NRG1-beta 1 Protein, Human (65a.a, His)
Based on 1 Customer Validation
HRG1-β1 belongs to a family of structurally-related polypeptide growth factors derived from alternatively spliced genes, induces Fn14 expression in MCF7 cells. NRG1-beta 1 Protein, Human (65a.a, His) is the recombinant human-derived NRG1-beta 1 protein, expressed by E. coli , with N-6*His labeled tag.
- Species: Human
- Source: E. coli
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Storage:Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
HRG1-β1 belongs to a family of structurally-related polypeptide growth factors derived from alternatively spliced genes, induces Fn14 expression in MCF7 cells. NRG1-beta 1 Protein, Human (65a.a, His) is the recombinant human-derived NRG1-beta 1 protein, expressed by E. coli , with N-6*His labeled tag.
HRG1-β1 activates HER2/HER3 signaling and up-regulate Fn14 gene expression in parental MCF7 cells. HRG1-β1-mediated Fn14 up-regulation in MCF7/HER2-18 cells is required for maximal MMP-9 production.
The ED50 as determined in a serum-free cell proliferation assay using MCF7 human breast cancer cells is less than 3 ng/mL.
Technical Parameters
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Species Human
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Source E. coli
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Tag N-6*His
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Accession
Q02297-6 (S177-E241)
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Molecular Construction
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N-term
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6*His
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NRG1-beta 1 (S177-E241)
Accession # Q02297-6 -
C-term
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Protein Length
Partial
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Synonyms
NRG1; NRG1 Class VII Isoform Alpha 2a; Prev. HGL; NRG1 Class VII Isoform Beta 2a; Prev. NRG1-IT2; Neuregulin 1 Isoform HRG-Gamma; NDF; Neuregulin 1 Isoform HRG-Beta3; GGF; Neuregulin 1 Isoform HRG-Beta2; Pro-Neuregulin-1, Membrane-Bound Isoform; Neureguli
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AA Sequence
SHLVKCAEKEKTFCVNGGECFMVKDLSNPSRYLCKCPNEFTGDRCQNYVMASFYKHLGIEFMEAE
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Predicted Molecular Mass
7.4 kDa
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Molecular Weight
Approximately 9 kDa under reduced (R) conditions, 9 kDa under non reducing (N) conditions, based on SDS-PAGE.
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Structure/Form
Monomer
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Purity
≥ 95%, as determined by reducing SDS-PAGE.
Product Properties
Lyophilized powder.
Lyophilized from a 0.22 μm filtered solution of 50 mM Tris-HCl, 300 mM NaCL, pH 8.0.
Note: For SPR assay, please replace the buffer. Primary amine components (e.g., Tris, imidazole) can affect protein-coupled chips.
<1 EU/μg, determined by LAL method.
It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).
Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.
Room temperature in continental US; may vary elsewhere.
Documentation
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Data Sheet (235 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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Handling Instructions (2659 KB)
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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