GRADE & PURITYCarrier Free?Carrier-free — supplied without added carrier protein/stabilizer. Use when carriers (e.g. BSA) would interfere with conjugation or sensitive assays.Bioactive?Bioactive grade — verified to retain biological activity in functional assays. Use when the molecule must be functionally active, not just pure.ActiBioPure™?ActiBioPure™ — Aladdin's premier line for bioactive and recombinant products. Use when both high purity and preserved biological activity are required.≥95%(SDS-PAGE)See COA
Accession #
Q02297-7
Protein Tag
No tag
Expression system
E. coli
Endotoxin Concentration
<1.0 EU/μg
Bioactivity
Measured in a serum-free cell proliferation assay using MCF‑7 human breast cancer cells. The ED50 for this effect is 0.01 ng/mL.
Carrier Free,Bioactive,ActiBioPure™,≥95%(SDS-PAGE),See COA ActiBioPure™,Bioactive,Carrier Free for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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Storage & shipping
Store at -20°C,Avoid repeated freezing and thawing Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
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Quality documents
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
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Literature proof
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Carrier Free, Bioactive, ActiBioPure™, ≥95%(SDS-PAGE), See COA
Biochemical and Physiological Mechanisms
Neuregulin 1 or NRG1 is one of four proteins in the neuregulin family that act on the EGFR family of receptors. This growth factor was originally identified as a 44-kD glycoprotein that interacts with the NEU / ERBB2 receptor tyrosine kinase to increase i
Bioactivity
Measured in a serum-free cell proliferation assay using MCF‑7 human breast cancer cells. The ED50 for this effect is 0.01 ng/mL.
7.0 kDa, under reducing conditions; 10.6 & 15.5 kDa, under non-reducing conditions.
Molecule Type
Protein
Storage and Shipping
Concentration
See COA
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute at 1.0 mg/mL in sterile distilled water. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Storage
Store at -20°C,Avoid repeated freezing and thawing
Shipped In
Ice chest + Ice pads
Stability And Storage
Store at -20℃ for 12 months. Upon reconstitution, it is recommended to aliquot. Avoid freeze/thaw cycle.
Images
Recombinant Human NRG1-beta 2/HRG1-beta 2 Protein (rp222178) - Protein Bioactivity
Measured in a serum-free cell proliferation assay using MCF‑7 human breast cancer cells. The ED50 for this effect is 0.01 ng/mL.
Recombinant Human NRG1-beta 2/HRG1-beta 2 Protein (rp222178) - SDS-PAGE
3 μg/lane of Recombinant Human NRG1-beta 2/HRG1-beta 2 Protein was resolved with SDS-PAGE under reducing (R) and non-reducing (N) conditions and visualized by Coomassie® Blue staining, showing the bands at 7.0 kDa under reducing conditions and 10.6 & 15.5 kDa under non-reducing conditions.
The NRG1-beta 2/HRG1-beta 2 is a class of EGF-like signaling molecules. Its domain is rich in cysteine residues and disulfide bonds, potentially facilitating disulfide bond formation (Uniprot ID: Q02297-7).
Documentation
📋 Safety Data Sheet (SDS)
Comprehensive hazard, handling, storage, and regulatory compliance document.
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