TRPC1 | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Aliases | TRPC1 , HTRP-1, TRP1, transient receptor potential cation channel subfamily C member 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 602343; MGI: 109528; HomoloGene: 2478; GeneCards: TRPC1; OMA:TRPC1 - orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||
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Transient receptor potential canonical 1 (TRPC1) is a protein that in humans is encoded by the TRPC1 gene. [5] [6]
TRPC1 is an ion channel located on the plasma membrane of numerous human and animal cell types. [7] It is a nonspecific cation channel, which means that both sodium and calcium ions can pass through it. TRPC1 is thought to mediate calcium entry in response to depletion of endoplasmic calcium stores or activation of receptors coupled to the phospholipase C system. In HEK293 cells the unitary current-voltage relationship of endogenous TRPC1 channels is almost linear, with a slope conductance of about 17 pS. The extrapolated reversal potential of TRPC1 channels is +30 mV. [8] The TRPC1 protein is widely expressed throughout the mammalian brain and has a similar corticolimbic expression pattern as TRPC4 and TRPC5. [9] [10] The highest density of TRPC1 protein is found in the lateral septum, an area with dense TRPC4 expression, and hippocampus and prefrontal cortex, areas with dense TRPC5 expression. [10]
TRPC1 was the first mammalian Transient Receptor Potential channel to be identified. In 1995 it was cloned when the research groups headed by Craig Montell and Lutz Birnbaumer were searching for proteins similar to the TRP channel in Drosophila . Together with TRPC3 they became the founding members of the TRPC ion channel family. [5] [6]
TRPC1 has been shown to interact with:
Transient receptor potential channels are a group of ion channels located mostly on the plasma membrane of numerous animal cell types. Most of these are grouped into two broad groups: Group 1 includes TRPC, TRPV, TRPVL, TRPM, TRPS, TRPN, and TRPA. Group 2 consists of TRPP and TRPML. Other less-well categorized TRP channels exist, including yeast channels and a number of Group 1 and Group 2 channels present in non-animals. Many of these channels mediate a variety of sensations such as pain, temperature, different kinds of taste, pressure, and vision. In the body, some TRP channels are thought to behave like microscopic thermometers and used in animals to sense hot or cold. Some TRP channels are activated by molecules found in spices like garlic (allicin), chili pepper (capsaicin), wasabi ; others are activated by menthol, camphor, peppermint, and cooling agents; yet others are activated by molecules found in cannabis or stevia. Some act as sensors of osmotic pressure, volume, stretch, and vibration. Most of the channels are activated or inhibited by signaling lipids and contribute to a family of lipid-gated ion channels.
A calcium channel is an ion channel which shows selective permeability to calcium ions. It is sometimes synonymous with voltage-gated calcium channel, which are a type of calcium channel regulated by changes in membrane potential. Some calcium channels are regulated by the binding of a ligand. Other calcium channels can also be regulated by both voltage and ligands to provide precise control over ion flow. Some cation channels allow calcium as well as other cations to pass through the membrane.
TRPC is a family of transient receptor potential cation channels in animals.
TRPV is a family of transient receptor potential cation channels in animals. All TRPVs are highly calcium selective.
TRPM is a family of transient receptor potential ion channels (M standing for wikt:melastatin). Functional TRPM channels are believed to form tetramers. The TRPM family consists of eight different channels, TRPM1–TRPM8.
Mucolipin-1 also known as TRPML1 is a protein that in humans is encoded by the MCOLN1 gene. It is a member of the small family of the TRPML channels, a subgroup of the large protein family of TRP ion channels.
TRPP is a family of transient receptor potential ion channels which when mutated can cause polycystic kidney disease.
Transient receptor potential cation channel, subfamily C, member 6 or Transient receptor potential canonical 6, also known as TRPC6, is a human gene encoding a protein of the same name. TRPC6 is a transient receptor potential channel of the classical TRPC subfamily.
Transient receptor potential cation channel, subfamily C, member 2, also known as TRPC2, is a protein that in humans is encoded by the TRPC2 pseudogene. This protein is not expressed in humans but is in certain other species such as mouse.
Short transient receptor potential channel 3 (TrpC3) also known as transient receptor protein 3 (TRP-3) is a protein that in humans is encoded by the TRPC3 gene. The TRPC3/6/7 subfamily are implicated in the regulation of vascular tone, cell growth, proliferation and pathological hypertrophy. These are diacylglycerol-sensitive cation channels known to regulate intracellular calcium via activation of the phospholipase C (PLC) pathway and/or by sensing Ca2+ store depletion. Together, their role in calcium homeostasis has made them potential therapeutic targets for a variety of central and peripheral pathologies.
The short transient receptor potential channel 4 (TrpC4), also known as Trp-related protein 4, is a protein that in humans is encoded by the TRPC4 gene.
Short transient receptor potential channel 5 (TrpC5) also known as transient receptor protein 5 (TRP-5) is a protein that in humans is encoded by the TRPC5 gene. TrpC5 is subtype of the TRPC family of mammalian transient receptor potential ion channels.
Transient receptor potential cation channel subfamily M member 4 (hTRPM4), also known as melastatin-4, is a protein that in humans is encoded by the TRPM4 gene.
Transient receptor potential cation channel subfamily M member 3 is a protein that in humans is encoded by the TRPM3 gene.
Transient receptor potential cation channel, subfamily M, member 7, also known as TRPM7, is a human gene encoding a protein of the same name.
Mucolipin-3 also known as TRPML3 is a protein that in humans is encoded by the MCOLN3 gene. It is a member of the small family of the TRPML channels, a subgroup of the large protein family of TRP ion channels.
Enkurin is a protein that in humans is encoded by the ENKUR gene.
Ring finger protein 24 is a protein that in humans is encoded by the RNF24 gene.
The transient receptor potential Ca2+ channel (TRP-CC) family (TC# 1.A.4) is a member of the voltage-gated ion channel (VIC) superfamily and consists of cation channels conserved from worms to humans. The TRP-CC family also consists of seven subfamilies (TRPC, TRPV, TRPM, TRPN, TRPA, TRPP, and TRPML) based on their amino acid sequence homology:
Alexander G. Obukhov is an American researcher, who specializes in ion channels, molecular physiology, and vascular biology. Since 1986, Obukhov published research articles, with the most notable ones published in academic journals such as Nature, Journal of Biological Chemistry, EMBO Journal, Journal of Cell Biology, Proceedings of the National Academy of Sciences of the United States of America, and Neuron. Obukhov's research later evolved to feature multiple fields including neurophysiology, traumatic brain injury, pain, and atherosclerosis.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.