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- Table of Contents
1 Citations
2 Citations 11 Q&As
3 Citations 6 Q&As
2 Citations 3 Q&As
Facts about Fibroblast growth factor 1.
Acts as a ligand for FGFR1 and integrins. Binds to FGFR1 in the presence of heparin leading to FGFR1 dimerization and activation via sequential autophosphorylation on tyrosine residues which act as docking sites for interacting proteins, leading to the activation of several signaling cascades.
Human | |
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Gene Name: | FGF1 |
Uniprot: | P05230 |
Entrez: | 2246 |
Belongs to: |
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heparin-binding growth factors family |
AFGF; alpha; alpha-ECGF; beta-ECGF; ECGF; ECGFB; ECGF-betaAcidic fibroblast growth factor; endothelial cell growth factor, beta; FGF acidic; FGF-1; FGFABeta-endothelial cell growth factor; FGF-alpha; fibroblast growth factor 1 (acidic); GLIO703; HBGF1; HBGF-1; heparin-binding growth factor 1
Mass (kDA):
17.46 kDA
Human | |
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Location: | 5q31.3 |
Sequence: | 5; NC_000005.10 (142592178..142698070, complement) |
Predominantly expressed in kidney and brain. Detected at much lower levels in heart and skeletal muscle.
Secreted. Cytoplasm. Cytoplasm, cell cortex. Cytoplasm, cytosol. Nucleus. Lacks a cleavable signal sequence. Within the cytoplasm, it is transported to the cell membrane and then secreted by a non-classical pathway that requires Cu(2+) ions and S100A13. Secreted in a complex with SYT1 (By similarity). Binding of exogenous FGF1 to FGFR facilitates endocytosis followed by translocation of FGF1 across endosomal membrane into the cytosol. Nuclear import from the cytosol requires the classical nuclear import machinery, involving proteins KPNA1 and KPNB1, as well as LRRC59.
PMID: 3523756 by Jaye M., et al. Human endothelial cell growth factor: cloning, nucleotide sequence, and chromosome localization.
PMID: 2590193 by Mergia A., et al. Structural analysis of the gene for human acidic fibroblast growth factor.
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