HBEGF is a growth factor that mediates its effects via EGFR, ERBB2 and ERBB4. It is required for normal cardiac valve formation and normal heart function. HBEGF promotes smooth muscle cell proliferation. It may be involved in macrophage-mediated cellular proliferation. It is mitogenic for fibroblasts, but not endothelial cells. It is able to bind EGF receptor/EGFR with higher affinity than EGF itself and is a far more potent mitogen for smooth muscle cells than EGF. It also acts as a diphtheria toxin receptor.
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Protein Aliases: Diphtheria toxin receptor; diphtheria toxin receptor (heparin-binding EGF-like growth factor); diphtheria toxin receptor (heparin-binding epidermal growth factor-like growth factor); DT-R; DTR; DTS; DTSF; HB-EGF; HEGFL; Heparin-binding EGF-like growth factor; heparin-binding epidermal growth factor; Proheparin-binding EGF-like growth factor
Gene Aliases: DTR; DTS; DTSF; HBEGF; HEGFL
UniProt ID: (Human) Q99075
Entrez Gene ID: (Human) 1839