Recombinant Human Pro-Neuregulin-1/NRG1-β1 Protein (aa 2-246) (PKSH032939)
For research use only.
| Synonyms | EGF, GGF, HGL, HRG1-beta 1, HRGA, NDF, NRG1, NRG1-beta 1, Neuregulin-1 beta 1, Pro-neuregulin-1, SMDF |
| Species | Human |
| Expression Host | E.coli |
| Sequence | Ser2-Lys246 |
| Accession | AAA58639.1 |
| Calculated Molecular Weight | 26.9 kDa |
| Observed Molecular Weight | 34 kDa |
| Tag | None |
| Bio-activity | Not validated for activity |
| Purity | > 85 % as determined by reducing SDS-PAGE. |
| Endotoxin | < 0.01 EU per μg of the protein as determined by the LAL method. |
| Storage | Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months. |
| Shipping | This product is provided as lyophilized powder which is shipped with ice packs. |
| Formulation |
Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
| Reconstitution | Please refer to the printed manual for detailed information. |
| Background | Pro-neuregulin-1;Neuregulin-1 beta 1（NRG1） is a single-pass type I membrane protein and belongs to the neuregulin family .It contains 1 EGF-like domain and 1 Ig-like C2-type (immunoglobulin-like) domain. Direct ligand for ERBB3 and ERBB4 tyrosine kinase receptors. The protein 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. |
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