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Limin International Group Co. Ltd ,a fast-growing company founded by returned scholars and their partners, is mainly engaged in R&D, production, and sales of bioactive proteins and clinical diagnostic reagents.


Category:Recombinant Proteins



ErbB2(Her2)(Human epidermal growth factor receptor 2)

Humanepidermal growth factor receptor 2 (HER2), also known as ErbB2, is a type Imembrane glycoprotein, and belongs to the epidermal growth factor (EGF)receptor family. It has no ligand binding domain of its own andtherefore cannot bind growth factors. However, it does bind tightly to otherligand-bound EGF receptor family members to form a heterodimer, stabilizingligand binding and enhancing kinase-mediated activation of downstreamsignalling pathways, such as those involving mitogen-activated protein kinaseand phosphatidylinositol-3 kinase.

It is aprotein giving higher aggressiveness in breast cancers. Approximately 30% ofbreast cancers have an amplification of the HER2 gene or overexpression of itsprotein product. Overexpression of this receptor in breast cancer is associatedwith increased disease recurrence and worse prognosis. HER2 appears to playroles in development, cancer, communication at the neuromuscular junctionandregulation of cell growth and differentiation.

Product details:

The HER2provided by our company is a recombinant protein expressed by mammaliancells, with high purity, good immunogenicity and high biological activity. It was verified tobind therapeutic antibodie”Herceptin” with high affinity.

Cas#: LM-416
From: liquid
Constituents: Recombinant human Her2 was dissolved in 1 xPBS(pH7.4)
Concentration: 1-2mg/ml
Shipment: ice bag
Source: A DNA sequece encoding the human ErbB2(NM_004448.3) extracellular domain fused with a affinity tag was expressed by HEK293 cells.
Molecular weight: Recombinant human ErbB2/Her2 migrates as approximately 95-115 kDa band in SDS-PAGE under reducing conditions.
Purity: >90% (determined by SDS-PAGE)
Storage: 4℃ for frequent usage,-20℃ for long-term storage. Avoid repeated freeze-thaw cycles.
Figure: her2