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  3. EGF Superfamily ErbB2/HER2 Stem Cell CD Proteins Epithelial cell CD Proteins Endothelial cell CD Proteins Receptor Tyrosine Kinases Protein Tyrosine Kinases
  4. ErbB2/CD340 EGFR/ErbB family
  5. HER2/CD340 Protein, Human (Biotinylated, HEK293, Fc-Avi)

HER2/CD340 Protein, Human (Biotinylated, HEK293, Fc-Avi)

Cat. No.: HY-P72374
COA Handling Instructions

For research use only. We do not sell to patients.

Protein Expression Service

Size Price Stock Quantity
20 μg $305 In-stock
100 μg $850 In-stock
250 μg   Get quote  

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Top Publications Citing Use of Products
  • Biological Activity

  • Technical Parameters

  • Properties

  • Documentation

Biological Activity

Immobilized Anti-Human HER2 mAb at 2 μg/mL (100 μl/well) can bind Human HER2-Fc-Avi. The ED50 of Human HER2-Fc-Avi is <3.07 ng/mL.








P04626 (T23-T652)

Gene ID
Proto-oncogene Neu; Tyrosine kinase-type cell surface receptor ERBB2; MLN19; NGL; TKR1
AA Sequence


Molecular Weight

120-140 kDa


Greater than 95% as determined by reducing SDS-PAGE.


Lyophilized powder.


Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.

Endotoxin Level

<1 EU/μg, determined by LAL method.


It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer. It is recommended to freeze aliquots at -20°C or -80°C for extended storage.


Room temperature in continental US; may vary elsewhere.

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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HER2/CD340 Protein, Human (Biotinylated, HEK293, Fc-Avi)
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