Human Neuregulin-1/NRG1-Beta1 ELISA Kit PicoKine®

Neuregulin 1 or NRG1 is a protein that in humans is encoded by the NRG1 gene. It is mapped to 8p12. NRG1 is one of four proteins in the neuregulin family that act on the EGFR family of receptors. The protein encoded by this gene is a membrane glycoprotein that mediates cell-cell signaling and plays a critical role in the growth and development of multiple organ systems. Dysregulation of this gene has been linked to diseases such as cancer, schizophrenia, and bipolar disorder (BPD) . It is also essential for the normal development of the nervous system and the heart. Furthermore, it was originally identified as a 44-kD glycoprotein that interacts with the NEU/ERBB2 receptor tyrosine kinase to increase its phosphorylation on tyrosine residues.

Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 158 150 151 135 148 8.38 5.6% Sample 2 621 678 601 711 652 43.92 6.7% Sample 3 1900 1866 2082 1930 1944 82.55 4.2% Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Lots Lot 1 (pg/ml) Lot 2 (pg/ml) Lot 3 (pg/ml) Lot 4 (pg/ml) Mean (pg/ml) Standard Deviation CV (%) Sample 1 158 150 151 135 148 8.38 5.6% Sample 1 158 150 151 135 148 8.38 5.6% Sample 2 621 678 601 711 652 43.92 6.7% Sample 2 621 678 601 711 652 43.92 6.7% Sample 3 1900 1866 2082 1930 1944 82.55 4.2% Sample 3 1900 1866 2082 1930 1944 82.55 4.2%

Pro-neuregulin-1, membrane-bound isoform; Pro-NRG1; 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; GGF, HGL, HRGA, NDF, SMDF

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. .

Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 158 621 1900 159 607 1910 Standard deviation 12.16 30.42 81.7 14.46 40.06 95.5 CV (%) 7.7% 4.9% 4.3% 9.1% 6.6% 5% Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 Mean (pg/ml) 158 621 1900 159 607 1910 Standard deviation 12.16 30.42 81.7 14.46 40.06 95.5 CV (%) 7.7% 4.9% 4.3% 9.1% 6.6% 5% Intra-Assay Precision Inter-Assay Precision Intra-Assay Precision Inter-Assay Precision Sample 1 2 3 1 2 3 Sample 1 2 3 1 2 3 n 16 16 16 24 24 24 n 16 16 16 24 24 24 Mean (pg/ml) 158 621 1900 159 607 1910 Mean (pg/ml) 158 621 1900 159 607 1910 Standard deviation 12.16 30.42 81.7 14.46 40.06 95.5 Standard deviation 12.16 30.42 81.7 14.46 40.06 95.5 CV (%) 7.7% 4.9% 4.3% 9.1% 6.6% 5% CV (%) 7.7% 4.9% 4.3% 9.1% 6.6% 5%

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. .

Description|Quantity Pre-coated 96-well strip microplate|1 Standard|2 vials Biotinylated antibody (100x) |100ul Avidin-Biotin-Peroxidase Complex (100x) |100ul Sample Diluent|30ml Antibody Diluent|12ml Avidin-Biotin-Peroxidase Diluent|12ml Color Developing Reagent (TMB) |10ml Stop Solution|10ml Wash Buffer (25x) |20ml Adhesive plate sealers|4

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.003 0.084 0.144 0.268 0.522 0.945 1.719 2.493 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.003 0.084 0.144 0.268 0.522 0.945 1.719 2.493 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 Concentration (pg/ml) 0 62.5 125 250 500 1000 2000 4000 O.D. 0.003 0.084 0.144 0.268 0.522 0.945 1.719 2.493 O.D. 0.003 0.084 0.144 0.268 0.522 0.945 1.719 2.493

Microplate Reader capable of reading absorbance at 450nm. Incubator. Automated plate washer (optional) . Pipettes and pipette tips capable of precisely dispensing 0.5 μl through 1 ml volumes of aqueous solutions. Multichannel pipettes are recommended for large amount of samples. Deionized or distilled water. 500ml graduated cylinders. Test tubes for dilution.