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Collapse Statistics
226 human active and 11 inactive phosphatases in total;
194 phosphatases have substrate data;
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305 protein substrates;
89 non-protein substrates;
1114 dephosphorylation interactions;
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213 KEGG pathways;
206 NCI Nature PID pathways
560 Reactome pathways;
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last update: 18 Feb, 2016

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PYK2

Gene Name PTK2B (QuickGO)

PDB ID: 2FO6
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SynonymsPTK2B FAK2 PYK2 RAFTK
Protein NamePYK2
Alternative Name(s)
Protein-tyrosine kinase 2-beta (EC 2.7.10.2) (Calcium-dependent tyrosine kinase) (CADTK) (Cell adhesion kinase beta) (CAK-beta) (Focal adhesion kinase 2) (FADK 2) (Proline-rich tyrosine kinase 2) (Related adhesion focal tyrosine kinase) (RAFTK)
Protein FamilyProtein kinase superfamily, Tyr protein kinase family, FAK subfamily
EntrezGene ID2185
UniProt AC (Human)Q14289 (protein sequence)
Enzyme ClassEC 2.7.10.2 (BRENDA )
Molecular Weight115875
Protein Length1009
Protein DomainInterPro | Pfam3D Structure * PDB | PDBe | DrugPort
* ModBase | SwissModel
Localization (UniProt annotation)Cytoplasm. Cell membrane.
Gene ExpressionGene Expression Atlas Function and DiseaseOMIM
Protein-protein Interaction Database STRING | IntAct | MINT
Kinase Database Phospho.ELM | PhosphoSite | NetworKIN
Function (UniProt annotation)
FUNCTION: Involved in calcium induced regulation of ion channel and activation of the map kinase signaling pathway. May represent an important signaling intermediate between neuropeptide activated receptors or neurotransmitters that increase calcium flux and the downstream signals that regulate neuronal activity. Interacts with the SH2 domain of Grb2. May phosphorylate the voltage-gated potassium channel protein Kv1.2. Its activation is highly correlated with the stimulation of c-Jun N-terminal kinase activity. Involved in osmotic stress-dependent SNCA 'Tyr-125' phosphorylation. In concert with SRC, plays an important role in osteoclastic bone resorption. Both the formation of a SRC-PTK2B complex, and SRC kinase activity are necessary for this function. The Tyr-402 phosphorylated form serves as a docking site for SRC and is important for the organization of the osteoclast actin cytoskeleton and attachment sites and for bone resorption (By similarity).
Catalytic Activity (UniProt annotation)
CATALYTIC ACTIVITY: ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate.
Protein Sequence
MSGVSEPLSR VKLGTLRRPE GPAEPMVVVP VDVEKEDVRI LKVCFYSNSF NPGKNFKLVK CTVQTEIREI ITSILLSGRI GPNIRLAECY GLRLKHMKSD EIHWLHPQMT VGEVQDKYEC LHVEAEWRYD LQIRYLPEDF MESLKEDRTT LLYFYQQLRN DYMQRYASKV SEGMALQLGC LELRRFFKDM PHNALDKKSN FELLEKEVGL DLFFPKQMQE NLKPKQFRKM IQQTFQQYAS LREEECVMKF FNTLAGFANI DQETYRCELI QGWNITVDLV IGPKGIRQLT SQDAKPTCLA EFKQIRSIRC LPLEEGQAVL QLGIEGAPQA LSIKTSSLAE AENMADLIDG YCRLQGEHQG SLIIHPRKDG EKRNSLPQIP MLNLEARRSH LSESCSIESD IYAEIPDETL RRPGGPQYGI AREDVVLNRI LGEGFFGEVY EGVYTNHKGE KINVAVKTCK KDCTLDNKEK FMSEAVIMKN LDHPHIVKLI GIIEEEPTWI IMELYPYGEL GHYLERNKNS LKVLTLVLYS LQICKAMAYL ESINCVHRDI AVRNILVASP ECVKLGDFGL SRYIEDEDYY KASVTRLPIK WMSPESINFR RFTTASDVWM FAVCMWEILS FGKQPFFWLE NKDVIGVLEK GDRLPKPDLC PPVLYTLMTR CWDYDPSDRP RFTELVCSLS DVYQMEKDIA MEQERNARYR TPKILEPTAF QEPPPKPSRP KYRPPPQTNL LAPKLQFQVP EGLCASSPTL TSPMEYPSPV NSLHTPPLHR HNVFKRHSMR EEDFIQPSSR EEAQQLWEAE KVKMRQILDK QQKQMVEDYQ WLRQEEKSLD PMVYMNDKSP LTPEKEVGYL EFTGPPQKPP RLGAQSIQPT ANLDRTDDLV YLNVMELVRA VLELKNELCQ LPPEGYVVVV KNVGLTLRKL IGSVDDLLPS LPSSSRTEIE GTQKLLNKDL AELINKMRLA QQNAVTSLSE ECKRQMLTAS HTLAVDAKNL LDAVDQAKVL ANLAHPPAE
ELM motif
LIG_SH2_GRB2GRB2-like Src Homology 2 (SH2) domains binding motif.
LIG_SH2_SRCSrc-family Src Homology 2 (SH2) domains binding motif.
Gene Ontology
GO:0005524ATP binding
GO:0006915apoptosis
GO:0045453bone resorption
GO:0005829cytosol
GO:0004715non-membrane spanning protein tyrosine kinase activity
GO:0008284positive regulation of cell proliferation
GO:0007172signal complex assembly
GO:0004871signal transducer activity

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