ErbB4/HER4 Active Protein | ErbB4 active protein

Human CellExp ErbB4 / HER4, human recombinant

Cat. Num. AAA845153

• Gene Names: ERBB4; HER4; ALS19; p180erbB4
• Applications: SDS-Page
• Purity: >=95%
• Synonyms: ErbB4/HER4; Human CellExp ErbB4 / HER4; human recombinant; HER4; ErbB4; MGC138404; p180erbB4; ErbB4 active protein

• Host: HEK293 cells
• Purity/Purification: >=95%
• Form/Format: Lyophilized from 0.22 mum filtered solution in PBS, pH7.4. Generally 5-8% Mannitol or trehalose is added as a protectant before lyophilization.; Appearance: Lyophilized
• Sequence Length: 1292

• Applicable Applications for ErbB4 active protein: SDS-PAGE
• Solubility/Reconstitution Instructions: Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 ug/ml. Do not vortex. This solution can be stored at 2-8 degree C for up to 1 month. For extended storage, it is recommended to store at -20 degree C.
• Endotoxin Level: <1 EU/mug by LAL method
• Biological Activity: Measured by its ability to inhibit the biological activity of Neuregulin-1-beta1 on MCF-7 human breast cancer cells, in the presence of 10 ng/mL of Recombinant Human NRG1-beta1/HRG1-beta1 Extracellular Domain. The ED50 for this effect is typically 0.2-2.5 mug/mL.
• Results: Measured by its ability to inhibit the biological activity of Neuregulin-1-beta1 on MCF-7 human breast cancer cells, in the presence of 10 ng/mL of Recombinant Human NRG1-beta1/HRG1-beta1 Extracellular Domain. The ED50 for this effect is typically 0.2-2.5 mug/mL.
• Handling: Centrifuge the vial prior to opening.
• Preparation and Storage: At -20 degree C; Shelf Life: 12 months

Testing Data

Related Product Information for ErbB4 active protein

Background: Receptor tyrosine-protein kinase erbB-4 (ErbB4), also known as Her4, is a single-pass type I transmembrane glycoprotein that is a member of the ErbB family of tyrosine kinase receptors. ErbB family members serve as receptors for the epidermal growth factor (EGF) family of growth factors. ErbB4 is expressed in normal skeletal muscle, heart, pituitary, brain and several breast carcinomas. ERBB4 contains multiple furin-like cysteine rich domains, a tyrosine kinase domain, a phosphotidylinositol-3 kinase binding site and a PDZ domain binding motif. The protein binds to and is activated by neuregulins-2 and -3, heparin-binding EGF-like growth factor and betacellulin. Ligand binding induces a variety of cellular responses including mitogenesis and differentiation. Multiple proteolytic events allow for the release of a cytoplasmic fragment and an extracellular fragment. ErbB4 appears to play important roles in neuronal development, development of the heart and cancer. ERBB4 has been shown to interact with: DLG4, NRG1, STAT5A, and YAP1. Mutations in this gene have been associated with cancer. Other single-nucleotide polymorphisms and a risk haplotype have been linked to schizophrenia.

Product Categories/Family for ErbB4 active protein

Proteins and Enzymes; Human cell expressed recombinant proteinsCytokines; Growth Factors & Hormones; Human cell expressed recombinant proteinsCytokines; Growth Factors & Hormones; EGFsCytokines; Growth Factors & Hormones; Cytokines & Growth Factors (A-Z)

NCBI and Uniprot Product Information

• NCBI GI #: 110825958
• NCBI GeneID: 2066
• NCBI Accession #: NP_001036064.1
• NCBI GenBank Nucleotide #: NM_001042599.1
• UniProt Accession #: Q15303; Q2M1W1; Q59EW4; B7ZLD7; B7ZLE2; B7ZLE3
• Molecular Weight: This protein is fused with 6×his tag at the C-terminus and has a calculated MW of 70.6 kDa expressed. The predicted N-terminal is Glu26. Protein migrates as 95-110 kDa in reduced SDS-PAGE due to glycosylation.
• NCBI Official Full Name: receptor tyrosine-protein kinase erbB-4 isoform JM-a/CVT-2
• NCBI Official Synonym Full Names: erb-b2 receptor tyrosine kinase 4
• NCBI Official Symbol: ERBB4
• NCBI Official Synonym Symbols: HER4; ALS19; p180erbB4
• NCBI Protein Information: receptor tyrosine-protein kinase erbB-4
• UniProt Protein Name: Receptor tyrosine-protein kinase erbB-4
• Protein Family: Receptor tyrosine-protein kinase
• UniProt Gene Name: ERBB4
• UniProt Synonym Gene Names: HER4; 4ICD; E4ICD
• UniProt Entry Name: ERBB4_HUMAN

NCBI Description

This gene is a member of the Tyr protein kinase family and the epidermal growth factor receptor subfamily. It encodes 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. The protein binds to and is activated by neuregulins and other factors and induces a variety of cellular responses including mitogenesis and differentiation. Multiple proteolytic events allow for the release of a cytoplasmic fragment and an extracellular fragment. Mutations in this gene have been associated with cancer. Alternatively spliced variants which encode different protein isoforms have been described; however, not all variants have been fully characterized. [provided by RefSeq, Jul 2008]

Uniprot Description

HER4: a receptor tyrosine kinase of the EGFR family. Specifically binds and is activated by neuregulins, NRG- 2, NRG-3, heparin-binding EGF-like growth factor, betacellulin and NTAK. Heterodimerizes and signals with other EGF receptors. Interaction with these factors induces cell differentiation. Not activated by EGF, TGF-A, and amphiregulin. Interacts with PDZ domains of DLG2, DLG3, DLG4 and the syntrophin SNTB2. Interacts with WWOX. May act as a tumor suppressor: overexpressed in head and neck cancer , but downregulated in renal cancer, papillary carcinoma, high-grade gliomas and invasive breast cancer. 3 alternatively-spliced isoforms of the human protein have been reported.

Protein type: Protein kinase, tyrosine (receptor); Kinase, protein; EC 2.7.10.1; Protein kinase, TK; Membrane protein, integral; TK group; EGFR family

Chromosomal Location of Human Ortholog: 2q33.3-q34

Cellular Component: nucleoplasm; mitochondrion; mitochondrial matrix; basolateral plasma membrane; plasma membrane; extracellular region; integral to membrane; nucleus; cytosol; receptor complex

Molecular Function: protein binding; protein homodimerization activity; protein-tyrosine kinase activity; receptor signaling protein tyrosine kinase activity; transmembrane receptor protein tyrosine kinase activity; ATP binding; epidermal growth factor receptor binding

Biological Process: lactation; peptidyl-tyrosine phosphorylation; nerve growth factor receptor signaling pathway; heart development; positive regulation of transcription, DNA-dependent; protein amino acid autophosphorylation; embryonic pattern specification; signal transduction; regulation of cell migration; olfactory bulb interneuron differentiation; negative regulation of cell proliferation; positive regulation of cell proliferation; neural crest cell migration; positive regulation of cardiac muscle cell proliferation; epidermal growth factor receptor signaling pathway; nervous system development; cell migration; phosphoinositide-mediated signaling; fibroblast growth factor receptor signaling pathway; cell fate commitment; transcription, DNA-dependent; positive regulation of phosphoinositide 3-kinase activity; cell proliferation; central nervous system morphogenesis; positive regulation of tyrosine phosphorylation of Stat5 protein; innate immune response; positive regulation of protein amino acid phosphorylation; mitochondrial fragmentation during apoptosis; transmembrane receptor protein tyrosine kinase signaling pathway; negative regulation of apoptosis

Disease: Amyotrophic Lateral Sclerosis 19