HER2/CD340 Protein, Cynomolgus (HEK293, hFc)

HER2/CD340 Protein, Cynomolgus (HEK293, hFc) is the recombinant cynomolgus-derived HER2/CD340 protein, expressed by HEK293, with C-hFc tag.

The ErbB family consists of four separate plasma membrane-binding receptor tyrosine kinases. One of them is erbB-2, and the other members are erbB-1, erbB-3 (neuregulin-binding; Lack of kinase domains) and erbB-4. The receptor tyrosine-protein kinase erbB-2 is a protein normally found on cell membranes and is encoded by the ERBB2 gene. The human protein is also often referred to as HER 2 (Human epidermal growth factor receptor 2) or CD340 (differentiated cluster 340). HER2 has binding activity with Hsp90 protein, protein tyrosine kinase and ubiquitination protein. ErbB2 regulates differentiation and apoptosis of neural stem cells in the cochlear nucleus through PI3K/Akt pathway. HER2 is an oncogenic factor that is overexpressed in bladder cancer and activates the oncogenic signaling pathway, thereby promoting tumor cell survival/proliferation^[1][2][3][4].

Cynomolgus

HEK293

C-hFc

XP_005584091.2 (T23-T652)

102146608

Approximately 120-150 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

Greater than 90% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

<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).

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.