Details of the Drug Therapeutic Target (DTT)

General Information of Drug Therapeutic Target (DTT) (ID: TT5BR7T)

• DTT Name: Fibroblast growth factor receptor 4 (FGFR4)
• Synonyms: TKF; JTK2; FGFR-4; CD334
• Gene Name: FGFR4
• DTT Type: Clinical trial target; [1]
• BioChemical Class: Kinase
• UniProt ID: FGFR4_HUMAN
• TTD ID: T90989
• EC Number: EC 2.7.10.1
• Sequence:
  MRLLLALLGVLLSVPGPPVLSLEASEEVELEPCLAPSLEQQEQELTVALGQPVRLCCGRA
  ERGGHWYKEGSRLAPAGRVRGWRGRLEIASFLPEDAGRYLCLARGSMIVLQNLTLITGDS
  LTSSNDDEDPKSHRDPSNRHSYPQQAPYWTHPQRMEKKLHAVPAGNTVKFRCPAAGNPTP
  TIRWLKDGQAFHGENRIGGIRLRHQHWSLVMESVVPSDRGTYTCLVENAVGSIRYNYLLD
  VLERSPHRPILQAGLPANTTAVVGSDVELLCKVYSDAQPHIQWLKHIVINGSSFGADGFP
  YVQVLKTADINSSEVEVLYLRNVSAEDAGEYTCLAGNSIGLSYQSAWLTVLPEEDPTWTA
  AAPEARYTDIILYASGSLALAVLLLLAGLYRGQALHGRHPRPPATVQKLSRFPLARQFSL
  ESGSSGKSSSSLVRGVRLSSSGPALLAGLVSLDLPLDPLWEFPRDRLVLGKPLGEGCFGQ
  VVRAEAFGMDPARPDQASTVAVKMLKDNASDKDLADLVSEMEVMKLIGRHKNIINLLGVC
  TQEGPLYVIVECAAKGNLREFLRARRPPGPDLSPDGPRSSEGPLSFPVLVSCAYQVARGM
  QYLESRKCIHRDLAARNVLVTEDNVMKIADFGLARGVHHIDYYKKTSNGRLPVKWMAPEA
  LFDRVYTHQSDVWSFGILLWEIFTLGGSPYPGIPVEELFSLLREGHRMDRPPHCPPELYG
  LMRECWHAAPSQRPTFKQLVEALDKVLLAVSEEYLDLRLTFGPYSPSGGDASSTCSSSDS
  VFSHDPLPLGSSSFPFGSGVQT
• Function: Required for normal down-regulation of the expression of CYP7A1, the rate-limiting enzyme in bile acid synthesis, in response to FGF19. Phosphorylates PLCG1 and FRS2. Ligand binding leads to the activation of several signaling cascades. Activation of PLCG1 leads to the production of the cellular signaling molecules diacylglycerol and inositol 1,4,5-trisphosphate. Phosphorylation of FRS2 triggers recruitment of GRB2, GAB1, PIK3R1 and SOS1, and mediates activation of RAS, MAPK1/ERK2, MAPK3/ERK1 and the MAP kinase signaling pathway, as well as of the AKT1 signaling pathway. Promotes SRC-dependent phosphorylation of the matrix protease MMP14 and its lysosomal degradation. FGFR4 signaling is down-regulated by receptor internalization and degradation; MMP14 promotes internalization and degradation of FGFR4. Mutations that lead to constitutive kinase activation or impair normal FGFR4 inactivation lead to aberrant signaling. Tyrosine-protein kinase that acts as cell-surface receptor for fibroblast growth factors and plays a role in the regulation of cell proliferation, differentiation and migration, and in regulation of lipid metabolism, bile acid biosynthesis, glucose uptake, vitamin D metabolism and phosphate homeostasis.
• KEGG Pathway:
  MAPK signaling pathway (hsa04010)
  Ras signaling pathway (hsa04014)
  Rap1 signaling pathway (hsa04015)
  Endocytosis (hsa04144)
  PI3K-Akt signaling pathway (hsa04151)
  Signaling pathways regulating pluripotency of stem cells (hsa04550)
  Regulation of actin cytoskeleton (hsa04810)
• Reactome Pathway:
  PIP3 activates AKT signaling (R-HSA-1257604)
  FGFR4 ligand binding and activation (R-HSA-190322)
  Constitutive Signaling by Aberrant PI3K in Cancer (R-HSA-2219530)
  Phospholipase C-mediated cascade (R-HSA-5654228)
  FRS-mediated FGFR4 signaling (R-HSA-5654712)
  SHC-mediated cascade (R-HSA-5654719)
  PI-3K cascade (R-HSA-5654720)
  Negative regulation of FGFR4 signaling (R-HSA-5654733)
  RAF/MAP kinase cascade (R-HSA-5673001)
  PI3K Cascade (R-HSA-109704)

Molecular Interaction Atlas (MIA) of This DTT

1 Clinical Trial Drug(s) Targeting This DTT

Drug Name	Drug ID	Indication	ICD 11	Highest Status	REF
INCB62079	DMQO5UF	Liver cancer	2C12	Phase 1/2	[2]

2 Investigative Drug(s) Targeting This DTT

Drug Name	Drug ID	Indication	ICD 11	Highest Status	REF
ABC-4	DMA01OF	Solid tumour/cancer	2A00-2F9Z	Investigative	[1]
ACTB-1003	DMPHSU8	Solid tumour/cancer	2A00-2F9Z	Investigative	[1]

References

• [1] URL: http://www.guidetopharmacology.org 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: 1811).
• [2] Clinical pipeline report, company report or official report of the Pharmaceutical Research and Manufacturers of America (PhRMA)