2024-02-26
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
nameUCP1
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8991071] ENSEMBL:ENSG00000109424 UCP1 [Homo sapiens]
secondaryIdentifierUCP1_HUMAN
Q13218
Q4KMZ3
Q68G66
sequenceLength307
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:166394] UCP1 [mitochondrial inner membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:P25874 UCP1 (66880)