Product: NRG1 Antibody
Catalog: DF6126
Description: Rabbit polyclonal antibody to NRG1
Application: WB IHC IF/ICC
Reactivity: Human, Mouse, Rat
Prediction: Bovine, Horse, Rabbit, Dog
Mol.Wt.: 32kDa; 70kD(Calculated).
Uniprot: Q02297
RRID: AB_2838093

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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200, IF/ICC 1:100-1:500
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Bovine(92%), Horse(92%), Rabbit(100%), Dog(92%)
Clonality:
Polyclonal
Specificity:
NRG1 Antibody detects endogenous levels of total NRG1.
RRID:
AB_2838093
Cite Format: Affinity Biosciences Cat# DF6126, RRID:AB_2838093.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

Acetylcholine receptor-inducing activity; Acetylcholine receptor-inducing activity, CHICK, homolog of; ARIA; Breast cancer cell differentiation factor p45; GGF; GGF2; Glial growth factor; Heregulin; heregulin, alpha (45kD, ERBB2 p185-activator); HGL; HRG; HRG1; HRGA; MST131; NDF; Neu differentiation factor; Neuregulin 1; neuregulin 1 type IV beta 1a; neuregulin 1 type IV beta 3; Neuregulin-1; NRG 1; nrg1; NRG1-IT2; NRG1_HUMAN; OTTHUMP00000225398; OTTHUMP00000225419; OTTHUMP00000225420; OTTHUMP00000225421; OTTHUMP00000225422; OTTHUMP00000225477; OTTHUMP00000225545; OTTHUMP00000230603; OTTHUMP00000230605; pro-neuregulin-1, membrane-bound isoform; Pro-NRG1; ProNRG1; Sensory and motor neuron-derived factor; SMDF;

Immunogens

Immunogen:
Uniprot:
Gene(ID):
Expression:
Q02297 NRG1_HUMAN:

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.

Description:
Heregulin (HRG), also called neuregulin (NRG1), neu differentiation factor (NDF) or glial growth factor-2 (GGF-2), is a soluble growth factor synthesized as a transmembrane precursor molecule. Metalloproteinases and other proteases catalyze the cleavage of its extracellular domain which is then released and functions as a ligand for ErbB3 and ErbB4 receptor tyrosine kinase. The signaling pathways of HRG-ErbB3/ErbB4 are involved in regulation of cell proliferation, differentiation, invasion, and survival of both normal and malignant tissues (1,2). Abnormality of HRG-ErbB signaling leads to development of a variety of human diseases.HRG family has four isoforms including HRG-1, -2, -3 and -4, which are derived from alternative exon splicing. Moreover, they showed various tissue expression and biological activities (3).
Sequence:
MSERKEGRGKGKGKKKERGSGKKPESAAGSQSPALPPRLKEMKSQESAAGSKLVLRCETSSEYSSLRFKWFKNGNELNRKNKPQNIKIQKKPGKSELRINKASLADSGEYMCKVISKLGNDSASANITIVESNEIITGMPASTEGAYVSSESPIRISVSTEGANTSSSTSTSTTGTSHLVKCAEKEKTFCVNGGECFMVKDLSNPSRYLCKCQPGFTGARCTENVPMKVQNQEKAEELYQKRVLTITGICIALLVVGIMCVVAYCKTKKQRKKLHDRLRQSLRSERNNMMNIANGPHHPNPPPENVQLVNQYVSKNVISSEHIVEREAETSFSTSHYTSTAHHSTTVTQTPSHSWSNGHTESILSESHSVIVMSSVENSRHSSPTGGPRGRLNGTGGPRECNSFLRHARETPDSYRDSPHSERYVSAMTTPARMSPVDFHTPSSPKSPPSEMSPPVSSMTVSMPSMAVSPFMEEERPLLLVTPPRLREKKFDHHPQQFSSFHHNPAHDSNSLPASPLRIVEDEEYETTQEYEPAQEPVKKLANSRRAKRTKPNGHIANRLEVDSNTSSQSSNSESETEDERVGEDTPFLGIQNPLAASLEATPAFRLADSRTNPAGRFSTQEEIQARLSSVIANQDPIAV

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Rabbit
100
Horse
92
Bovine
92
Dog
92
Chicken
67
Xenopus
50
Pig
0
Sheep
0
Zebrafish
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q02297 As Substrate

Site PTM Type Enzyme
K10 Acetylation
K12 Acetylation
K15 Acetylation
K16 Acetylation
K43 Acetylation
T169 Phosphorylation
S170 Phosphorylation
T395 Phosphorylation
S403 Phosphorylation
S414 Phosphorylation
Y415 Phosphorylation
S418 Phosphorylation
Y424 Phosphorylation
S435 Phosphorylation
Y525 Phosphorylation
T528 Phosphorylation
Y531 Phosphorylation
K551 Acetylation

Research Backgrounds

Function:

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. Binds to ERBB4. Binds to ERBB3. Acts as a ligand for integrins and binds (via EGF domain) to integrins ITGAV:ITGB3 or ITGA6:ITGB4. Its binding to integrins and subsequent ternary complex formation with integrins and ERRB3 are essential for NRG1-ERBB signaling. Induces the phosphorylation and activation of MAPK3/ERK1, MAPK1/ERK2 and AKT1. Ligand-dependent ERBB4 endocytosis is essential for the NRG1-mediated activation of these kinases in neurons (By similarity).

PTMs:

Proteolytic cleavage close to the plasma membrane on the external face leads to the release of the soluble growth factor form.

N- and O-glycosylated. Extensive glycosylation precedes the proteolytic cleavage (By similarity).

Subcellular Location:

Cell membrane>Single-pass type I membrane protein.
Note: Does not seem to be active.

Secreted.

Nucleus.
Note: May be nuclear.

Secreted.
Note: Has a signal peptide.

Membrane>Single-pass type I membrane protein.
Note: May possess an internal uncleaved signal sequence.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

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.

Subunit Structure:

The cytoplasmic domain interacts with the LIM domain region of LIMK1 (By similarity). Forms a ternary complex with ERBB3 and ITGAV:ITGB3 or ITGA6:ITGB4.

Family&Domains:

The cytoplasmic domain may be involved in the regulation of trafficking and proteolytic processing. Regulation of the proteolytic processing involves initial intracellular domain dimerization (By similarity).

ERBB receptor binding is elicited entirely by the EGF-like domain.

Belongs to the neuregulin family.

Research Fields

· Environmental Information Processing > Signal transduction > ErbB signaling pathway.   (View pathway)

· Human Diseases > Drug resistance: Antineoplastic > EGFR tyrosine kinase inhibitor resistance.

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