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- Table of Contents
Facts about Mucin-4.
Seems to change cellular behavior through both anti-adhesive effects on cell-cell and cell-extracellular matrix interactions and in its ability to function as an intramembrane ligand for ERBB2. Plays an essential role in cell proliferation and differentiation of epithelial cells by inducing specific phosphorylation of ERBB2.
Human | |
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Gene Name: | MUC4 |
Uniprot: | Q99102 |
Entrez: | 4585 |
Belongs to: |
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No superfamily |
Ascites sialoglycoprotein; ASGP; HSA276359; MUC4; MUC-4; mucin 4, cell surface associated; mucin 4, tracheobronchial; mucin-4; Pancreatic adenocarcinoma mucin; Testis mucin; Tracheobronchial mucin
Mass (kDA):
231.518 kDA
Human | |
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Location: | 3q29 |
Sequence: | 3; NC_000003.12 (195746771..195811929, complement) |
Expressed in the thymus, thyroid, lung, trachea, esophagus, stomach, small intestine, colon, testis, prostate, ovary, uterus, placenta, and mammary and salivary glands. Expressed in carcinomas arising from some of these epithelia, such as lung cancers, squamous cell carcinomas of the upper aerodigestive tract, mammary carcinomas, biliary tract, colon, and cervix cancers. Minimally or not expressed in the normal pancreas or chronic pancreatitis, but is highly expressed in pancreatic tumors and pancreatic tumor cell lines.
Membrane; Single-pass membrane protein. Secreted. Isoforms lacking the Cys-rich region, EGF-like domains and transmembrane region are secreted. Secretion occurs by splicing or proteolytic processing.; [Mucin-4 beta chain]: Cell membrane; Single-pass membrane protein.; [Mucin-4 alpha chain]: Secreted.; [Isoform 3]: Cell membrane; Single-pass membrane protein.; [Isoform 11]: Secreted.; [Isoform 15]: Secreted.; [Isoform 17]: Cell membrane; Single-pass membrane protein.
PMID: 10880978 by Moniaux N., et al. Alternative splicing generates a family of putative secreted and membrane-associated MUC4 mucins.
PMID: 10920259 by Choudhury A., et al. Human MUC4 mucin cDNA and its variants in pancreatic carcinoma.