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Human / Rhesus HER4 / ErbB4 Protein (Fc Tag)

ALS19,HER4,p180erbB4

Catalog Number P10363-H02H
Organism Species Human
Host Human Cells
Synonyms ALS19,HER4,p180erbB4
Molecular Weight The recombinant human ERBB4/Fc is a disulfide-linked homodimer. The reduced monomer comprises 865 amino acids and has a predicted molecular mass of 96.6 kDa. The apparent molecular mass of the protein is approximately 117 kDa in SDS-PAGE under reducing conditions.
predicted N Gln 26
SDS-PAGE
Purity > 85 % as determined by SDS-PAGE
Protein Construction A DNA sequence encoding the human ERBB4 (NP_005226.1) (Met1-Arg649) was expressed, fused with the Fc region of human IgG1 at the C-terminus.Human and Rhesus ERBB4 sequences are identical.
Bio-activity 1. Measured by its ability to bind biotinylated human Fc-NRG1 (isoform Beta1) (P11609-H01H) in a functional ELISA.
2. Measured by its ability to bind biotinylated human NRG1 (isoform Beta1) (P11609-H01H2) in a functional ELISA.
3. Measured by its ability to bind biotinylated human NRG1 (aa 2-246)-Fc (P11609-H04H) in a functional ELISA.
Research Area Cancer |Invasion microenvironment |Angiogenesis |Growth Factor & Receptor |Receptor Tyrosine Kinase (RTK)
Formulation Lyophilized from sterile PBS, pH7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
Background ERBB4 is a single-pass type I membrane protein with multiple cysteine rich domains, a transmembrane domain, a tyrosine kinase domain, a phosphotidylinositol-3 kinase binding site and a PDZ domain binding motif. ERBB4 is expressed at highest levels in brain, heart, kidney, in addition to skeletal muscle, parathyroid, cerebellum, pituitary, spleen, testis and breast. And lower levels in thymus, lung, salivary gland, and pancreas. It specifically binds to and is activated by neuregulins, NRG-2, NRG-3, heparin-binding EGF-like growth factor, betacellulin and NTAK. ERBB4 also can be activated by other factors and induces a variety of cellular responses including mitogenesis and differentiation. ERBB4 regulates development of the heart, the central nervous system and the mammary gland, gene transcription, cell proliferation, differentiation, migration and apoptosis. It is required for normal cardiac muscle differentiation during embryonic development, and for postnatal cardiomyocyte proliferation. ERBB4 also play a role on the normal development of the embryonic central nervous system, especially for normal neural crest cell migration and normal axon guidance. It is required for mammary gland differentiation, induction of milk proteins and lactation.
Reference
  • Huang, Y Z, et al. (2000) Regulation of neuregulin signaling by PSD-95 interacting with ErbB4 at CNS synapses. Neuron. 26(2):443-55.
  • Garcia, R A, et al. (2000) The neuregulin receptor ErbB-4 interacts with PDZ-containing proteins at neuronal synapses. Proc Natl Acad Sci. 97(7):3596-601.
  • Silberberg G, et al. (2006) The involvement of ErbB4 with schizophrenia: association and expression studies. Am J Med Genet. 141(B2):142-8.
  • Sardi SP, et al. (2006) Presenilin-dependent ErbB4 nuclear signaling regulates the timing of astrogenesis in the developing brain. Cell. 127(1):185-97.