Recombinant Human Pro-Neuregulin-2, Membrane-Bound Isoform (NRG2) Protein (His-SUMO)

Name: Recombinant Human Pro-Neuregulin-2, Membrane-Bound Isoform (NRG2) Protein (His-SUMO)
Brand: Beta LifeScience
SKU: BLC-09167P
Availability: InStock

Greater than 90% as determined by SDS-PAGE.

Collections: All products, High-quality recombinant proteins, Other recombinant proteins

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Product Overview

Description	Recombinant Human Pro-Neuregulin-2, Membrane-Bound Isoform (NRG2) Protein (His-SUMO) is produced by our E.coli expression system. This is a extracellular protein.
Purity	Greater than 90% as determined by SDS-PAGE.
Uniprotkb	O14511
Target Symbol	NRG2
Synonyms	Divergent of neuregulin 1; Divergent of neuregulin-1; Don 1; DON-1; Neural- and thymus-derived activator for ERBB kinases; Neuregulin 2; Neuregulin-2; NRG-2; Nrg2; NRG2_HUMAN; NTAK; Pro NRG2; Pro-NRG2
Species	Homo sapiens (Human)
Expression System	E.coli
Tag	N-6His-SUMO
Target Protein Sequence	CYSPSLKSVQDQAYKAPVVVEGKVQGLVPAGGSSSNSTREPPASGRVALVKVLDKWPLRSGGLQREQVISVGSCVPLERNQRYIFFLEPTEQPLVFKTAFAPLDTNGKNLKKEVGKILCTDCATRPKLKKMKSQTGQVGEKQSLKCEAAAGNPQPSYRWFKDGKELNRSRDIRIKYGNGRKNSRLQFNKVKVEDAGEYVCEAENILGKDTVRGRLYVNSVSTTLSSWSGHARKCNETAKSYCVNGGVCYYIEGINQLSCKCPNGFFGQRCLEKLPLRLYMPDPKQKAEELYQKR
Expression Range	112-405aa
Protein Length	Extracellular Domain
Mol. Weight	48.8kDa
Research Area	Neuroscience
Form	Liquid or Lyophilized powder
Buffer	Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution	Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage	1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes	Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function	Direct 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. May also promote the heterodimerization with the EGF receptor.
Subcellular Location	[Pro-neuregulin-2, membrane-bound isoform]: Cell membrane; Single-pass type I membrane protein.; [Neuregulin-2]: Secreted.
Protein Families	Neuregulin family
Database References	HGNC: 7998 OMIM: 603818 KEGG: hsa:9542 STRING: 9606.ENSP00000354910 UniGene: PMID: 27345716 examination of the effect of isoforms on angiogenesis PMID: 14722120 Nrg-2-induced Acetylcholine Receptor transcription requires an N-box motif and is regulated by alternative splicing. PMID: 15961242 Linkage interval for GLC1M was refined to a smaller region. The NRG2 gene was excluded as the causative gene for juvenile-onset primary open angle glaucoma. PMID: 17563728 Gln43 of NRG2beta is both necessary and sufficient for NRG2 stimulation of ErbB4 coupling to IL3 independence. PMID: 17945187 NRG2 was positive in almost all breast cancers studied. High expression is related to the biological aggressiveness of breast cancer. PMID: 17962208

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.