Fibroblast Growth Factor (FGF) receptors are a family of receptor tyrosine kinases that play a crucial role in various cellular processes. These receptors are integral membrane proteins that bind to FGFs, initiating a cascade of downstream signaling pathways. There are four main types of FGF receptors: FGFR1, FGFR2, FGFR3, and FGFR4, each with distinct but overlapping functions.
