Active Recombinant Human ERBB2 Protein, Fc-tagged, Alexa Fluor 555 conjugated

• Cat.No.: ERBB2-552HAF555
• Product Overview: Alexa Fluor 555 conjugated recombinant human ERBB2 (Accession # NP_004439), fused with , was produced in Mouse myeloma cell line, NS0-derived.

Specification

• Species: Human
• Source: Mammalian Cells
• Tag: Fc
• Form: Lyophilized
• Bio-activity: Measured by its ability to block anti-ErbB2 mediated inhibition of SK-BR-3 human breast cancer cell proliferation. The ED50 for this effect is typically 20-80 ng/mL in the presence of 0.6 μg/mL goat anti-hErbB2.
• Molecular Mass: Recombinant Human ERBB2, Fc Chimera has a calculated MW of 96.8 kDa (monomer). In SDS-PAGE migrates as 125-130 kDa, reducing conditions220-250 kDa, non-reducing conditions.
• N-terminal Sequence Analysis: Thr 23
• Purity: > 90 % by SDS-PAGE and analyzed by silver stain
• Characteristic: Disulfide-linked homodimer
  Labeled with Alexa Fluor 555 via amines
  With an excitation and emission maximum of 555/565 nm, Alexa Fluor 555 can be efficiently excited using a 543 nm He-Ne laser line and detected under standard TRITC/Cy3 filters.
• Storage: Avoid repeated freeze-thaw cycles. No activity loss was observed after storage at: In lyophilized state for 1 year (4 centigrade); After reconstitution under sterile conditions for 3 months (-70 centigrade).
• Storage Buffer: Lyophilized from a 0.2 μm filtered solution in PBS.

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.