EGF Active Protein

EGF: EGF stimulates the growth of various epidermal and epithelial tissues in vivo and in vitro and of some fibroblasts in cell culture. Magnesiotropic hormone that stimulates magnesium reabsorption in the renal distal convoluted tubule via engagement of EGFR and activation of the magnesium channel TRPM6. Defects in EGF are the cause of hypomagnesemia type 4 (HOMG4); also known as renal hypomagnesemia normocalciuric. HOMG4 is a disorder characterized by massive renal hypomagnesemia and normal levels of serum calcium and calcium excretion. Clinical features include seizures, mild-to mederate psychomotor retardation, and brisk tendon reflexes. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral; Hormone; Ligand, receptor tyrosine kinase

Cellular Component: extracellular space; lysosomal membrane; plasma membrane; integral to membrane; intracellular

Molecular Function: growth factor activity; calcium ion binding; epidermal growth factor receptor binding

Biological Process: epidermal growth factor receptor signaling pathway; peptidyl-tyrosine phosphorylation; activation of MAPKK activity; positive regulation of mitosis; positive regulation of transcription, DNA-dependent; regulation of protein transport; positive regulation of MAP kinase activity; regulation of protein secretion; branching morphogenesis of a tube; positive regulation of epidermal growth factor receptor activity; positive regulation of cell proliferation; negative regulation of secretion; angiogenesis; regulation of peptidyl-tyrosine phosphorylation; positive regulation of phosphorylation; STAT protein nuclear translocation; positive regulation of DNA binding; positive regulation of granule cell precursor proliferation