| Structural highlights
Function
MCLN2_MOUSE Nonselective cation channel probably playing a role in the regulation of membrane trafficking events. Acts as a Ca(2+)-permeable cation channel with inwardly rectifying activity (PubMed:19763610). May activate ARF6 and be involved in the trafficking of GPI-anchored cargo proteins to the cell surface via the ARF6-regulated recycling pathway (By similarity). May play a role in immune processes. In adaptive immunity, TRPML2 and TRPML1 may play redundant roles in the function of the specialized lysosomes of B cells (PubMed:17050035). In the innate immune response, may play a role in the regulation of chemokine secretion and macrophage migration (PubMed:26432893). Through a possible and probably tissue-specific heteromerization with MCOLN1 may be at least in part involved in many lysosome-dependent cellular events. Also functions as a Fe(2+) permeable channel (PubMed:18794901).[UniProtKB:Q8IZK6][1] [2] [3] [4] [5]
References
- ↑ Song Y, Dayalu R, Matthews SA, Scharenberg AM. TRPML cation channels regulate the specialized lysosomal compartment of vertebrate B-lymphocytes. Eur J Cell Biol. 2006 Dec;85(12):1253-64. Epub 2006 Oct 16. PMID:17050035 doi:https://dx.doi.org/10.1016/j.ejcb.2006.08.004
- ↑ Dong XP, Cheng X, Mills E, Delling M, Wang F, Kurz T, Xu H. The type IV mucolipidosis-associated protein TRPML1 is an endolysosomal iron release channel. Nature. 2008 Oct 16;455(7215):992-6. doi: 10.1038/nature07311. Epub 2008 Sep 14. PMID:18794901 doi:https://dx.doi.org/10.1038/nature07311
- ↑ Samie MA, Grimm C, Evans JA, Curcio-Morelli C, Heller S, Slaugenhaupt SA, Cuajungco MP. The tissue-specific expression of TRPML2 (MCOLN-2) gene is influenced by the presence of TRPML1. Pflugers Arch. 2009 Nov;459(1):79-91. doi: 10.1007/s00424-009-0716-5. PMID:19763610 doi:https://dx.doi.org/10.1007/s00424-009-0716-5
- ↑ Grimm C, Jors S, Guo Z, Obukhov AG, Heller S. Constitutive activity of TRPML2 and TRPML3 channels versus activation by low extracellular sodium and small molecules. J Biol Chem. 2012 Jun 29;287(27):22701-8. doi: 10.1074/jbc.M112.368876. PMID:22753890 doi:https://dx.doi.org/10.1074/jbc.M112.368876
- ↑ Sun L, Hua Y, Vergarajauregui S, Diab HI, Puertollano R. Novel Role of TRPML2 in the Regulation of the Innate Immune Response. J Immunol. 2015 Nov 15;195(10):4922-32. doi: 10.4049/jimmunol.1500163. Epub 2015 , Oct 2. PMID:26432893 doi:https://dx.doi.org/10.4049/jimmunol.1500163
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