Clone: VU-4H5
Background: Muc1 is a heavily O-glycosylated transmembrane protein expressed on most secretory epithelium, including mammary gland and some hematopoietic cells. It is expressed abundantly in lactating mammary glands and overexpressed in >90% breast carcinomas and metastases. In normal mammary gland it is expressed in apical surface of glandular epithelium. In breast cancer Muc1 is overexpressed; is underglycosylated and the apical localization is lost. Muc1 is transcribed as a larger precursor which is cleaved to form a larger mucin like subunit (265-400kDa) and a smaller subunit (14-28kDa) noncovalently associated with each other. Transgenic Muc1 has been shown to associate with all four erbB receptors and localize with erbB1 (EGFR) in lactating glands1. Muc1 can act as a ligand for ICAM-1 on HUVEC cells; it can bind -catenin, GSK3 and it associates with Grb2-SOS upon phosphorylation.
Positive Control: MCF-7 and T47D cells
Purification Method: Protein A/G Chromatography
Concentration: See vial for concentration
Source: Hybridoma produced by the fusion of splenocytes from BALB/c mice immunized with a Muc1 60mer tandem repeat NH2-(VTSAPDTRPAPGSTAPPAHG)3-COOH and mouse myeloma SP2 cells.
References: 1. Mommers E C, et al. 'Abberant expression of MUC1 mucin in ductal hyperplasia and ductal carcinoma In situ of the breast.' Int J Cancer 1999: 84:466-469.2. Schol, D.J. et al., Epitope fingerprinting using overlapping 20-mer peptides of the MUC 1 tandem repeat sequence. Tumor Biol. Suppl. 1998: 19, 35-45.3. Ryuko K et al. 'Characterization of a new MUC1 monoclonal antibody (VU-2-G7) directed to the glycosylated PDTR sequence of MUC1.' Tumor Biology 2000: 21, 197-210.4. ten Berge, R.L., et al. 'MUC1 (EMA) is preferentially expressed by ALK positive anaplastic large cell lymphoma, in the normally glycosylated or only partly hypoglycosylated form.' J. Clin. Pathol. 2001, 54, 933-939.5. Treon, S.P., et al. 'Muc-1 Core Protein Is Expressed on Multiple Myeloma Cells and Is Induced by Dexamethasone.' Blood 1999, 93, 1287-1298.
UniProt: P15941
Caution: This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals.
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