Pro-neuregulin-2, membrane-bound isoform (NRG2),partial, human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 112-405aa. Protein Length: Extracellular Domain. Tag Info: N-terminal 6xHis-SUMO-tagged. Target Protein Sequence: CYSPSLKSVQ DQAYKAPVVV EGKVQGLVPA GGSSSNSTRE PPASGRVALV KVLDKWPLRS GGLQREQVIS VGSCVPLERN QRYIFFLEPT EQPLVFKTAF APLDTNGKNL KKEVGKILCT DCATRPKLKK MKSQTGQVGE KQSLKCEAAA GNPQPSYRWF KDGKELNRSR DIRIKYGNGR KNSRLQFNKV KVEDAGEYVC EAENILGKDT VRGRLYVNSV STTLSSWSGH ARKCNETAKS YCVNGGVCYY IEGINQLSCK CPNGFFGQRC LEKLPLRLYM PDPKQKAEEL YQKR. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 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. Relevance: 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. Reference: Ligand discrimination in signaling through an ErbB4 receptor homodimer.Sweeney C., Lai C., Riese D.J. II, Diamonti A.J., Cantley L.C., Carraway K.L. IIIJ. Biol. Chem. 275:19803-19807(2000). 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.