Mucolipin-1 also known as TRPML1 (transient receptor potential cation channel, mucolipin subfamily, member 1) 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.
TRPML1 is a 65 kDa protein associated with mucolipidosis type IV. Its predicted structure includes six transmembrane domains, a transient receptor potential (TRP) cation-channel domain, and an internal channel pore. TRPML1 is believed to channel iron ions across the endosome/lysosome membrane into the cell and so its malfunction causes cellular iron deficiency.
- transient receptor potential cation channel, mucolipin subfamily, member 2 (MCOLN2)
- transient receptor potential cation channel, mucolipin subfamily, member 3 (MCOLN3)
- mucolipidosis type IV
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- ^ Dong, X, Cheng, X., Mills, E., Delling, M., Wang, F., Kurz, T. and Xu, H. (2008). "The Type IV Mucolipidosis-Associated Protein TRPML1 is an Endo-lysosomal Iron Release Channel". Nature 455 (7215): 992–6. PMID 18794901. doi:10.1038/nature07311.
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