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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.
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.
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
11
Cytoband
p15.5
Chromosome location (bp)
2404515 - 2444514
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Monovalent cation-selective ion channel activated by intracellular Ca(2+) in a voltage- and temperature-dependent manner1. Mediates the transport of Na(+), K(+) and Cs(+) ions equally well 2. Activated directly by increase in intracellular Ca(2+), but is impermeable to it 3. The activation mechanism of TRPM5 involves a multistep process. TRPM5 activation involves ligand binding (i.e., tastant molecule, glucose stimulation) to Gq/G-protein coupled receptors (GPCR) and leads to the breakdown of phosphatidylinositol bisphosphate (PIP2) into diacylglycerol (DAG) and inositol trisphosphate (IP3), IP3 binds to its receptors in the endoplasmic reticulum and cause calcium release. Simultaneously with the intracellular Ca(2+) release, DAG activates the protein kinase C (PKC), which phosphorylates the TRPM5 channel. This phosphorylation combined with the bound Ca(2+), leads to a robust inward current allowing the entry of sodium ions (Na+) into the cell. This ion influx depolarizes the cell membrane, generating action potentials that propagate TRPM5 signals. Is a key player in sensing sweet, umami and bitter stimuli (By similarity). Involved in insulin secretion by pancreatic beta cells (By similarity)....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Ion channel, Ligand-gated ion channel, Receptor, Voltage-gated channel
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Ion transport, Transport
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
Calcium, Metal-binding
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene encodes a member of the transient receptor potential (TRP) protein family, which is a diverse group of proteins with structural features typical of ion channels. This protein plays an important role in taste transduction, and has characteristics of a calcium-activated, non-selective cation channel that carries Na+, K+, and Cs+ ions equally well, but not Ca(2+) ions. It is activated by lower concentrations of intracellular Ca(2+), and inhibited by higher concentrations. It is also a highly temperature-sensitive, heat activated channel showing a steep increase of inward currents at temperatures between 15 and 35 degrees Celsius. This gene is located within the Beckwith-Wiedemann syndrome critical region-1 on chromosome 11p15.5, and has been shown to be imprinted, with exclusive expression from the paternal allele. [provided by RefSeq, Oct 2010]...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.
The Human Protein Atlas project is funded
