Target General Infomation
Target ID
Former ID
Target Name
Angiopoietin 1 receptor
Gene Name
CD202b antigen; Endothelial Cell-Specific Receptor TIE-2; P140 TEK; Tunica interna endothelial cell kinase; Tyrosine-protein kinase receptor TEK; Tyrosine-protein kinase receptor TIE-2; TEK
Target Type
Clinical Trial
Disease Arthritis; Myelodysplastic syndrome [ICD9:710-719, 238.7; ICD10: M00-M25, D46]
Cancer [ICD9: 140-229; ICD10: C00-C96]
Ischemia [ICD9: 459.89; ICD10: I99.8]
Solid tumours [ICD9: 140-199, 210-229; ICD10: C00-D48]
Tyrosine-protein kinase that acts as cell-surface receptor for ANGPT1, ANGPT2 and ANGPT4 and regulates angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton, but also maintenance of vascular quiescence. Has anti-inflammatory effects by preventing the leakage of proinflammatory plasma proteins and leukocytes from blood vessels. Required for normal angiogenesis and heart development during embryogenesis. Required for post- natal hematopoiesis. After birth, activates or inhibits angiogenesis, depending on the context. Inhibits angiogenesis and promotes vascular stability in quiescent vessels, where endothelial cells have tight contacts. In quiescent vessels, ANGPT1 oligomers recruit TEK to cell-cell contacts, forming complexes with TEK molecules from adjoiningcells, and this leads to preferential activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascades. In migrating endothelial cells that lack cell-cell adhesions, ANGT1 recruits TEK to contacts with the extracellular matrix, leading to the formation of focal adhesion complexes, activation of PTK2/FAK and of the downstream kinases MAPK1/ERK2 and MAPK3/ERK1, and ultimately to the stimulation of sprouting angiogenesis. ANGPT1 signaling triggers receptor dimerization and autophosphorylation at specific tyrosine residues that then serve as binding sites for scaffold proteins and effectors. Signaling is modulated by ANGPT2 that has lower affinity for TEK, can promote TEK autophosphorylation in the absence of ANGPT1, but inhibits ANGPT1-mediated signaling by competing for the same binding site. Signaling is also modulated by formation of heterodimers with TIE1, and by proteolytic processing that gives rise to a soluble TEK extracellular domain. The soluble extracellular domain modulates signaling by functioning as decoy receptor for angiopoietins. TEK phosphorylates DOK2, GRB7, GRB14, PIK3R1; SHC1 and TIE1.
BioChemical Class
Target Validation
UniProt ID
EC Number
1FVR; 2GY5; 2GY7; 2OO8; 2OSC; 2P4I; 2WQB; 3BEA; 3L8P; 4K0V; 4X3J
Drugs and Mode of Action
Drug(s) Altiratinib Drug Info Phase 1 Solid tumours [549538]
CEP-11981 Drug Info Phase 1 Solid tumours [522626], [542989]
ARRY-614 Drug Info Discontinued in Phase 1 Arthritis; Myelodysplastic syndrome [548520]
Inhibitor (4-Phenoxy-phenyl)-quinazolin-4-yl-amine Drug Info [525876]
3,4-di-(4-methoxyphenyl)-1H-pyrrole-2,5-dione Drug Info [528032]
3,4-diphenyl-1H-pyrrole-2,5-dione Drug Info [528032]
3-(4-methoxyphenyl)-4-phenyl-1H-pyrrole-2,5-dione Drug Info [528032]
3-(indole-3-yl)-4-phenyl-1H-pyrrole-2,5-dione Drug Info [528032]
A-420983 Drug Info [527057]
Altiratinib Drug Info [550598]
compound 8h Drug Info [531471]
Tie-2 inhibitors Drug Info [543511]
Modulator AP-101 Drug Info [543511]
ARRY-614 Drug Info
CEP-11981 Drug Info [543511]
Target Expression Profile (TEP) and Drug Resistance Mutation (DRM)
KEGG Pathway Ras signaling pathway
Rap1 signaling pathway
HIF-1 signaling pathway
PI3K-Akt signaling pathway
Rheumatoid arthritis
NetPath Pathway Wnt Signaling Pathway
PANTHER Pathway Angiogenesis
Pathway Interaction Database Angiopoietin receptor Tie2-mediated signaling
SHP2 signaling
Reactome Tie2 Signaling
RAF/MAP kinase cascade
WikiPathways Wnt Signaling Pathway Netpath
Cell surface interactions at the vascular wall
Ref (NCT00875264) Open-Label Study to Determine the Maximum Tolerated Oral Dose of the Kinase Inhibitor CEP-11981 in Patients With Advanced Cancer. U.S. National Institutes of Health.
Ref 542989( Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 8189).
Ref 548520Trusted, scientifically sound profiles of drug programs, clinical trials, safety reports, and company deals, written by scientists. Springer. 2015. Adis Insight (drug id 800026289)
Ref 549538Trusted, scientifically sound profiles of drug programs, clinical trials, safety reports, and company deals, written by scientists. Springer. 2015. Adis Insight (drug id 800040094)
Ref 525876Bioorg Med Chem Lett. 2000 Oct 2;10(19):2167-70.Pyrrolo[2,3-d]pyrimidines containing an extended 5-substituent as potent and selective inhibitors of lck I.
Ref 527057Bioorg Med Chem Lett. 2004 May 17;14(10):2613-6.A-420983: a potent, orally active inhibitor of lck with efficacy in a model of transplant rejection.
Ref 528032J Med Chem. 2006 Feb 23;49(4):1271-81.Design, synthesis, and biological evaluation of 3,4-diarylmaleimides as angiogenesis inhibitors.
Ref 531471Discovery of 5-(arenethynyl) hetero-monocyclic derivatives as potent inhibitors of BCR-ABL including the T315I gatekeeper mutant. Bioorg Med Chem Lett. 2011 Jun 15;21(12):3743-8.
Ref 543511( Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Target id: 1842).
Ref 550598Clinical pipeline report, company report or official report of Deciphera Pharmaceuticals.
Ref 1587926URL: The ChEMBL database in 2017

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