BioPAX pathway converted from "Ubiquitination of PAK-2p34" in the Reactome database.LEFT-TO-RIGHT6.3.2.19Ubiquitination of PAK-2p34PAK-2p34 is ubiquitinated prior to degradation (Jakobi et al., 2003). Here, ubiquitination of PAK-2p34 is described as occurring in the cytosol. However, to date it is not known whether this occurs in the nucleus or in the cytoplasm. Evidence for this reaction comes from experiments using both human and rabbit proteins. The polyubiquitin synthesized in the reaction is inferred to contain lysine-48 (K48) linkages because the modified protein is targeted to the proteasome (Komander 2009).Authored: Jakobi, R, 2008-02-05 11:04:14Reviewed: Chang, E, 2008-05-21 00:05:41Edited: Matthews, L, 2008-02-03 20:50:13Edited: Matthews, L, 2008-05-23 07:04:34p-T402-PAK-2p34p-T402-PAK2(213-524)phospho-PAK-2p34 (Thr 402)Reactome DB_ID: 211654cytosolGENE ONTOLOGYGO:0005829UniProt:Q13177 PAK2PAK2FUNCTION Serine/threonine protein kinase that plays a role in a variety of different signaling pathways including cytoskeleton regulation, cell motility, cell cycle progression, apoptosis or proliferation. Acts as downstream effector of the small GTPases CDC42 and RAC1. Activation by the binding of active CDC42 and RAC1 results in a conformational change and a subsequent autophosphorylation on several serine and/or threonine residues. Full-length PAK2 stimulates cell survival and cell growth. Phosphorylates MAPK4 and MAPK6 and activates the downstream target MAPKAPK5, a regulator of F-actin polymerization and cell migration. Phosphorylates JUN and plays an important role in EGF-induced cell proliferation. Phosphorylates many other substrates including histone H4 to promote assembly of H3.3 and H4 into nucleosomes, BAD, ribosomal protein S6, or MBP. Additionally, associates with ARHGEF7 and GIT1 to perform kinase-independent functions such as spindle orientation control during mitosis. On the other hand, apoptotic stimuli such as DNA damage lead to caspase-mediated cleavage of PAK2, generating PAK-2p34, an active p34 fragment that translocates to the nucleus and promotes cellular apoptosis involving the JNK signaling pathway. Caspase-activated PAK2 phosphorylates MKNK1 and reduces cellular translation.ACTIVITY REGULATION Activated by binding small G proteins. Binding of GTP-bound CDC42 or RAC1 to the autoregulatory region releases monomers from the autoinhibited dimer, enables phosphorylation of Thr-402 and allows the kinase domain to adopt an active structure (By similarity). Following caspase cleavage, autophosphorylated PAK-2p34 is constitutively active.SUBUNIT Interacts tightly with GTP-bound but not GDP-bound CDC42/p21 and RAC1. Interacts with SH3MD4. Interacts with SCRIB. Interacts with ARHGEF7 and GIT1. PAK-2p34 interacts with ARHGAP10 (PubMed:15471851, PubMed:16374509, PubMed:18716323, PubMed:19273597). Interacts with RAC1 (PubMed:20696164).SUBUNIT (Microbial infection) Interacts with and activated by HIV-1 Nef.TISSUE SPECIFICITY Ubiquitously expressed. Higher levels seen in skeletal muscle, ovary, thymus and spleen.PTM Full-length PAK2 is autophosphorylated when activated by CDC42/p21. Following cleavage, both peptides, PAK-2p27 and PAK-2p34, become highly autophosphorylated, with PAK-2p27 being phosphorylated on serine and PAK-2p34 on threonine residues, respectively. Autophosphorylation of PAK-2p27 can occur in the absence of any effectors and is dependent on phosphorylation of Thr-402, because PAK-2p27 is acting as an exogenous substrate.PTM During apoptosis proteolytically cleaved by caspase-3 or caspase-3-like proteases to yield active PAK-2p34.PTM Ubiquitinated, leading to its proteasomal degradation.PTM PAK-2p34 is myristoylated.SIMILARITY Belongs to the protein kinase superfamily. STE Ser/Thr protein kinase family. STE20 subfamily.Homo sapiensNCBI Taxonomy9606UniProtQ13177402EQUALO-phospho-L-threonineMODMOD:00047213EQUAL524EQUALReactome Database ID Release 75211654Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=211654ReactomeR-HSA-2116541Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-211654.1Reactomehttp://www.reactome.orgConverted from EntitySet in ReactomeUbubiquitinReactome DB_ID: 113595RPS27ARPS27A(1-76)ubiquitin (RPS27A)Reactome DB_ID: 939205UniProt:P62979 RPS27ARPS27AUBA80UBCEP1SUBUNIT Ribosomal protein S27a is part of the 40S ribosomal subunit.MISCELLANEOUS Ubiquitin is encoded by 4 different genes. UBA52 and RPS27A genes code for a single copy of ubiquitin fused to the ribosomal proteins L40 and S27a, respectively. UBB and UBC genes code for a polyubiquitin precursor with exact head to tail repeats, the number of repeats differ between species and strains.MISCELLANEOUS For a better understanding, features related to ubiquitin are only indicated for the first chain.SIMILARITY In the N-terminal section; belongs to the ubiquitin family.SIMILARITY In the C-terminal section; belongs to the eukaryotic ribosomal protein eS31 family.UniProtP629791EQUAL76EQUALReactome Database ID Release 75939205Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939205ReactomeR-HSA-9392051Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939205.1UBA52UBA52(1-76)ubiquitin (UBA52)Reactome DB_ID: 939203UniProt:P62987 UBA52UBA52UBCEP2SUBUNIT Ribosomal protein L40 is part of the 60S ribosomal subunit. Interacts with UBQLN1 (via UBA domain).MISCELLANEOUS Ubiquitin is encoded by 4 different genes. UBA52 and RPS27A genes code for a single copy of ubiquitin fused to the ribosomal proteins L40 and S27a, respectively. UBB and UBC genes code for a polyubiquitin precursor with exact head to tail repeats, the number of repeats differ between species and strains.MISCELLANEOUS For a better understanding, features related to ubiquitin are only indicated for the first chain.SIMILARITY In the N-terminal section; belongs to the ubiquitin family.SIMILARITY In the C-terminal section; belongs to the eukaryotic ribosomal protein eL40 family.UniProtP629871EQUAL76EQUALReactome Database ID Release 75939203Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939203ReactomeR-HSA-9392031Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939203.1UBBUBB(1-76)ubiquitin (UBB 1)Reactome DB_ID: 939214UniProt:P0CG47 UBBUBBSUBUNIT Interacts with SKP1-KMD2A and SKP1-KMD2B complexes.MISCELLANEOUS Ubiquitin is encoded by 4 different genes. UBA52 and RPS27A genes code for a single copy of ubiquitin fused to the ribosomal proteins L40 and S27a, respectively. UBB and UBC genes code for a polyubiquitin precursor with exact head to tail repeats, the number of repeats differ between species and strains.MISCELLANEOUS The mRNA encoding variant UBB(+1) is produced by an unknown mechanism involving the deletion of a GT dinucleotide in the close proximity of a GAGAG motif (PubMed:9422699). This variant mRNA is found in normal brain, but the encoded protein accumulates only in brain neurofibrillary tangles and neuritic plaques in Alzheimer disease and other tauopathies, as well as polyglutaminopathies (PubMed:14597671). UBB(+1) variant cannot be used for polyubiquitination, is not effectively degraded by the proteasome when ubiquitinated and ubiquitinated UBB(+1) is refractory to disassembly by deubiquitinating enzymes (DUBs). In healthy brain, UBB(+1) C-terminus can be cleaved by UCHL3 (PubMed:21762696).MISCELLANEOUS For a better understanding, features related to ubiquitin are only indicated for the first chain.SIMILARITY Belongs to the ubiquitin family.UniProtP0CG471EQUAL76EQUALReactome Database ID Release 75939214Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939214ReactomeR-HSA-9392141Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939214.1UBB(77-152)ubiquitin (UBB 2)Reactome DB_ID: 93921377EQUAL152EQUALReactome Database ID Release 75939213Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939213ReactomeR-HSA-9392131Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939213.1UBB(153-228)ubiquitin (UBB 3)Reactome DB_ID: 939230153EQUAL228EQUALReactome Database ID Release 75939230Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939230ReactomeR-HSA-9392301Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939230.1UBCUBC(1-76)ubiquitin (UBC 1)Reactome DB_ID: 939188UniProt:P0CG48 UBCUBCMISCELLANEOUS Ubiquitin is encoded by 4 different genes. UBA52 and RPS27A genes code for a single copy of ubiquitin fused to the ribosomal proteins L40 and S27a, respectively. UBB and UBC genes code for a polyubiquitin precursor with exact head to tail repeats, the number of repeats differ between species and strains.MISCELLANEOUS For the sake of clarity sequence features are annotated only for the first chain, and are not repeated for each of the following chains.SIMILARITY Belongs to the ubiquitin family.UniProtP0CG481EQUAL76EQUALReactome Database ID Release 75939188Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939188ReactomeR-HSA-9391881Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939188.1UBC(77-152)ubiquitin (UBC 2)Reactome DB_ID: 93916477EQUAL152EQUALReactome Database ID Release 75939164Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939164ReactomeR-HSA-9391641Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939164.1UBC(153-228)ubiquitin (UBC 3)Reactome DB_ID: 939258153EQUAL228EQUALReactome Database ID Release 75939258Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939258ReactomeR-HSA-9392581Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939258.1UBC(229-304)ubiquitin (UBC 4)Reactome DB_ID: 939192229EQUAL304EQUALReactome Database ID Release 75939192Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939192ReactomeR-HSA-9391921Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939192.1UBC(305-380)ubiquitin (UBC 5)Reactome DB_ID: 939232305EQUAL380EQUALReactome Database ID Release 75939232Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939232ReactomeR-HSA-9392321Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939232.1UBC(381-456)ubiquitin (UBC 6)Reactome DB_ID: 939191381EQUAL456EQUALReactome Database ID Release 75939191Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939191ReactomeR-HSA-9391911Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939191.1UBC(457-532)ubiquitin (UBC 7)Reactome DB_ID: 939184457EQUAL532EQUALReactome Database ID Release 75939184Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939184ReactomeR-HSA-9391841Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939184.1UBC(533-608)ubiquitin (UBC 8)Reactome DB_ID: 939239533EQUAL608EQUALReactome Database ID Release 75939239Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939239ReactomeR-HSA-9392391Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939239.1UBC(609-684)ubiquitin (UBC 9)Reactome DB_ID: 939165609EQUAL684EQUALReactome Database ID Release 75939165Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=939165ReactomeR-HSA-9391651Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-939165.1Reactome Database ID Release 75113595Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=113595ReactomeR-HSA-1135951Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-113595.1K48polyUb-p-T402-PAK-2p43K48polyUb-phospho-PAK-2p34(Thr402)Reactome DB_ID: 3095873ubiquitinylated lysineMODMOD:01148213EQUAL524EQUALReactome Database ID Release 753095873Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=3095873ReactomeR-HSA-30958731Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-3095873.1ACTIVATIONUbiquitin ligaseReactome DB_ID: 69593Reactome Database ID Release 7569593Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=69593ReactomeR-HSA-695932Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-69593.2ChEBI36080additional informationMIMI:0361GENE ONTOLOGYGO:0004842gene ontology term for cellular functionMIMI:0355Same Catalyst ActivityReactome Database ID Release 7569594Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=69594Reactome Database ID Release 75211734Database identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser?DB=gk_current&ID=211734ReactomeR-HSA-2117341Reactome stable identifier. Use this URL to connect to the web page of this instance in Reactome: http://www.reactome.org/cgi-bin/eventbrowser_st_id?ST_ID=R-HSA-211734.112853446Pubmed2003Caspase-activated PAK-2 is regulated by subcellular targeting and proteasomal degradationJakobi, RMcCarthy, CCKoeppel, MAStringer, DKJ Biol Chem 278:38675-8519754430Pubmed2009The emerging complexity of protein ubiquitinationKomander, DavidBiochem. Soc. Trans. 37:937-53