Mucin-1/MUC1 Protein, Human (357a.a, HEK293, Fc)

Mucin-1/MUC1 protein and its α subunit have dual functions of adhesion and anti-adhesion proteins, forming a protective layer on epithelial cells. At the same time, the β subunit and its C-terminal domain participate in cell signaling through phosphorylation and protein-protein interactions. Mucin-1/MUC1 Protein, Human (357a.a, HEK293, Fc) is the recombinant human-derived Mucin-1/MUC1 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of Mucin-1/MUC1 Protein, Human (357a.a, HEK293, Fc) is 357 a.a., with molecular weight of ~70 kDa.

The Mucin-1/MUC1 protein exhibits diverse functional roles: the alpha subunit possesses cell adhesive properties and functions as both an adhesion and an anti-adhesion protein, potentially forming a protective layer on epithelial cells against bacterial and enzyme attacks. Simultaneously, the beta subunit, with its C-terminal domain, engages in cell signaling through phosphorylations and protein-protein interactions. Mucin-1/MUC1 modulates signaling in ERK, SRC, and NF-kappa-B pathways, influencing the Ras/MAPK pathway in activated T-cells. Additionally, it plays a role in promoting tumor progression, regulating TP53-mediated transcription, and determining cell fate in the genotoxic stress response. Notably, in conjunction with KLF4, Mucin-1/MUC1 binds to the PE21 promoter element of TP53, thereby repressing TP53 activity and contributing to the intricate network of cellular functions.

Measured by its binding ability in a functional ELISA. Immobilized Human MUC1 at 1 μg/mL (100 μL/well) can bind Biotinylated Human Siglec-9. The ED₅₀ for this effect is 2.211 μg/mL.

Human

HEK293

C-hFc

P15941 (S24-S380)

4582  [NCBI]

Approximately 70 kDa

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

Lyophilized powder

Lyophilized a 0.22 μm filtered solution of PBS, pH 7.4. Normally trehalose is added as protectant before lyophilization.

<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. 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.