TEC - Tyrosine-protein kinase Tec - human protein (Function)
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TEC »  Tyrosine-protein kinase Tec   [ EC ]
Gene name:  TEC
Entry whose protein(s) existence is based on evidence at protein level
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Non-receptor tyrosine kinase that contributes to signaling from many receptors and participates as a signal transducer in multiple downstream pathways, including regulation of the actin cytoskeleton. Plays a redundant role to ITK in regulation of the adaptive immune response. Regulates the development, function and differentiation of conventional T-cells and nonconventional NKT-cells. Required for TCR-dependent IL2 gene induction. Phosphorylates DOK1, one CD28-specific substrate, and contributes to CD28-signaling. Mediates signals that negatively regulate IL2RA expression induced by TCR cross-linking. Plays a redundant role to BTK in BCR-signaling for B-cell development and activation, especially by phosphorylating STAP1, a BCR-signaling protein. Required in mast cells for efficient cytokine production. Involved in both growth and differentiation mechanisms of myeloid cells through activation by the granulocyte colony-stimulating factor CSF3, a critical cytokine to promoting the growth, differentiation, and functional activation of myeloid cells. Participates in platelet signaling downstream of integrin activation. Cooperates with JAK2 through reciprocal phosphorylation to mediate cytokine-driven activation of FOS transcription. GRB10, a negative modifier of the FOS activation pathway, is another substrate of TEC. TEC is involved in G protein-coupled receptor- and integrin-mediated signalings in blood platelets. Plays a role in hepatocyte proliferation and liver regeneration and is involved in HGF-induced ERK signaling pathway. TEC regulates also FGF2 unconventional secretion (endoplasmic reticulum (ER)/Golgi-independent mechanism) under various physiological conditions through phosphorylation of FGF2 'Tyr-215'. May also be involved in the regulation of osteoclast differentiation.  
  • CuratedUniProtKB
GO molecular function 
ATP bindingdefinition[GO:0005524]  
  • IEAUniProtKB KW
Lipid bindingdefinition[GO:0008289]  
  • IEAUniProtKB KW
Metal ion bindingdefinition[GO:0046872]  
  • IEAUniProtKB KW
Non-membrane spanning protein tyrosine kinase activitydefinition[GO:0004715]  
  • IDAUniProtKB
Protein bindingdefinition[GO:0005515]  
  • IPIIntAct
GO biological process 
B cell receptor signaling pathwaydefinition[GO:0050853]  
  • IDAUniProtKB
Integrin-mediated signaling pathwaydefinition[GO:0007229]  
  • IDAUniProtKB
Intracellular signal transductiondefinition[GO:0035556] silver  
  • IEAInterPro 2 GO
Peptidyl-tyrosine phosphorylationdefinition[GO:0018108]  
  • IEAUniProtKB KW
  • IEAInterPro 2 GO
  • IEAEC 2 GO
Protein phosphorylationdefinition[GO:0006468]  
Regulation of platelet activationdefinition[GO:0010543]  
  • IDAUniProtKB
Tissue regenerationdefinition[GO:0042246] silver  
  • IEAOrtholog Compara
Enzymatic activity 
This protein acts as an enzyme. It is known to catalyze the following reaction
EC ATP + a [protein]-L-tyrosine ADP + a [protein]-L-tyrosine phosphate.  
  • CuratedUniProtKB
It requires the following cofactor
Binds 1 zinc ion per subunit (By similarity).  
  • CuratedUniProtKB
It is regulated in the following manner
Activated by tyrosine phosphorylation by a wide range of cytokine stimulations. When T-cells or B-cells receptors are activated, a series of phosphorylation leads to the recruitment of TEC to the cell membrane, where it is phosphorylated at Tyr-519. Also activated in response to SCF. Integrin engagement induces tyrosine phosphorylation of TEC in platelets. STAP1 participates in a positive feedback loop by increasing the activity of TEC. SOCS1 is an inhibitor of TEC kinase activity.  
  • CuratedUniProtKB
More information is available from:
According to KEGG, this protein belongs to the following pathways:
Osteoclast differentiation  hsa04380+7006  
T cell receptor signaling pathway  hsa04660+7006  
According to Reactome, this protein belongs to the following pathways:
FCERI mediated Ca+2 mobilization  REACT_163834  
Interleukin-3, 5 and GM-CSF signaling  REACT_23837  
Signaling by SCF-KIT  REACT_111040  


Biological process 
Adaptive immunity  definition   [KW-1064]
Immunity  definition   [KW-0391]
Molecular function 
Kinase  definition   [KW-0418]
Transferase  definition   [KW-0808]
Tyrosine-protein kinase  definition   [KW-0829]
Technical term 
Reference proteome  definition   [KW-1185]

Further external links

GeneWiki: TEC_(gene)
GenomeRNAi: 7006
PRO: PR:P42680