The FGR protein is a non-receptor tyrosine protein kinase that mediates immune regulation in various cell types. It transmits signals from receptors lacking kinase activity, affecting cytoskeletal remodeling, phagocytosis, adhesion, and migration. FGR Protein, Human (sf9, GST) is the recombinant human-derived FGR protein, expressed by sf9 insect cells , with N-GST labeled tag.