Human Mucin-1 / MUC-1 Protein – PKSH030899

Recombinant Human Mucin-1 / MUC-1 Protein

Mucin 1, cell surface associated (MUC1) or polymorphic epithelial mucin (PEM) is a membrane-bound protein that is a member of the mucin family. Mucins are O-glycosylated proteins that play an essential role in forming protective mucous barriers on epithelial surfaces. These proteins also play a role in intracellular signaling. This protein is expressed on the apical surface of epithelial cells that line the mucosal surfaces of many different tissues including lung, breast stomach and pancreas. MUC-1/CC1/CD227 Exclusively located in the apical domain of the plasma membrane of highly polarized epithelial cells. After endocytosis, internalized and recycled to the cell membrane. This protein is proteolytically cleaved into alpha and beta subunits that form a heterodimeric complex. The N-terminal alpha subunit functions in cell-adhesion and the C-terminal beta subunit is involved in cell signaling. Overexpression, aberrant intracellular localization, and changes in glycosylation of this protein have been associated with carcinomas. The alpha subunit has cell adhesive properties. MUC-1/CC1/CD227 Can act both as an adhesion and an anti-adhesion protein. This protein May provide a protective layer on epithelial cells against bacterial and enzyme attack. The beta subunit contains a C-terminal domain which is involved in cell signaling, through phosphorylations and protein-protein interactions. MUC-1/CC1/CD227 participated in modulates signaling in ERK, SRC and NF-kappa-B pathways. In activated T-cells, MUC-1/CC1/CD227 influences directly or indirectly the Ras/MAPK pathway. MUC-1/CC1/CD227 Promotes tumor progression and regulates TP53-mediated transcription and determines cell fate in the genotoxic stress response. Binds, together with KLF4, the PE21 promoter element of TP53 and represses TP53 activity.

Synonym(s) : RP11-263K19.2 , CD227 , EMA , H23AG , KL-6 , MAM6 , PEM , PEMT , PUM

Species(s) : Human

Protein Expression Host : Human Cells

Protein Construction : A DNA sequence encoding the human MUC1 isoform 2 (NP_001018016.1) extracellular domain (Met 1-Gly 167) was expressed with six amino acids (LEVLFQ) at the C-terminus.

Predicted N-terminal amino acid : Ser 33

Molecular weight/mass : The recombinant human MUC1 consists of 142 amino and has a predicted molecular mass of 15.4 kDa.

Protein Construction : A DNA sequence encoding the human MUC1 isoform 2 (NP_001018016.1) extracellular domain (Met 1-Gly 167) was expressed with six amino acids (LEVLFQ) at the C-terminus.

Formulation : Lyophilized from sterile PBS, pH 7.4

Purity : > (9.5+86.8) % as determined by SDS-PAGE

Endotoxin level : <1.0 EU per μg protein as determined by the LAL method.

Stability : Samples are stable for up to twelve months from date of receipt at -70°C

Shipping conditions : In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

Reconstitution : Please refer to the printed manual for detailed information.

Manual & Datasheet