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From Wikipedia, the free encyclopedia

MCOLN3
Identifiers
AliasesMCOLN3, TRP-ML3, TRPML3, mucolipin 3, mucolipin TRP cation channel 3
External IDsOMIM: 607400 MGI: 1890500 HomoloGene: 10118 GeneCards: MCOLN3
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001253693
NM_018298

NM_134160

RefSeq (protein)

NP_001240622
NP_060768

NP_598921

Location (UCSC)Chr 1: 85.02 – 85.05 MbChr 3: 145.82 – 145.85 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Mucolipin-3 also known as TRPML3 (transient receptor potential cation channel, mucolipin subfamily, member 3) is a protein that in humans is encoded by the MCOLN3 gene.[5] It is a member of the small family of the TRPML channels, a subgroup of the large protein family of TRP ion channels.[6]

Gene

In human, the MCOLN3 gene resides on the short arm of chromosome 1 at 1p22.3. The gene is split in 12 exons, which entail the open reading frame of 1659 nucleotides. The encoded protein, TRPML3, has 553 amino acid with a predicted molecular weight of ≈64 kDa. Computational analyses of the secondary structure predict the presence of six transmembrane domains, an ion transport motif (PF00520) and a transient receptor potential motif (PS50272). In the mouse, Mcoln3, is located on the distal end of chromosome 3 at cytogenetic band qH2. Human and mouse TRPML3 proteins share 91% sequence identity.[7] All vertebrate species, for which a genomic sequence is available, harbor the MCOLN3 gene. Homologs of MCOLN3 are also present in the genome of insects (Drosophila melanogaster), nematodes (Caenorhabditis elegans), sea urchin (Strongylocentrotus purpuratus) and lower organisms including Hydra and Dictyostelium.

Expression

Function

TRPML3 is an inwardly-rectifying cation channel.[5]

Genetics

Phenotypes

Mutations of the MCOLN3 gene in mice result in auditory hair cell death and deafness.[8]

Ligands

Agonists (channel activators)

See also

  • transient receptor potential cation channel, mucolipin subfamily, member 1 (MCOLN1)
  • transient receptor potential cation channel, mucolipin subfamily, member 2 (MCOLN2)

References

  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000055732 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000036853 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ a b Clapham DE, Julius D, Montell C, Schultz G (December 2005). "International Union of Pharmacology. XLIX. Nomenclature and structure-function relationships of transient receptor potential channels". Pharmacol. Rev. 57 (4): 427–50. doi:10.1124/pr.57.4.6. PMID 16382100. S2CID 17936350.
  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.
  7. ^ Noben-Trauth, Konrad (2011). "The TRPML3 Channel: From Gene to Function". Transient Receptor Potential Channels. Advances in Experimental Medicine and Biology. Vol. 704. pp. 229–237. doi:10.1007/978-94-007-0265-3_13. ISBN 978-94-007-0264-6. PMID 21290299.
  8. ^ Nagata K, Zheng L, Madathany T, Castiglioni AJ, Bartles JR, García-Añoveros J (January 2008). "The varitint-waddler (Va) deafness mutation in TRPML3 generates constitutive, inward rectifying currents and causes cell degeneration". Proc. Natl. Acad. Sci. U.S.A. 105 (1): 353–8. Bibcode:2008PNAS..105..353N. doi:10.1073/pnas.0707963105. PMC 2224216. PMID 18162548.

Further reading

External links


This page was last edited on 3 March 2023, at 20:35
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