PREX2

PREX2
Identifiers
Aliases	PREX2, 6230420N16Rik, DEP.2, DEPDC2, P-REX2, PPP1R129, phosphatidylinositol-3,4,5-trisphosphate dependent Rac exchange factor 2
External IDs	MGI: 1923385 HomoloGene: 23523 GeneCards: PREX2
Gene location (Human)
Chr.	Chromosome 8 (human)[1]
End	68,237,030 bp[1]
Gene location (Mouse)
Chr.	Chromosome 1 (mouse)[2]
End	11,303,681 bp[2]
Gene ontology
Molecular function	• Rho guanyl-nucleotide exchange factor activity; • GTPase activator activity; • guanyl-nucleotide exchange factor activity; • Rac guanyl-nucleotide exchange factor activity;
Cellular component	• cytoplasm; • plasma membrane; • cytosol;
Biological process	• adult locomotory behavior; • phosphatidylinositol 3-kinase signaling; • G-protein coupled receptor signaling pathway; • regulation of Rho protein signal transduction; • intracellular signal transduction; • dendrite morphogenesis; • positive regulation of GTPase activity; • negative regulation of protein kinase activity; • negative regulation of TOR signaling;
	Sources:Amigo / QuickGO
Orthologs
	80243
	109294
	ENSG00000046889
	ENSMUSG00000048960
	Q70Z35
	Q3LAC4
	NM_024870; NM_025170
	NM_001033636; NM_029525
	NP_079146; NP_079446
	NP_001028808; NP_083801
	Wikidata
View/Edit Human	View/Edit Mouse

Phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 2 is a protein that in humans is encoded by the PREX2 gene.^[5]^[6]

Clinical relevance

Mutations in this gene have been recurrently seen in melanoma.^[7]

1 2 3 GRCh38: Ensembl release 89: ENSG00000046889 - Ensembl, May 2017
1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000048960 - Ensembl, May 2017
↑ "Human PubMed Reference:".
↑ "Mouse PubMed Reference:".
↑ "Entrez Gene: Phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 2". Retrieved 2012-05-11.
↑ Rosenfeldt H, Vázquez-Prado J, Gutkind JS (August 2004). "P-REX2, a novel PI-3-kinase sensitive Rac exchange factor". FEBS Lett. 572 (1–3): 167–71. doi:10.1016/j.febslet.2004.06.097. PMID 15304342.
↑ Berger MF, Hodis E, Heffernan TP, Deribe YL, Lawrence MS, Protopopov A, Ivanova E, Watson IR, Nickerson E, Ghosh P, Zhang H, Zeid R, Ren X, Cibulskis K, Sivachenko AY, Wagle N, Sucker A, Sougnez C, Onofrio R, Ambrogio L, Auclair D, Fennell T, Carter SL, Drier Y, Stojanov P, Singer MA, Voet D, Jing R, Saksena G, Barretina J, Ramos AH, Pugh TJ, Stransky N, Parkin M, Winckler W, Mahan S, Ardlie K, Baldwin J, Wargo J, Schadendorf D, Meyerson M, Gabriel SB, Golub TR, Wagner SN, Lander ES, Getz G, Chin L, Garraway LA (May 2012). "Melanoma genome sequencing reveals frequent PREX2 mutations". Nature. 485 (7399): 502–6. doi:10.1038/nature11071. PMC 3367798. PMID 22622578.

Donald S, Hill K, Lecureuil C, Barnouin R, Krugmann S, John Coadwell W, Andrews SR, Walker SA, Hawkins PT, Stephens LR, Welch HC (August 2004). "P-Rex2, a new guanine-nucleotide exchange factor for Rac". FEBS Lett. 572 (1–3): 172–6. doi:10.1016/j.febslet.2004.06.096. PMID 15304343.
Hernández-Negrete I, Carretero-Ortega J, Rosenfeldt H, Hernández-García R, Calderón-Salinas JV, Reyes-Cruz G, Gutkind JS, Vázquez-Prado J (August 2007). "P-Rex1 links mammalian target of rapamycin signaling to Rac activation and cell migration". J. Biol. Chem. 282 (32): 23708–15. doi:10.1074/jbc.M703771200. PMID 17565979.
Joseph RE, Norris FA (July 2005). "Substrate specificity and recognition is conferred by the pleckstrin homology domain of the Dbl family guanine nucleotide exchange factor P-Rex2". J. Biol. Chem. 280 (30): 27508–12. doi:10.1074/jbc.M412495200. PMID 15897194.
Fine B, Hodakoski C, Koujak S, Su T, Saal LH, Maurer M, Hopkins B, Keniry M, Sulis ML, Mense S, Hibshoosh H, Parsons R (September 2009). "Activation of the PI3K pathway in cancer through inhibition of PTEN by exchange factor P-REX2a". Science. 325 (5945): 1261–5. doi:10.1126/science.1173569. PMC 2936784. PMID 19729658.
Leslie NR (2009). "P-REX2a driving tumorigenesis by PTEN inhibition". Sci Signal. 2 (94): pe68. doi:10.1126/scisignal.294pe68. PMID 19861688.

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