Category
Neural Stem Cell Growth Factors
Product Name
NRG1 Beta 1 Protein, Human, Recombinant (ECD, Fc Tag)
Synonyms
ARIA Protein, Human; GGF Protein, Human; GGF2 Protein, Human; HGL Protein, Human; HRG Protein, Human; HRG1 Protein, Human; HRGA Protein, Human; MST131 Protein, Human; MSTP131 Protein, Human; NDF Protein, Human; Neuregulin 1 Protein, Human; NRG1-IT2 Protein, Human; SMDF Protein, Human
Purity
> 88 % as determined by SDS-PAGE
Endotoxin
< 1.0 EU per μg of the protein as determined by the LAL method
Activity
1. Measured by its ability to bind with human ErbB4-His in a functional ELISA.
2. Measured by its ability to bind with human ErbB3-His in a functional ELISA.
Protein Construction
A DNA sequence encoding the N-terminal fragment (Ser 2-Lys 246) of human NRG1 isoform beta1 (Q02297-6) was expressed, fused with the Fc region of mouse IgG1 at the N-terminus.
Expressed Host
HEK293 Cells
Molecule Mass
The recombinant human NRG1/mFc is a disulfide-linked homodimer. The reduced monomer comprises 481 amino acids and has a predicted molecular mass of 53.4 kDa. The apparent molecular mass of the monomer is approximately 67 kDa in SDS-PAGE under reducing conditions due to glycosylation.
Formulation
Lyophilized from sterile PBS, pH 7.4Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Shipping
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Stability & Storage
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.