2d2z

Structural highlights

Function

CLIC4_HUMAN Can insert into membranes and form poorly selective ion channels that may also transport chloride ions. Channel activity depends on the pH. Membrane insertion seems to be redox-regulated and may occur only under oxydizing conditions. Promotes cell-surface expression of HRH3. Has alternate cellular functions like a potential role in angiogenesis or in maintaining apical-basolateral membrane polarity during mitosis and cytokinesis. Could also promote endothelial cell proliferation and regulate endothelial morphogenesis (tubulogenesis).^{[1] [2] [3] [4] [5] [6]}

Evolutionary Conservation

Checkto colour the structure by Evolutionary Conservation, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

See Also

• Ion channels 3D structures

References

1. ↑ Ronnov-Jessen L, Villadsen R, Edwards JC, Petersen OW. Differential expression of a chloride intracellular channel gene, CLIC4, in transforming growth factor-beta1-mediated conversion of fibroblasts to myofibroblasts. Am J Pathol. 2002 Aug;161(2):471-80. PMID:12163372
2. ↑ Berryman MA, Goldenring JR. CLIC4 is enriched at cell-cell junctions and colocalizes with AKAP350 at the centrosome and midbody of cultured mammalian cells. Cell Motil Cytoskeleton. 2003 Nov;56(3):159-72. PMID:14569596 doi:http://dx.doi.org/10.1002/cm.10141
3. ↑ Bohman S, Matsumoto T, Suh K, Dimberg A, Jakobsson L, Yuspa S, Claesson-Welsh L. Proteomic analysis of vascular endothelial growth factor-induced endothelial cell differentiation reveals a role for chloride intracellular channel 4 (CLIC4) in tubular morphogenesis. J Biol Chem. 2005 Dec 23;280(51):42397-404. Epub 2005 Oct 20. PMID:16239224 doi:http://dx.doi.org/10.1074/jbc.M506724200
4. ↑ Maeda K, Haraguchi M, Kuramasu A, Sato T, Ariake K, Sakagami H, Kondo H, Yanai K, Fukunaga K, Yanagisawa T, Sukegawa J. CLIC4 interacts with histamine H3 receptor and enhances the receptor cell surface expression. Biochem Biophys Res Commun. 2008 May 2;369(2):603-8. Epub 2008 Feb 25. PMID:18302930 doi:http://dx.doi.org/S0006-291X(08)00320-3
5. ↑ Tung JJ, Hobert O, Berryman M, Kitajewski J. Chloride intracellular channel 4 is involved in endothelial proliferation and morphogenesis in vitro. Angiogenesis. 2009;12(3):209-20. doi: 10.1007/s10456-009-9139-3. Epub 2009 Feb, 27. PMID:19247789 doi:http://dx.doi.org/10.1007/s10456-009-9139-3
6. ↑ Littler DR, Assaad NN, Harrop SJ, Brown LJ, Pankhurst GJ, Luciani P, Aguilar MI, Mazzanti M, Berryman MA, Breit SN, Curmi PM. Crystal structure of the soluble form of the redox-regulated chloride ion channel protein CLIC4. FEBS J. 2005 Oct;272(19):4996-5007. PMID:16176272 doi:10.1111/j.1742-4658.2005.04909.x