Rho GTPases control a variety of cellular processes. There are 3 subtypes of Rho GTPases in the Ras superfamily of small G proteins: RHO (see MIM 165370), RAC (see RAC1; MIM 602048), and CDC42 (MIM 116952). GTPase-activating proteins (GAPs) bind activated forms of Rho GTPases and stimulate GTP hydrolysis. Through this catalytic function, Rho GAPs negatively regulate Rho-mediated signals. GAPs may also serve as effector molecules and play a role in signaling downstream of Rho and other Ras-like GTPases.[supplied by OMIM][2]
During cytokinesis, RACGAP1 has been shown to interact with KIF23 to form the centralspindlin complex.[5] This complex is essential for the formation of the central spindle. RACGAP1 also interacts with PRC1 to stabilize and maintain the central spindle as anaphase proceeds.[6]
References
↑Touré A, Dorseuil O, Morin L, Timmons P, Jégou B, Reibel L, Gacon G (March 1998). "MgcRacGAP, a new human GTPase-activating protein for Rac and Cdc42 similar to Drosophila rotundRacGAP gene product, is expressed in male germ cells". The Journal of Biological Chemistry. 273 (11): 6019–23. doi:10.1074/jbc.273.11.6019. PMID9497316.
↑Toure A, Morin L, Pineau C, Becq F, Dorseuil O, Gacon G (June 2001). "Tat1, a novel sulfate transporter specifically expressed in human male germ cells and potentially linked to rhogtpase signaling". The Journal of Biological Chemistry. 276 (23): 20309–15. doi:10.1074/jbc.M011740200. PMID11278976.
↑Glotzer M (February 2013). "Cytokinesis: centralspindlin moonlights as a membrane anchor". Current Biology. 23 (4): R145–7. doi:10.1016/j.cub.2013.01.006. PMID23428321.
Maruyama K, Sugano S (January 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID8125298.
Gerwins P, Blank JL, Johnson GL (March 1997). "Cloning of a novel mitogen-activated protein kinase kinase kinase, MEKK4, that selectively regulates the c-Jun amino terminal kinase pathway". The Journal of Biological Chemistry. 272 (13): 8288–95. doi:10.1074/jbc.272.13.8288. PMID9079650.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (October 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID9373149.
Zuber J, Tchernitsa OI, Hinzmann B, Schmitz AC, Grips M, Hellriegel M, Sers C, Rosenthal A, Schäfer R (February 2000). "A genome-wide survey of RAS transformation targets". Nature Genetics. 24 (2): 144–52. doi:10.1038/72799. PMID10655059.
Das B, Shu X, Day GJ, Han J, Krishna UM, Falck JR, Broek D (May 2000). "Control of intramolecular interactions between the pleckstrin homology and Dbl homology domains of Vav and Sos1 regulates Rac binding". The Journal of Biological Chemistry. 275 (20): 15074–81. doi:10.1074/jbc.M907269199. PMID10748082.
Nagase T, Kikuno R, Ishikawa K, Hirosawa M, Ohara O (April 2000). "Prediction of the coding sequences of unidentified human genes. XVII. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro". DNA Research. 7 (2): 143–50. doi:10.1093/dnares/7.2.143. PMID10819331.
Kawashima T, Hirose K, Satoh T, Kaneko A, Ikeda Y, Kaziro Y, Nosaka T, Kitamura T (September 2000). "MgcRacGAP is involved in the control of growth and differentiation of hematopoietic cells". Blood. 96 (6): 2116–24. PMID10979956.
Hirose K, Kawashima T, Iwamoto I, Nosaka T, Kitamura T (February 2001). "MgcRacGAP is involved in cytokinesis through associating with mitotic spindle and midbody". The Journal of Biological Chemistry. 276 (8): 5821–8. doi:10.1074/jbc.M007252200. PMID11085985.
Caloca MJ, Wang H, Delemos A, Wang S, Kazanietz MG (May 2001). "Phorbol esters and related analogs regulate the subcellular localization of beta 2-chimaerin, a non-protein kinase C phorbol ester receptor". The Journal of Biological Chemistry. 276 (21): 18303–12. doi:10.1074/jbc.M011368200. PMID11278894.
Toure A, Morin L, Pineau C, Becq F, Dorseuil O, Gacon G (June 2001). "Tat1, a novel sulfate transporter specifically expressed in human male germ cells and potentially linked to rhogtpase signaling". The Journal of Biological Chemistry. 276 (23): 20309–15. doi:10.1074/jbc.M011740200. PMID11278976.
Mishima M, Kaitna S, Glotzer M (January 2002). "Central spindle assembly and cytokinesis require a kinesin-like protein/RhoGAP complex with microtubule bundling activity". Developmental Cell. 2 (1): 41–54. doi:10.1016/S1534-5807(01)00110-1. PMID11782313.
Kitamura T, Kawashima T, Minoshima Y, Tonozuka Y, Hirose K, Nosaka T (December 2001). "Role of MgcRacGAP/Cyk4 as a regulator of the small GTPase Rho family in cytokinesis and cell differentiation". Cell Structure and Function. 26 (6): 645–51. doi:10.1247/csf.26.645. PMID11942621.
Côté JF, Vuori K (December 2002). "Identification of an evolutionarily conserved superfamily of DOCK180-related proteins with guanine nucleotide exchange activity". Journal of Cell Science. 115 (Pt 24): 4901–13. doi:10.1242/jcs.00219. PMID12432077.