PAK4

P21(CDKN1A)-activated kinase 4
File:PBB Protein PAK4 image.jpg PDB rendering based on 2bva.
Available structures PDB Ortholog search: Template:Homologene2PDBe PDBe, Template:Homologene2uniprot RCSB List of PDB id codes 2bva​, 2cdz​, 2j0i​, 2ov2​
Identifiers
Symbols	PAK4 ;
External IDs	Template:OMIM5 Template:MGI HomoloGene: 4300
Gene ontology Molecular function Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Cellular component Template:GNF GO Biological process Template:GNF GO Template:GNF GO Template:GNF GO
RNA expression pattern
File:PBB GE PAK4 33814 at tn.png
File:PBB GE PAK4 203154 s at tn.png
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

P21(CDKN1A)-activated kinase 4, also known as PAK4, is a human gene.

PAK proteins, a family of serine/threonine p21-activating kinases, include PAK1, PAK2, PAK3 and PAK4. PAK proteins are critical effectors that link Rho GTPases to cytoskeleton reorganization and nuclear signaling. They serve as targets for the small GTP binding proteins Cdc42 and Rac and have been implicated in a wide range of biological activities. PAK4 interacts specifically with the GTP-bound form of Cdc42Hs and weakly activates the JNK family of MAP kinases. PAK4 is a mediator of filopodia formation and may play a role in the reorganization of the actin cytoskeleton. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.

Further reading

• Bagrodia S, Cerione RA (1999). "Pak to the future". Trends Cell Biol. 9 (9): 350–5. PMID 10461188.
• Abo A, Qu J, Cammarano MS; et al. (1999). "PAK4, a novel effector for Cdc42Hs, is implicated in the reorganization of the actin cytoskeleton and in the formation of filopodia". EMBO J. 17 (22): 6527–40. doi:10.1093/emboj/17.22.6527. PMID 9822598.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Hirosawa M, Nagase T, Ishikawa K; et al. (2000). "Characterization of cDNA clones selected by the GeneMark analysis from size-fractionated cDNA libraries from human brain". DNA Res. 6 (5): 329–36. PMID 10574461.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Hartley JL, Temple GF, Brasch MA (2001). "DNA cloning using in vitro site-specific recombination". Genome Res. 10 (11): 1788–95. PMID 11076863.CS1 maint: Multiple names: authors list (link)
• Dan C, Kelly A, Bernard O, Minden A (2001). "Cytoskeletal changes regulated by the PAK4 serine/threonine kinase are mediated by LIM kinase 1 and cofilin". J. Biol. Chem. 276 (34): 32115–21. doi:10.1074/jbc.M100871200. PMID 11413130.CS1 maint: Multiple names: authors list (link)
• Zhang H, Li Z, Viklund EK, Strömblad S (2002). "P21-activated kinase 4 interacts with integrin alpha v beta 5 and regulates alpha v beta 5-mediated cell migration". J. Cell Biol. 158 (7): 1287–97. PMID 12356872.CS1 maint: Multiple names: authors list (link)
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMID 12477932.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Lu Y, Pan ZZ, Devaux Y, Ray P (2003). "p21-activated protein kinase 4 (PAK4) interacts with the keratinocyte growth factor receptor and participates in keratinocyte growth factor-mediated inhibition of oxidant-induced cell death". J. Biol. Chem. 278 (12): 10374–80. doi:10.1074/jbc.M205875200. PMID 12529371.CS1 maint: Multiple names: authors list (link)
• Barac A, Basile J, Vázquez-Prado J; et al. (2004). "Direct interaction of p21-activated kinase 4 with PDZ-RhoGEF, a G protein-linked Rho guanine exchange factor". J. Biol. Chem. 279 (7): 6182–9. doi:10.1074/jbc.M309579200. PMID 14625312.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• 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. PMID 14702039.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Jin J, Smith FD, Stark C; et al. (2004). "Proteomic, functional, and domain-based analysis of in vivo 14-3-3 binding proteins involved in cytoskeletal regulation and cellular organization". Curr. Biol. 14 (16): 1436–50. doi:10.1016/j.cub.2004.07.051. PMID 15324660.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Ballif BA, Villén J, Beausoleil SA; et al. (2005). "Phosphoproteomic analysis of the developing mouse brain". Mol. Cell Proteomics. 3 (11): 1093–101. doi:10.1074/mcp.M400085-MCP200. PMID 15345747.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Gerhard DS, Wagner L, Feingold EA; et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMID 15489334.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Wiemann S, Arlt D, Huber W; et al. (2004). "From ORFeome to biology: a functional genomics pipeline". Genome Res. 14 (10B): 2136–44. doi:10.1101/gr.2576704. PMID 15489336.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Soosairajah J, Maiti S, Wiggan O; et al. (2005). "Interplay between components of a novel LIM kinase-slingshot phosphatase complex regulates cofilin". EMBO J. 24 (3): 473–86. doi:10.1038/sj.emboj.7600543. PMID 15660133.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Benzinger A, Muster N, Koch HB; et al. (2005). "Targeted proteomic analysis of 14-3-3 sigma, a p53 effector commonly silenced in cancer". Mol. Cell Proteomics. 4 (6): 785–95. doi:10.1074/mcp.M500021-MCP200. PMID 15778465.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Callow MG, Zozulya S, Gishizky ML; et al. (2005). "PAK4 mediates morphological changes through the regulation of GEF-H1". J. Cell. Sci. 118 (Pt 9): 1861–72. doi:10.1242/jcs.02313. PMID 15827085.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Stelzl U, Worm U, Lalowski M; et al. (2005). "A human protein-protein interaction network: a resource for annotating the proteome". Cell. 122 (6): 957–68. doi:10.1016/j.cell.2005.08.029. PMID 16169070.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Rual JF, Venkatesan K, Hao T; et al. (2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. doi:10.1038/nature04209. PMID 16189514.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)