Protein family
TRPML (transient receptor potential cation channel, mucolipin subfamily) comprises a group of three evolutionarily related proteins that belongs to the large family of transient receptor potential ion channels. The three proteins TRPML1, TRPML2 and TRPML3 are encoded by the mucolipin-1 (MCOLN1), mucolipin-2 (MCOLN2) and mucolipin-3 (MCOLN3) genes, respectively.
The three members of the TRPML ("ML" for mucolipin) sub-family are not extremely well characterized.[1] TRPML1 is known to be localized in late endosomes.[2] This subunit also contains a lipase domain between its S1 and S2 segments. While the function of this domain is unknown it has been proposed that it is involved in channel regulation. Physiological studies have described TRPML1 channels as proton leak channels in lysosomes responsible for preventing these organelles from becoming too acidic.[2] TRPML2 and TRPML3 more poorly characterized than TRPML1.[3][4]
Deficiencies can lead to enlarged vesicles.[5]
Genes
- MCOLN1 (TRPML1)
- MCOLN2 (TRPML2)
- MCOLN3 (TRPML3)
References
- ^ Nilius B, Owsianik G, Voets T, Peters JA (2007). "Transient receptor potential cation channels in disease". Physiol. Rev. 87 (1): 165–217. doi:10.1152/physrev.00021.2006. PMID 17237345.
- ^ a b Colletti GA, Kiselyov K (January 2011). "Chapter 11: TRPML1". In Islam MS (ed.). Transient Receptor Potential Channels. Advances in Experimental Medicine and Biology. Vol. 704. Berlin: Springer. p. 700. ISBN 978-94-007-0264-6.
- ^ Flores EN, García-Añoveros J (January 2011). "Chapter 12: TRPML2". In Islam MS (ed.). Transient Receptor Potential Channels. Advances in Experimental Medicine and Biology. Vol. 704. Berlin: Springer. p. 700. ISBN 978-94-007-0264-6.
- ^ Noben-Trauth K (January 2011). "Chapter 13: TRPML3". In Islam MS (ed.). Transient Receptor Potential Channels. Advances in Experimental Medicine and Biology. Vol. 704. Berlin: Springer. p. 700. ISBN 978-94-007-0264-6.
- ^ Qian F, Noben-Trauth K (2005). "Cellular and molecular function of mucolipins (TRPML) and polycystin 2 (TRPP2)". Pflügers Arch. 451 (1): 277–85. doi:10.1007/s00424-005-1469-4. PMID 15971078. S2CID 23165191.
External links
- "Transient Receptor Potential Channels". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.
- "TRIP Database". a manually curated database of protein-protein interactions for mammalian TRP channels.
Membrane transport protein: ion channels (
TC 1A)
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see also disorders |
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TRPA | Activators | - 4-Hydroxynonenal
- 4-Oxo-2-nonenal
- 4,5-EET
- 12S-HpETE
- 15-Deoxy-Δ12,14-prostaglandin J2
- α-Sanshool (ginger, Sichuan and melegueta peppers)
- Acrolein
- Allicin (garlic)
- Allyl isothiocyanate (mustard, radish, horseradish, wasabi)
- AM404
- ASP-7663
- Bradykinin
- Cannabichromene (cannabis)
- Cannabidiol (cannabis)
- Cannabigerol (cannabis)
- Cinnamaldehyde (cinnamon)
- CR gas (dibenzoxazepine; DBO)
- CS gas (2-chlorobenzal malononitrile)
- Cuminaldehyde (cumin)
- Curcumin (turmeric)
- Dehydroligustilide (celery)
- Diallyl disulfide
- Dicentrine (Lindera spp.)
- Farnesyl thiosalicylic acid
- Formalin
- Gingerols (ginger)
- Hepoxilin A3
- Hepoxilin B3
- Hydrogen peroxide
- Icilin
- Isothiocyanate
- JT-010
- Ligustilide (celery, Angelica acutiloba)
- Linalool (Sichuan pepper, thyme)
- Methylglyoxal
- Methyl salicylate (wintergreen)
- N-Methylmaleimide
- Nicotine (tobacco)
- Oleocanthal (olive oil)
- Paclitaxel (Pacific yew)
- Paracetamol (acetaminophen)
- PF-4840154
- Phenacyl chloride
- Polygodial (Dorrigo pepper)
- Shogaols (ginger, Sichuan and melegueta peppers)
- Tear gases
- Tetrahydrocannabinol (cannabis)
- Tetrahydrocannabiorcol
- Thiopropanal S-oxide (onion)
- Umbellulone (Umbellularia californica)
- WIN 55,212-2
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Blockers | |
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TRPC | |
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TRPM | |
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TRPML | |
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TRPP | |
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TRPV | Activators | - 2-APB
- 5',6'-EET
- 9-HODE
- 9-oxoODE
- 12S-HETE
- 12S-HpETE
- 13-HODE
- 13-oxoODE
- 20-HETE
- α-Sanshool (ginger, Sichuan and melegueta peppers)
- Allicin (garlic)
- AM404
- Anandamide
- Bisandrographolide (Andrographis paniculata)
- Camphor (camphor laurel, rosemary, camphorweed, African blue basil, camphor basil)
- Cannabidiol (cannabis)
- Cannabidivarin (cannabis)
- Capsaicin (chili pepper)
- Carvacrol (oregano, thyme, pepperwort, wild bergamot, others)
- DHEA
- Diacyl glycerol
- Dihydrocapsaicin (chili pepper)
- Estradiol
- Eugenol (basil, clove)
- Evodiamine (Euodia ruticarpa)
- Gingerols (ginger)
- GSK1016790A
- Heat
- Hepoxilin A3
- Hepoxilin B3
- Homocapsaicin (chili pepper)
- Homodihydrocapsaicin (chili pepper)
- Incensole (incense)
- Lysophosphatidic acid
- Low pH (acidic conditions)
- Menthol (mint)
- N-Arachidonoyl dopamine
- N-Oleoyldopamine
- N-Oleoylethanolamide
- Nonivamide (PAVA) (PAVA spray)
- Nordihydrocapsaicin (chili pepper)
- Paclitaxel (Pacific yew)
- Paracetamol (acetaminophen)
- Phenylacetylrinvanil
- Phorbol esters (e.g., 4α-PDD)
- Piperine (black pepper, long pepper)
- Polygodial (Dorrigo pepper)
- Probenecid
- Protons
- RhTx
- Rutamarin (Ruta graveolens)
- Resiniferatoxin (RTX) (Euphorbia resinifera/pooissonii)
- Shogaols (ginger, Sichuan and melegueta peppers)
- Tetrahydrocannabivarin (cannabis)
- Thymol (thyme, oregano)
- Tinyatoxin (Euphorbia resinifera/pooissonii)
- Tramadol
- Vanillin (vanilla)
- Zucapsaicin
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Blockers | |
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See also: Receptor/signaling modulators • Ion channel modulators |