Protein-S-isoprenylcysteine O-methyltransferase is an enzyme that in humans is encoded by the ICMTgene.[1][2][3]
This gene encodes the third of three enzymes that posttranslationally modify isoprenylated C-terminal cysteine residues in certain proteins and target those proteins to the cell membrane. This enzyme localizes to the endoplasmic reticulum. Alternative splicing may result in other transcript variants, but the biological validity of those transcripts has not been determined.[3]
References
↑Dai Q, Choy E, Chiu V, Romano J, Slivka SR, Steitz SA, Michaelis S, Philips MR (Jul 1998). "Mammalian prenylcysteine carboxyl methyltransferase is in the endoplasmic reticulum". J Biol Chem. 273 (24): 15030–4. doi:10.1074/jbc.273.24.15030. PMID9614111.
↑Desrosiers RR, Nguyen QT, Beliveau R (Sep 1999). "The carboxyl methyltransferase modifying G proteins is a metalloenzyme". Biochem Biophys Res Commun. 261 (3): 790–7. doi:10.1006/bbrc.1999.0936. PMID10441503.
Choy E, Chiu VK, Silletti J, et al. (1999). "Endomembrane trafficking of ras: the CAAX motif targets proteins to the ER and Golgi". Cell. 98 (1): 69–80. doi:10.1016/S0092-8674(00)80607-8. PMID10412982.
Lin X, Antalffy B, Kang D, et al. (2000). "Polyglutamine expansion down-regulates specific neuronal genes before pathologic changes in SCA1". Nat. Neurosci. 3 (2): 157–63. doi:10.1038/72101. PMID10649571.
Van Dessel GA, De Busser HM, Lagrou AR (2002). "Prenylcysteine carboxymethyltransferase type III activity is decreased in retinoic acid-treated SH-SY5Y neuroblastoma cells". Int. J. Biochem. Cell Biol. 34 (5): 477–86. doi:10.1016/S1357-2725(01)00151-0. PMID11906819.
Ahmad M, Zhang Y, Zhang Y, et al. (2002). "Role of isoprenylcysteine carboxyl methyltransferase in tumor necrosis factor-alpha stimulation of expression of vascular cell adhesion molecule-1 in endothelial cells". Arterioscler. Thromb. Vasc. Biol. 22 (5): 759–64. doi:10.1161/01.ATV.0000015884.61894.DC. PMID12006387.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Brandenberger R, Wei H, Zhang S, et al. (2005). "Transcriptome characterization elucidates signaling networks that control human ES cell growth and differentiation". Nat. Biotechnol. 22 (6): 707–16. doi:10.1038/nbt971. PMID15146197.
