CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-001705
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Serine/threonine-protein kinase PAK 4 
Protein Synonyms/Alias
 p21-activated kinase 4; PAK-4 
Gene Name
 PAK4 
Gene Synonyms/Alias
 KIAA1142 
Created Date
 July 27, 2013 
Organism
 Homo sapiens (Human) 
NCBI Taxa ID
 9606 
Lysine Modification
Position
Peptide
Type
References
31GFDQHEQKFTGLPRQubiquitination[1, 2]
Reference
 [1] A proteome-wide, quantitative survey of in vivo ubiquitylation sites reveals widespread regulatory roles.
 Wagner SA, Beli P, Weinert BT, Nielsen ML, Cox J, Mann M, Choudhary C.
 Mol Cell Proteomics. 2011 Oct;10(10):M111.013284. [PMID: 21890473]
 [2] hCKSAAP_UbSite: improved prediction of human ubiquitination sites by exploiting amino acid pattern and properties.
 Chen Z, Zhou Y, Song J, Zhang Z.
 Biochim Biophys Acta. 2013 Aug;1834(8):1461-7. [PMID: 23603789
Functional Description
 Serine/threonine protein kinase that plays a role in a variety of different signaling pathways including cytoskeleton regulation, cell migration, growth, proliferation or cell survival. Activation by various effectors including growth factor receptors or active CDC42 and RAC1 results in a conformational change and a subsequent autophosphorylation on several serine and/or threonine residues. Phosphorylates and inactivates the protein phosphatase SSH1, leading to increased inhibitory phosphorylation of the actin binding/depolymerizing factor cofilin. Decreased cofilin activity may lead to stabilization of actin filaments. Phosphorylates LIMK1, a kinase that also inhibits the activity of cofilin. Phosphorylates integrin beta5/ITGB5 and thus regulates cell motility. Phosphorylates ARHGEF2 and activates the downstream target RHOA that plays a role in the regulation of assembly of focal adhesions and actin stress fibers. Stimulates cell survival by phosphorylating the BCL2 antagonist of cell death BAD. Alternatively, inhibits apoptosis by preventing caspase-8 binding to death domain receptors in a kinase independent manner. Plays a role in cell-cycle progression by controlling levels of the cell-cycle regulatory protein CDKN1A and by phosphorylating RAN. 
Sequence Annotation
 DOMAIN 11 24 CRIB.
 DOMAIN 321 572 Protein kinase.
 NP_BIND 327 335 ATP (By similarity).
 REGION 25 320 Linker.
 REGION 298 323 GEF-interaction domain (GID).
 ACT_SITE 440 440 Proton acceptor (By similarity).
 BINDING 350 350 ATP (By similarity).
 MOD_RES 41 41 Phosphoserine.
 MOD_RES 104 104 Phosphoserine.
 MOD_RES 148 148 Phosphoserine.
 MOD_RES 167 167 Phosphoserine.
 MOD_RES 181 181 Phosphoserine.
 MOD_RES 187 187 Phosphothreonine.
 MOD_RES 195 195 Phosphoserine.
 MOD_RES 258 258 Phosphoserine.
 MOD_RES 267 267 Phosphoserine.
 MOD_RES 291 291 Phosphoserine.
 MOD_RES 474 474 Phosphoserine; by autocatalysis.  
Keyword
 3D-structure; Alternative splicing; Apoptosis; ATP-binding; Cell cycle; Complete proteome; Cytoplasm; Kinase; Nucleotide-binding; Phosphoprotein; Polymorphism; Reference proteome; Serine/threonine-protein kinase; Transferase. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 591 AA 
Protein Sequence
MFGKRKKRVE ISAPSNFEHR VHTGFDQHEQ KFTGLPRQWQ SLIEESARRP KPLVDPACIT 60
SIQPGAPKTI VRGSKGAKDG ALTLLLDEFE NMSVTRSNSL RRDSPPPPAR ARQENGMPEE 120
PATTARGGPG KAGSRGRFAG HSEAGGGSGD RRRAGPEKRP KSSREGSGGP QESSRDKRPL 180
SGPDVGTPQP AGLASGAKLA AGRPFNTYPR ADTDHPSRGA QGEPHDVAPN GPSAGGLAIP 240
QSSSSSSRPP TRARGAPSPG VLGPHASEPQ LAPPACTPAA PAVPGPPGPR SPQREPQRVS 300
HEQFRAALQL VVDPGDPRSY LDNFIKIGEG STGIVCIATV RSSGKLVAVK KMDLRKQQRR 360
ELLFNEVVIM RDYQHENVVE MYNSYLVGDE LWVVMEFLEG GALTDIVTHT RMNEEQIAAV 420
CLAVLQALSV LHAQGVIHRD IKSDSILLTH DGRVKLSDFG FCAQVSKEVP RRKSLVGTPY 480
WMAPELISRL PYGPEVDIWS LGIMVIEMVD GEPPYFNEPP LKAMKMIRDN LPPRLKNLHK 540
VSPSLKGFLD RLLVRDPAQR ATAAELLKHP FLAKAGPPAS IVPLMRQNRT R 591 
Gene Ontology
 GO:0005794; C:Golgi apparatus; TAS:ProtInc.
 GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
 GO:0004672; F:protein kinase activity; NAS:ProtInc.
 GO:0004674; F:protein serine/threonine kinase activity; IEA:UniProtKB-KW.
 GO:0006915; P:apoptotic process; TAS:UniProtKB.
 GO:0007049; P:cell cycle; IEA:UniProtKB-KW.
 GO:0016049; P:cell growth; TAS:UniProtKB.
 GO:0016477; P:cell migration; TAS:UniProtKB.
 GO:0008283; P:cell proliferation; TAS:UniProtKB.
 GO:0007010; P:cytoskeleton organization; TAS:UniProtKB.
 GO:0007165; P:signal transduction; TAS:UniProtKB. 
Interpro
 IPR011009; Kinase-like_dom.
 IPR000095; PAK_box_Rho-bd.
 IPR000719; Prot_kinase_cat_dom.
 IPR017441; Protein_kinase_ATP_BS.
 IPR002290; Ser/Thr_dual-sp_kinase_dom. 
Pfam
 PF00786; PBD
 PF00069; Pkinase 
SMART
 SM00285; PBD
 SM00220; S_TKc 
PROSITE
 PS50108; CRIB
 PS00107; PROTEIN_KINASE_ATP
 PS50011; PROTEIN_KINASE_DOM
 PS00108; PROTEIN_KINASE_ST 
PRINTS