ERBB Receptor Feedback Inhibitor 1 (ERRFI1) Antibody – Rabbit Polyclonal

ERRFI1 is a cytoplasmic protein whose expression is upregulated with cell growth (Wick et al., 1995 [PubMed 7641805]). It shares significant homology with the protein product of rat gene-33, which is induced during cell stress and mediates cell signaling (Makkinje et al., 2000 [PubMed 10749885]; Fiorentino et al., 2000 [PubMed 11003669]).[supplied by OMIM, Mar 2008]

MIG-6: Negative regulator of EGFR signaling in skin morphogenesis. Acts as a negative regulator for several EGFR family members, including ERBB2, ERBB3 and ERBB4. Inhibits EGFR catalytic activity by interfering with its dimerization. Inhibits autophosphorylation of EGFR, ERBB2 and ERBB4. Important for normal keratinocyte proliferation and differentiation. Plays a role in modulating the response to steroid hormones in the uterus. Required for normal response to progesterone in the uterus and for fertility. Mediates epithelial estrogen responses in the uterus by regulating ESR1 levels and activation. Important for regulation of endometrium cell proliferation. Important for normal prenatal and perinatal lung development. Interacts with ERBB2. Interacts with EGFR. Levels are very low in quiescent cells. Up-regulated by mitogens. Belongs to the MIG6 family.

Protein type: Tumor suppressor; Inhibitor

Chromosomal Location of Human Ortholog: 1p36

Cellular Component: extrinsic to internal side of plasma membrane; cytoplasm; nucleus

Molecular Function: protein binding; protein kinase binding

Biological Process: negative regulation of epidermal growth factor receptor activity; skin morphogenesis; response to stress; negative regulation of protein amino acid autophosphorylation; alveolus development; regulation of keratinocyte differentiation