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FFAR2
HPA
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  • FFAR2
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

FFAR2
Synonyms FFA2R, GPR43
Gene descriptioni

Full gene name according to HGNC.

Free fatty acid receptor 2
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

G-protein coupled receptors
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Membrane
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 19
Cytoband q13.12
Chromosome location (bp) 35443907 - 35451767
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

2
Ensembl ENSG00000126262 (version 109)
Entrez gene 2867
HGNC HGNC:4501
UniProt O15552 (UniProt - Evidence at protein level)
neXtProt NX_O15552
GeneCards FFAR2
Antibodypedia FFAR2 antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

G protein-coupled receptor that is activated by a major product of dietary fiber digestion, the short chain fatty acids (SCFAs), and that plays a role in the regulation of whole-body energy homeostasis and in intestinal immunity. In omnivorous mammals, the short chain fatty acids acetate, propionate and butyrate are produced primarily by the gut microbiome that metabolizes dietary fibers. SCFAs serve as a source of energy but also act as signaling molecules. That G protein-coupled receptor is probably coupled to the pertussis toxin-sensitive, G(i/o)-alpha family of G proteins but also to the Gq family 1, 2, 3. Its activation results in the formation of inositol 1,4,5-trisphosphate, the mobilization of intracellular calcium, the phosphorylation of the MAPK3/ERK1 and MAPK1/ERK2 kinases and the inhibition of intracellular cAMP accumulation. May play a role in glucose homeostasis by regulating the secretion of GLP-1, in response to short-chain fatty acids accumulating in the intestine. May also regulate the production of LEP/Leptin, a hormone acting on the central nervous system to inhibit food intake. Finally, may also regulate whole-body energy homeostasis through adipogenesis regulating both differentiation and lipid storage of adipocytes. In parallel to its role in energy homeostasis, may also mediate the activation of the inflammatory and immune responses by SCFA in the intestine, regulating the rapid production of chemokines and cytokines. May also play a role in the resolution of the inflammatory response and control chemotaxis in neutrophils. In addition to SCFAs, may also be activated by the extracellular lectin FCN1 in a process leading to activation of monocytes and inducing the secretion of interleukin-8/IL-8 in response to the presence of microbes 4. Among SCFAs, the fatty acids containing less than 6 carbons, the most potent activators are probably acetate, propionate and butyrate 5, 6. Exhibits a SCFA-independent constitutive G protein-coupled receptor activity 7.... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

G-protein coupled receptor, Receptor, Transducer
Biological process (UniProt)i

Keywords assigned by UniProt to proteins because they are involved in a particular biological process.

Immunity, Inflammatory response
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Lipid-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a member of the GP40 family of G protein-coupled receptors that are clustered together on chromosome 19. The encoded protein is a receptor for short chain free fatty acids and may be involved in the inflammatory response and in regulating lipid plasma levels. [provided by RefSeq, Apr 2009]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
FFAR2-201
ENSP00000246549
ENST00000246549
O15552
[Direct mapping] Free fatty acid receptor 2
Show all
C6KYL4
[Target identity:100%; Query identity:100%] Free fatty acid receptor 2
Show all
G-protein coupled receptors
   GPCRs excl olfactory receptors
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   GPCRHMM predicted membrane proteins
   # TM segments-based
   7TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
   DeepTMHMM predicted membrane proteins
Show all
GO:0002232 [leukocyte chemotaxis involved in inflammatory response]
GO:0002376 [immune system process]
GO:0002385 [mucosal immune response]
GO:0002673 [regulation of acute inflammatory response]
GO:0002720 [positive regulation of cytokine production involved in immune response]
GO:0002752 [cell surface pattern recognition receptor signaling pathway]
GO:0002879 [positive regulation of acute inflammatory response to non-antigenic stimulus]
GO:0004930 [G protein-coupled receptor activity]
GO:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0006954 [inflammatory response]
GO:0007165 [signal transduction]
GO:0007186 [G protein-coupled receptor signaling pathway]
GO:0008289 [lipid binding]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0019915 [lipid storage]
GO:0032722 [positive regulation of chemokine production]
GO:0032757 [positive regulation of interleukin-8 production]
GO:0042593 [glucose homeostasis]
GO:0045444 [fat cell differentiation]
GO:0071398 [cellular response to fatty acid]
GO:0090276 [regulation of peptide hormone secretion]
Show all
330 aa
37.1 kDa
No 7
FFAR2-202
ENSP00000473159
ENST00000599180
O15552
[Direct mapping] Free fatty acid receptor 2
Show all
C6KYL4
[Target identity:100%; Query identity:100%] Free fatty acid receptor 2
Show all
G-protein coupled receptors
   GPCRs excl olfactory receptors
Predicted membrane proteins
   Prediction method-based
   Membrane proteins predicted by MDM
   MEMSAT3 predicted membrane proteins
   MEMSAT-SVM predicted membrane proteins
   Phobius predicted membrane proteins
   SCAMPI predicted membrane proteins
   SPOCTOPUS predicted membrane proteins
   THUMBUP predicted membrane proteins
   TMHMM predicted membrane proteins
   GPCRHMM predicted membrane proteins
   # TM segments-based
   7TM proteins predicted by MDM
Mapped to neXtProt
   neXtProt - Evidence at protein level
   DeepTMHMM predicted membrane proteins
Show all
GO:0002232 [leukocyte chemotaxis involved in inflammatory response]
GO:0002376 [immune system process]
GO:0002385 [mucosal immune response]
GO:0002673 [regulation of acute inflammatory response]
GO:0002720 [positive regulation of cytokine production involved in immune response]
GO:0002752 [cell surface pattern recognition receptor signaling pathway]
GO:0002879 [positive regulation of acute inflammatory response to non-antigenic stimulus]
GO:0004930 [G protein-coupled receptor activity]
GO:0005096 [GTPase activator activity]
GO:0005246 [calcium channel regulator activity]
GO:0005515 [protein binding]
GO:0005886 [plasma membrane]
GO:0006954 [inflammatory response]
GO:0007165 [signal transduction]
GO:0007186 [G protein-coupled receptor signaling pathway]
GO:0007200 [phospholipase C-activating G protein-coupled receptor signaling pathway]
GO:0008289 [lipid binding]
GO:0010855 [adenylate cyclase inhibitor activity]
GO:0016004 [phospholipase activator activity]
GO:0016020 [membrane]
GO:0016021 [integral component of membrane]
GO:0019915 [lipid storage]
GO:0032024 [positive regulation of insulin secretion]
GO:0032722 [positive regulation of chemokine production]
GO:0032757 [positive regulation of interleukin-8 production]
GO:0042593 [glucose homeostasis]
GO:0042995 [cell projection]
GO:0045444 [fat cell differentiation]
GO:0046676 [negative regulation of insulin secretion]
GO:0071398 [cellular response to fatty acid]
GO:0090276 [regulation of peptide hormone secretion]
GO:0099103 [channel activator activity]
GO:0099105 [ion channel modulating, G protein-coupled receptor signaling pathway]
GO:0099107 [ion channel regulator activity involved in G protein-coupled receptor signaling pathway]
GO:0140677 [molecular function activator activity]
GO:1990806 [ligand-gated ion channel signaling pathway]
Show all
330 aa
37.1 kDa
No 7

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