Anti-MUC1 antibody [MUC1/955] (ab233933)
Key features and details
- Mouse monoclonal [MUC1/955] to MUC1
- Suitable for: IHC-P
- Reacts with: Human
- Isotype: IgG1
Overview
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Product name
Anti-MUC1 antibody [MUC1/955]
See all MUC1 primary antibodies -
Description
Mouse monoclonal [MUC1/955] to MUC1 -
Host species
Mouse -
Tested applications
Suitable for: IHC-Pmore details -
Species reactivity
Reacts with: Human
Predicted to work with: Mouse -
Immunogen
Other Immunogen Type corresponding to Human MUC1. Human milk-fat globule membranes (HMFGM).
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Positive control
- IHC-P: Human lung carcinoma, breast carcinoma and endometrial carcinoma tissues.
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General notes
The Life Science industry has been in the grips of a reproducibility crisis for a number of years. Abcam is leading the way in addressing this with our range of recombinant monoclonal antibodies and knockout edited cell lines for gold-standard validation. Please check that this product meets your needs before purchasing.
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Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.2
Preservative: 0.05% Sodium azide
Constituents: PBS, 0.05% BSA -
Concentration information loading...
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Purity
Protein A/G purified -
Purification notes
ab233933 is purified from Bioreactor Concentrate by Protein A/G. -
Clonality
Monoclonal -
Clone number
MUC1/955 -
Isotype
IgG1 -
Light chain type
kappa -
Research areas
Associated products
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Alternative Versions
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Compatible Secondaries
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Isotype control
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Recombinant Protein
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab233933 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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IHC-P |
Use a concentration of 0.25 - 0.5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
Primary incubation for 30 minutes at RT. |
Notes |
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IHC-P
Use a concentration of 0.25 - 0.5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. Primary incubation for 30 minutes at RT. |
Target
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Function
The alpha subunit has cell adhesive properties. Can act both as an adhesion and an anti-adhesion 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. Modulates signaling in ERK, SRC and NF-kappa-B pathways. In activated T-cells, influences directly or indirectly the Ras/MAPK pathway. Promotes tumor progression. 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. -
Tissue specificity
Expressed on the apical surface of epithelial cells, especially of airway passages, breast and uterus. Also expressed in activated and unactivated T-cells. Overexpressed in epithelial tumors, such as breast or ovarian cancer and also in non-epithelial tumor cells. Isoform Y is expressed in tumor cells only. -
Involvement in disease
MUC1/CA 15-3 is used as a serological clinical marker of breast cancer to monitor response to breast cancer treatment and disease recurrence (PubMed:20816948). Decreased levels over time may be indicative of a positive response to treatment. Conversely, increased levels may indicate disease progression. At an early stage disease, only 21% of patients exhibit high MUC1/CA 15-3 levels, that is why CA 15-3 is not a useful screening test. Most antibodies target the highly immunodominant core peptide domain of 20 amino acid (APDTRPAPGSTAPPAHGVTS) tandem repeats. Some antibodies recognize glycosylated epitopes.
Medullary cystic kidney disease 1 -
Sequence similarities
Contains 1 SEA domain. -
Developmental stage
During fetal development, expressed at low levels in the colonic epithelium from 13 weeks of gestation. -
Post-translational
modificationsHighly glycosylated (N- and O-linked carbohydrates and sialic acid). O-glycosylated to a varying degree on serine and threonine residues within each tandem repeat, ranging from mono- to penta-glycosylation. The average density ranges from about 50% in human milk to over 90% in T47D breast cancer cells. Further sialylation occurs during recycling. Membrane-shed glycoproteins from kidney and breast cancer cells have preferentially sialyated core 1 structures, while secreted forms from the same tissues display mainly core 2 structures. The O-glycosylated content is overlapping in both these tissues with terminal fucose and galactose, 2- and 3-linked galactose, 3- and 3,6-linked GalNAc-ol and 4-linked GlcNAc predominating. Differentially O-glycosylated in breast carcinomas with 3,4-linked GlcNAc. N-glycosylation consists of high-mannose, acidic complex-type and hybrid glycans in the secreted form MUC1/SEC, and neutral complex-type in the transmembrane form, MUC1/TM.
Proteolytic cleavage in the SEA domain occurs in the endoplasmic reticulum by an autoproteolytic mechanism and requires the full-length SEA domain as well as requiring a Ser, Thr or Cys residue at the P + 1 site. Cleavage at this site also occurs on isoform MUC1/X but not on isoform MUC1/Y. Ectodomain shedding is mediated by ADAM17.
Dual palmitoylation on cysteine residues in the CQC motif is required for recycling from endosomes back to the plasma membrane.
Phosphorylated on tyrosines and serine residues in the C-terminal. Phosphorylation on tyrosines in the C-terminal increases the nuclear location of MUC1 and beta-catenin. Phosphorylation by PKC delta induces binding of MUC1 to beta-catenin/CTNNB1 and thus decreases the formation of the beta-catenin/E-cadherin complex. Src-mediated phosphorylation inhibits interaction with GSK3B. Src- and EGFR-mediated phosphorylation on Tyr-1229 increases binding to beta-catenin/CTNNB1. GSK3B-mediated phosphorylation on Ser-1227 decreases this interaction but restores the formation of the beta-cadherin/E-cadherin complex. On T-cell receptor activation, phosphorylated by LCK. PDGFR-mediated phosphorylation increases nuclear colocalization of MUC1CT and CTNNB1.
The N-terminal sequence has been shown to begin at position 24 or 28. -
Cellular localization
Secreted; Cell membrane. Cytoplasm. Nucleus. On EGF and PDGFRB stimulation, transported to the nucleus through interaction with CTNNB1, a process which is stimulated by phosphorylation. On HRG stimulation, colocalizes with JUP/gamma-catenin at the nucleus and Apical cell membrane. Exclusively located in the apical domain of the plasma membrane of highly polarized epithelial cells. After endocytosis, internalized and recycled to the cell membrane. Located to microvilli and to the tips of long filopodial protusions. - Information by UniProt
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Database links
- Entrez Gene: 4582 Human
- Entrez Gene: 17829 Mouse
- Omim: 158340 Human
- SwissProt: P15941 Human
- SwissProt: Q02496 Mouse
- Unigene: 89603 Human
- Unigene: 16193 Mouse
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Alternative names
- ADMCKD antibody
- ADMCKD1 antibody
- Breast carcinoma associated antigen DF3 antibody
see all
Images
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Formalin-fixed, paraffin-embedded human lung carcinoma tissue stained for MUC1 using ab233933 at 0.5 μg/ml in immunohistochemical analysis.
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Formalin-fixed, paraffin-embedded human breast carcinoma tissue stained for MUC1 using ab233933 at 0.5 μg/ml in immunohistochemical analysis.
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Formalin-fixed, paraffin-embedded human endometrial carcinoma tissue stained for MUC1 using ab233933 at 0.5 μg/ml in immunohistochemical analysis.
Protocols
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
Datasheets and documents
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Datasheet download
References (0)
ab233933 has not yet been referenced specifically in any publications.