ANXA2 Protein, Mouse, Recombinant (His) is expressed in E. coli expression system with N-His tag. The predicted molecular weight is 39.6 kDa and the accession number is P07356.

Mouse

E. coli

PAP-IV,p36,LPC2DP36,LPC2D,Lipocortin II,LIP2PAP-IV,Chromobindin-8,CAL1H,ANXA2,ANX2L4,ANX2,Annexin II,Annexin A2

Ser2-Asp339

> 95% as determined by Tris-Bis PAGE

Reconstitute the lyophilized protein in 20mM MES, 150mM NaCl, 200mM L-arginine, 5mM DTT (pH 5.5). The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.

It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

ANXA2, highly expressed in invasive breast cancer cells, is closely related with poor prognosis, and acts as a molecular switch to EGFR activation. ANXA2 expression is inversely correlated with cell sensitivity to gefitinib. Knockdown of ANXA2 expression in MDA-MB-231 cells increased the gefitinib induced cell death. When ANXA2 was overexpressed in MCF7 cells, the gefitinib induced cell death was decreased. Furthermore, the phosphorylation of ANXA2 at Tyr23 is negatively correlated with the sensitivity of TNBC to gefitinib.