Active Recombinant Human ERBB2, His-tagged

• Cat.No.: ERBB2-922H
• Product Overview: Active Recombinant Human ERBB2 Protein(P04626-1)(Thr23-Thr652) is expressed from HEK293 with His tag at the C-terminus.

Specification

• Species: Human
• Source: HEK293
• Tag: His
• Protein Length: 23-652 aa
• Form: Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4).
• Bio-activity: Immobilized Human Her2, His Tag at 0.5μg/ml (100μl/well) on the plate. Dose response curve for Anti-HER2 Antibody, hFc Tag with the EC50 of 5.6ng/ml determined by ELISA.
• Molecular Mass: The protein has a predicted MW of 70.96 kDa. Due to glycosylation, the protein migrates to 80-110 kDa based on Bis-Tris PAGE result.
• Endotoxin: Less than 1 EU per μg by the LAL method.
• Purity: > 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
• Storage: -20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
• Reconstitution: Dissolve the lyophilized protein in distilled water.
• Publications:
  • The neonatal Fc receptor (FcRn) binds independently to both sites of the IgG homodimer with identical affinity (2015)
  • In vitro Fab display: a cell-free system for IgG discovery (2014)
  • Generating bispecific human IgG1 and IgG2 antibodies from any antibody pair. (2012)
  • Peptidomimetic-based antibody surrogate for HER2 (2021)

Gene Information

• Gene Name: ERBB2 v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian) [ Homo sapiens ]
• Official Symbol: ERBB2
• Synonyms: ERBB2; v-erb-b2 erythroblastic leukemia viral oncogene homolog 2, neuro/glioblastoma derived oncogene homolog (avian); NGL, v erb b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog); receptor tyrosine-protein kinase erbB-2; CD340; HER 2; HER2; NEU; herstatin; p185erbB2; proto-oncogene Neu; c-erb B2/neu protein; proto-oncogene c-ErbB-2; metastatic lymph node gene 19 protein; tyrosine kinase-type cell surface receptor HER2; neuroblastoma/glioblastoma derived oncogene homolog; v-erb-b2 avian erythroblastic leukemia viral oncogene homolog 2 (neuro/glioblastoma derived oncogene homolog); NGL; TKR1; HER-2; MLN 19; HER-2/neu
• Gene ID: 2064
• mRNA Refseq: NM_001005862
• Protein Refseq: NP_001005862
• MIM: 164870
• UniProt ID: P04626

Q&As

Do you have a recommended protocol for immobilizing any avi-tagged recombinant proteins on a streptavidin coated plate?

1.Prepare the streptavidin-coated plate by washing it with PBS (phosphate-buffered saline) or another suitable buffer to remove any impurities. 2.Dilute the Avi-tagged protein in the desired buffer at the desired concentration. It is important to use a buffer that is compatible with the protein and does not interfere with its activity or stability. 3.Add the diluted protein to the streptavidin-coated plate and incubate it for a suitable amount of time at room temperature or 4°C. The exact conditions will depend on the specific protein and the desired level of immobilization. 4.Wash the plate with a suitable buffer to remove any unbound protein. 5.Block the remaining binding sites on the plate with a suitable blocking agent such as BSA (bovine serum albumin) or casein. 6.Wash the plate again to remove any unbound blocking agent. 7.Use the immobilized protein for further experiments such as ELISA, Western blotting, or other assays.