8ben

Structural highlights

Function

LRC8C_MOUSE Non-essential component of the volume-regulated anion channel (VRAC, also named VSOAC channel), an anion channel required to maintain a constant cell volume in response to extracellular or intracellular osmotic changes (PubMed:29769723). The VRAC channel conducts iodide better than chloride and can also conduct organic osmolytes like taurine (By similarity). Plays a redundant role in the efflux of amino acids, such as aspartate and glutamate, in response to osmotic stress (By similarity). The VRAC channel also mediates transport of immunoreactive cyclic dinucleotide GMP-AMP (2'-3'-cGAMP), an immune messenger produced in response to DNA virus in the cytosol (By similarity). Channel activity requires LRRC8A plus at least one other family member (LRRC8B, LRRC8C, LRRC8D or LRRC8E); channel characteristics depend on the precise subunit composition (By similarity). May play a role in adipogenesis (PubMed:15184384, PubMed:15564382, PubMed:21804215).[UniProtKB:Q8TDW0]^{[1] [2] [3] [4]}

See Also

• Ion channels 3D structures

References

1. ↑ Tominaga K, Kondo C, Kagata T, Hishida T, Nishizuka M, Imagawa M. The novel gene fad158, having a transmembrane domain and leucine-rich repeat, stimulates adipocyte differentiation. J Biol Chem. 2004 Aug 13;279(33):34840-8. doi: 10.1074/jbc.M312927200. Epub 2004 , Jun 7. PMID:15184384 doi:http://dx.doi.org/10.1074/jbc.M312927200
2. ↑ Tominaga K, Johmura Y, Nishizuka M, Imagawa M. Fad24, a mammalian homolog of Noc3p, is a positive regulator in adipocyte differentiation. J Cell Sci. 2004 Dec 1;117(Pt 25):6217-26. PMID:15564382 doi:http://dx.doi.org/117/25/6217
3. ↑ Hayashi T, Nozaki Y, Nishizuka M, Ikawa M, Osada S, Imagawa M. Factor for adipocyte differentiation 158 gene disruption prevents the body weight gain and insulin resistance induced by a high-fat diet. Biol Pharm Bull. 2011;34(8):1257-63. doi: 10.1248/bpb.34.1257. PMID:21804215 doi:http://dx.doi.org/10.1248/bpb.34.1257
4. ↑ Deneka D, Sawicka M, Lam AKM, Paulino C, Dutzler R. Structure of a volume-regulated anion channel of the LRRC8 family. Nature. 2018 May 16. pii: 10.1038/s41586-018-0134-y. doi:, 10.1038/s41586-018-0134-y. PMID:29769723 doi:http://dx.doi.org/10.1038/s41586-018-0134-y