protein

Human Heregulin-ß1

MBS695788

0.01 mg

125 USD

Recombinant Protein

Human Heregulin-ß1

[Heregulinbeta-1]

[Neuregulin1 (NRG1-ß1), Neu differentiation factor (rat), HRG, HRG1-ß1, Breast cancer cell differentiation factor p45, ARIA (Acetylcholine Receptor Inducing Activity), glial growth factor]

[Pro-neuregulin-1, membrane-bound isoform; Pro-neuregulin-1, membrane-bound isoform; pro-neuregulin-1, membrane-bound isoform; pro-NRG1; glial growth factor; neu differentiation factor; sensory and motor neuron derived factor; heregulin, alpha (45kD, ERBB2 p185-activator); neuregulin 1; Acetylcholine receptor-inducing activity; ARIA; Breast cancer cell differentiation factor p45; Glial growth factor; Heregulin; HRG; Neu differentiation factor; Sensory and motor neuron-derived factor]

[NRG1; NRG1; GGF; HGL; HRG; NDF; ARIA; GGF2; HRG1; HRGA; SMDF; MST131; MSTP131; NRG1-IT2; GGF; HGL; HRGA; NDF; SMDF; Pro-NRG1; ARIA; HRG]

NRG1_HUMAN

SHLVKCAEKE KTFCVNGGEC FMVKDLSNPS RYLCKCPNEF TGDRCQNYVM ASFYKHLGIE FMEAE

>= 98% by SDS-PAGE and HPLC analyses

Sterile filtered through a 0.2 micron filter. Lyophilized with no additives

Store at -20°C

Source: E.coli. Authenticity: Verified by N-terminal and Mass Spectrometry analyses (when applicable). Endotoxin Level: 50 is = 2 x 10 6 units/mg. Reconstitution: Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C. Country of Origin: USA.

Stem Cell Research; Apoptosis; Cancer; Angiogenesis; Proliferation and Cell Cycle

Neuregulin/Heregulin is a family of structurally related polypeptide growth factors derived from alternatively spliced genes (NRG1, NRG2, NRG3 and NRG4). To date, there are over 14 soluble and transmembrane proteins derived from the NRG1 gene. Proteolytic processing of the extracellular domain of the transmembrane NRG1 isoforms release soluble growth factors. HRG1-beta1 contains an Ig domain and an EGF-like domain that is necessary for direct binding to receptor tyrosine kinases erb3 and erb4. This binding induces erb3 and erb4 heterodimerization with erb2, stimulating intrinsic kinase activity, which leads to tyrosine phosphorylation. Although HRG1-beta1 biological effects is still unclear, it has been found to promote motility and invasiveness of breast cancer cells which may also involve up-regulation of expression and function of the autocrine motility-promoting factor (AMF). Recombinant human Heregulin-beta1 (HRG1-beta1) is a 7.5 kDa polypeptide consisting of only the EGF domain of Heregulin-beta1 (65 amino acid residues).

9297018

Q02297.3

Q02297

Adaptive Immune System Pathway (366160); Cardiac Progenitor Differentiation Pathway (712094); Constitutive PI3K/AKT Signaling In Cancer Pathway (685535); DAP12 Interactions Pathway (685549); DAP12 Signaling Pathway (685550); Disease Pathway (530764); Downregulation Of ERBB2:ERBB3 Signaling Pathway (530740); Downstream Signal Transduction Pathway (106385); Downstream Signaling Events Of B Cell Receptor (BCR) Pathway (576250); Downstream Signaling Of Activated FGFR Pathway (160957)

The protein encoded by this gene is a membrane glycoprotein that that mediates cell-cell signaling and plays a critical role in the growth and development of multiple organ systems. An extraordinary variety of different isoforms are produced from this gene through alternative promoter usage and splicing. These isoforms are expressed in a tissue-specific manner and differ significantly in their structure, and are classified as types I, II, III, IV, V and VI. Dysregulation of this gene has been linked to diseases such as cancer, schizophrenia, and bipolar disorder (BPD). [provided by RefSeq, Jun 2014]

NRG1: Direct ligand for ERBB3 and ERBB4 tyrosine kinase receptors. Concomitantly recruits ERBB1 and ERBB2 coreceptors, resulting in ligand-stimulated tyrosine phosphorylation and activation of the ERBB receptors. The multiple isoforms perform diverse functions such as inducing growth and differentiation of epithelial, glial, neuronal, and skeletal muscle cells; inducing expression of acetylcholine receptor in synaptic vesicles during the formation of the neuromuscular junction; stimulating lobuloalveolar budding and milk production in the mammary gland and inducing differentiation of mammary tumor cells; stimulating Schwann cell proliferation; implication in the development of the myocardium such as trabeculation of the developing heart. Isoform 10 may play a role in motor and sensory neuron development. The cytoplasmic domain interacts with the LIM domain region of LIMK1. Interacts with ERBB3 and ERBB4. Type I isoforms are the predominant forms expressed in the endocardium. Isoform alpha is expressed in breast, ovary, testis, prostate, heart, skeletal muscle, lung, placenta liver, kidney, salivary gland, small intestine and brain, but not in uterus, stomach, pancreas, and spleen. Isoform 3 is the predominant form in mesenchymal cells and in non-neuronal organs, whereas isoform 6 is the major neuronal form. Isoform 8 is expressed in spinal cord and brain. Isoform 9 is the major form in skeletal muscle cells; in the nervous system it is expressed in spinal cord and brain. Also detected in adult heart, placenta, lung, liver, kidney, and pancreas. Isoform 10 is expressed in nervous system: spinal cord motor neurons, dorsal root ganglion neurons, and brain. Predominant isoform expressed in sensory and motor neurons. Not detected in adult heart, placenta, lung, liver, skeletal muscle, kidney, and pancreas. Not expressed in fetal lung, liver and kidney. Type IV isoforms are brain-specific. Belongs to the neuregulin family. 10 isoforms of the human protein are produced by alternative splicing. Protein type: Cell development/differentiation; Membrane protein, integral; Ligand, receptor tyrosine kinase; Cytokine; Motility/polarity/chemotaxis. Chromosomal Location of Human Ortholog: 8p12. Cellular Component: extracellular space; membrane; axon; integral to plasma membrane; apical plasma membrane; cytoplasm; extracellular region; neuromuscular junction; nucleus. Molecular Function: ErbB-2 class receptor binding; protein binding; transmembrane receptor protein tyrosine kinase activator activity; growth factor activity; ErbB-3 class receptor binding; cytokine activity; transcription cofactor activity; protein tyrosine kinase activator activity; receptor tyrosine kinase binding; receptor binding. Biological Process: regulation of protein heterodimerization activity; transmembrane receptor protein tyrosine kinase activation (dimerization); positive regulation of cell adhesion; neural crest cell development; wound healing; nerve growth factor receptor signaling pathway; cellular protein complex disassembly; cell morphogenesis; ventricular cardiac muscle cell differentiation; locomotory behavior; positive regulation of striated muscle cell differentiation; cardiac muscle cell differentiation; synaptogenesis; mammary gland development; cell communication; 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; neurotransmitter receptor metabolic process; regulation of protein homodimerization activity; MAPKKK cascade; neuron fate commitment; positive regulation of cell growth; peripheral nervous system development; positive regulation of protein kinase B signaling cascade; cell proliferation; embryonic development; glial cell fate commitment; innate immune response; negative regulation of secretion; positive regulation of Ras protein signal transduction; negative regulation of protein catabolic process; negative regulation of transcription, DNA-dependent; transmembrane receptor protein tyrosine kinase signaling pathway. Disease: Schizophrenia 6

0.01 mg

125 USD

0.05 mg

195

0.1 mg

275

0.5 mg

730

1 mg

1180