Reactome | Autocatalytic phosphorylation of FGFR1b

Autocatalytic phosphorylation of FGFR1b

Stable Identifier

R-HSA-190427

Type

Reaction [transition]

Species

Homo sapiens

Compartment

plasma membrane, cytosol, extracellular region

ReviewStatus

5/5

Locations in the PathwayBrowser

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Signal Transduction (Homo sapiens)

- Signaling by Receptor Tyrosine Kinases (Homo sapiens)
  - Signaling by FGFR (Homo sapiens)
    - Signaling by FGFR1 (Homo sapiens)
      - FGFR1 ligand binding and activation (Homo sapiens)
        
        FGFR1b ligand binding and activation (Homo sapiens)
        
        Autocatalytic phosphorylation of FGFR1b (Homo sapiens)

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Studies have mapped 8 tyrosine residues in the cytoplasmic domain of FGFR1 that are important for signaling. Autophosphorylation of residues 653 and 654, located in the activation loop of the kinase, is necessary to maintain the receptor in the active state. Phosphorylation of other tyrosine residues by the intrinsic protein tyrosine kinase activity of the activated receptor creates binding sites on its cytoplasmic tail for membrane bound docking proteins to gather intracellular signaling mediators.

Literature References

PubMed ID	Title	Journal	Year
8622701	Identification of six novel autophosphorylation sites on fibroblast growth factor receptor 1 and elucidation of their importance in receptor activation and signal transduction Burgess, WH, Jaye, M, Schlessinger, J, Sorokin, A, Dikic, I, Mohammadi, M	Mol Cell Biol	1996
16507368	Autophosphorylation of FGFR1 kinase is mediated by a sequential and precisely ordered reaction Schlessinger, J, Furdui, CM, Anderson, KS, Lew, ED	Mol Cell	2006
1379698	Point mutation in FGF receptor eliminates phosphatidylinositol hydrolysis without affecting mitogenesis Dionne, CA, Jaye, M, Li, N, Schlessinger, J, Honegger, AM, Mohammadi, M, Spivak, T, Li, W	Nature	1992
1656221	A tyrosine-phosphorylated carboxy-terminal peptide of the fibroblast growth factor receptor (Flg) is a binding site for the SH2 domain of phospholipase C-gamma 1 Bellot, F, Dionne, CA, Jaye, M, Schlessinger, J, Rotin, D, Honegger, AM, Rubinstein, M, Mohammadi, M, Fischer, R, Li, W	Mol Cell Biol	1991