LRRC8E

LRRC8E
Identifiers
Aliases	LRRC8E , leucine rich repeat containing 8 family member E, leucine rich repeat containing 8 VRAC subunit E
External IDs	OMIM: 612891 MGI: 1919517 HomoloGene: 11817 GeneCards: LRRC8E
Gene location (Human) Chr. Chromosome 19 (human) [1] Band 19p13.2 Start 7,888,505 bp [1] End 7,902,021 bp [1]
Gene location (Mouse) Chr. Chromosome 8 (mouse) [2] Band 8|8 A1.1 Start 4,276,827 bp [2] End 4,287,470 bp [2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in secondary oocyte parotid gland skin of abdomen stromal cell of endometrium Left adrenal gland palpebral conjunctiva minor salivary gland amniotic fluid bronchial epithelial cell islet of Langerhans Top expressed in secondary oocyte lip seminal vesicula otolith organ Epithelium of stomach utricle molar hair follicle esophagus adrenal gland More reference expression data BioGPS More reference expression data
Gene ontology Molecular function protein binding volume-sensitive anion channel activity Cellular component cytoplasm integral component of membrane integral component of plasma membrane membrane endoplasmic reticulum membrane endoplasmic reticulum plasma membrane ion channel complex Biological process ion transport signal transduction transmembrane transport inorganic anion transport cell volume homeostasis anion transmembrane transport aspartate transmembrane transport cellular response to osmotic stress Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 80131 72267 Ensembl ENSG00000171017 ENSMUSG00000046589 UniProt Q6NSJ5 Q66JT1 RefSeq (mRNA) NM_001268284 NM_001268285 NM_025061 NM_028175 RefSeq (protein) NP_001255213 NP_001255214 NP_079337 NP_082451 Location (UCSC) Chr 19: 7.89 – 7.9 Mb Chr 8: 4.28 – 4.29 Mb PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Leucine-rich repeat-containing protein 8E is a protein that in humans is encoded by the LRRC8E gene. ^[5] Researchers have found out that this protein, along with the other LRRC8 proteins LRRC8A, LRRC8B, LRRC8C, and LRRC8D, is sometimes a subunit of the heteromer protein volume-regulated anion channel. ^[6] Volume-Regulated Anion Channels (VRACs) are crucial to the regulation of cell size by transporting chloride ions and various organic osmolytes, such as taurine or glutamate, across the plasma membrane, ^[7] and that is not the only function these channels have been linked to.

While LRRC8E is one of many proteins that can be part of VRAC, research has found that it is not as crucial to the activity of the channel in comparison to LRRC8A and LRRC8D. ^{[8] [9] [10]} However, while we know that LRRC8A and LRRC8D are necessary for VRAC function, other studies have found that they are not sufficient for the full range of usual VRAC activity. ^[11] This is where the other LRRC8 proteins come in, such as LRRC8E, as the different composition of these subunits affects the range of specificity for VRACs. ^{[12] [10]}

In addition to its role in VRACs, the LRRC8 protein family is also associated with agammaglobulinemia-5. ^[13]

Specifically for LRRC8E, there has been a recent study that found that this gene was nominally associated with panic disorder. ^[14]

References

1. GRCh38: Ensembl release 89: ENSG00000171017 - Ensembl, May 2017
2. GRCm38: Ensembl release 89: ENSMUSG00000046589 - 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. "Entrez Gene: LRRC8A leucine rich repeat containing 8 family, member A".
6. Voss FK, Ullrich F, Münch J, Lazarow K, Lutter D, Mah N, Andrade-Navarro MA, von Kries JP, Stauber T, Jentsch TJ (May 2014). "Identification of LRRC8 heteromers as an essential component of the volume-regulated anion channel VRAC" (PDF). Science. 344 (6184): 634–8. Bibcode:2014Sci...344..634V. doi:10.1126/science.1252826. PMID   24790029. S2CID   24709412.
7. Jentsch TJ (May 2016). "VRACs and other ion channels and transporters in the regulation of cell volume and beyond". Nature Reviews Molecular Cell Biology. 17 (5): 293–307. doi:10.1038/nrm.2016.29. PMID   27033257. S2CID   40565653.
8. Hyzinski-García MC, Rudkouskaya A, Mongin AA (November 2014). "LRRC8A protein is indispensable for swelling-activated and ATP-induced release of excitatory amino acids in rat astrocytes". The Journal of Physiology. 592 (22): 4855–62. doi:10.1113/jphysiol.2014.278887. PMC   4259531 . PMID   25172945.
9. Yamada T, Wondergem R, Morrison R, Yin VP, Strange K (October 2016). "Leucine-rich repeat containing protein LRRC8A is essential for swelling-activated Cl- currents and embryonic development in zebrafish =" [[Change of inulin- and chloride-spaces during acute metabolic acidosis in the rat]]. Physiological Reports. 4 (19): 16–27. doi:10.14814/phy2.12940. PMC   5064130 . PMID   27688432.
10. Planells-Cases R, Lutter D, Guyader C, Gerhards NM, Ullrich F, Elger DA, Kucukosmanoglu A, Xu G, Voss FK, Reincke SM, Stauber T, Blomen VA, Vis DJ, Wessels LF, Brummelkamp TR, Borst P, Rottenberg S, Jentsch TJ (December 2015). "Subunit composition of VRAC channels determines substrate specificity and cellular resistance to Pt-based anti-cancer drugs". The EMBO Journal. 34 (24): 2993–3008. doi:10.15252/embj.201592409. PMC   4687416 . PMID   26530471.
11. Okada T, Islam MR, Tsiferova NA, Okada Y, Sabirov RZ (March 2017). "Specific and essential but not sufficient roles of LRRC8A in the activity of volume-sensitive outwardly rectifying anion channel (VSOR)". Channels. 11 (2): 109–120. doi:10.1080/19336950.2016.1247133. PMC   5398601 . PMID   27764579.
12. Lutter D, Ullrich F, Lueck JC, Kempa S, Jentsch TJ (March 2017). "Selective transport of neurotransmitters and modulators by distinct volume-regulated LRRC8 anion channels". Journal of Cell Science. 130 (6): 1122–1133. doi: 10.1242/jcs.196253 . PMID   28193731.
13. Sawada A, Takihara Y, Kim JY, Matsuda-Hashii Y, Tokimasa S, Fujisaki H, Kubota K, Endo H, Onodera T, Ohta H, Ozono K, Hara J (December 2003). "A congenital mutation of the novel gene LRRC8 causes agammaglobulinemia in humans". The Journal of Clinical Investigation. 112 (11): 1707–13. doi:10.1172/JCI18937. PMC   281644 . PMID   14660746.
14. Gregersen NO, Buttenschøn HN, Hedemand A, Nielsen MN, Dahl HA, Kristensen AS, Johansen O, Woldbye DP, Erhardt A, Kruse TA, Wang AG, Børglum AD, Mors O (December 2016). "Association between genes on chromosome 19p13.2 and panic disorder". Psychiatric Genetics. 26 (6): 287–292. doi:10.1097/YPG.0000000000000147. PMID   27610895. S2CID   24158676.

Further reading

• Mehrle A, Rosenfelder H, Schupp I, del Val C, Arlt D, Hahne F, Bechtel S, Simpson J, Hofmann O, Hide W, Glatting KH, Huber W, Pepperkok R, Poustka A, Wiemann S (January 2006). "The LIFEdb database in 2006". Nucleic Acids Research. 34 (Database issue): D415–8. doi:10.1093/nar/gkj139. PMC   1347501 . PMID   16381901.
• Wiemann S, Arlt D, Huber W, Wellenreuther R, Schleeger S, Mehrle A, Bechtel S, Sauermann M, Korf U, Pepperkok R, Sültmann H, Poustka A (October 2004). "From ORFeome to biology: a functional genomics pipeline". Genome Research. 14 (10B): 2136–44. doi:10.1101/gr.2576704. PMC   528930 . PMID   15489336.
• Hartley JL, Temple GF, Brasch MA (November 2000). "DNA cloning using in vitro site-specific recombination". Genome Research. 10 (11): 1788–95. doi:10.1101/gr.143000. PMC   310948 . PMID   11076863.
• Eggermont J, Trouet D, Carton I, Nilius B (2001). "Cellular function and control of volume-regulated anion channels". Cell Biochemistry and Biophysics . 35 (3): 263–74. doi:10.1385/CBB:35:3:263. PMID   11894846. S2CID   31821726.
• Hsu LY, Kim HJ, Sujansky E, Kousseff B, Hirschhorn K (2016). "Reciprocal translocation versus centric fusion between two No. 13 chromosomes. A case of 46,XX,-13,+t(13;13)(p12;q13) and a case of 46,XY,-13,+t(13;13)(p12;p12)". Cytogenetics and Cell Genetics. 12 (4): 235–44. doi:10.1007/s00424-015-1765-6. PMC   4752865 . PMID   4752865.
• Nagase T, Kikuno R, Ishikawa KI, Hirosawa M, Ohara O (February 2000). "Prediction of the coding sequences of unidentified human genes. XVI. The complete sequences of 150 new cDNA clones from brain which code for large proteins in vitro". DNA Research. 7 (1): 65–73. doi: 10.1093/dnares/7.1.65 . PMID   10718198.
• Kubota K, Kim JY, Sawada A, Tokimasa S, Fujisaki H, Matsuda-Hashii Y, Ozono K, Hara J (April 2004). "LRRC8 involved in B cell development belongs to a novel family of leucine-rich repeat proteins". FEBS Letters. 564 (1–2): 147–52. doi: 10.1016/S0014-5793(04)00332-1 . PMID   15094057. S2CID   29283213.
• Smits G, Kajava AV (July 2004). "LRRC8 extracellular domain is composed of 17 leucine-rich repeats". Molecular Immunology. 41 (5): 561–2. doi:10.1016/j.molimm.2004.04.001. PMID   15183935.
• Otsuki T, Ota T, Nishikawa T, Hayashi K, Suzuki Y, Yamamoto J, Wakamatsu A, Kimura K, Sakamoto K, Hatano N, Kawai Y, Ishii S, Saito K, Kojima S, Sugiyama T, Ono T, Okano K, Yoshikawa Y, Aotsuka S, Sasaki N, Hattori A, Okumura K, Nagai K, Sugano S, Isogai T (2007). "Signal sequence and keyword trap in silico for selection of full-length human cDNAs encoding secretion or membrane proteins from oligo-capped cDNA libraries". DNA Research. 12 (2): 117–26. doi: 10.1093/dnares/12.2.117 . PMID   16303743.
• Olsen JV, Blagoev B, Gnad F, Macek B, Kumar C, Mortensen P, Mann M (November 2006). "Global, in vivo, and site-specific phosphorylation dynamics in signaling networks". Cell. 127 (3): 635–48. doi: 10.1016/j.cell.2006.09.026 . PMID   17081983. S2CID   7827573.