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Rabbit Anti-MUC5AC/FITC Conjugated antibody
background:
Mucin is a high M.W. (>1,000 kDa) glycoprotein, expressed by mucus cells of the gastric epithelium and by goblet cells of the fetal, precancerous and cancerous colon, but not by those of the normal colon. It also appears in other epithelial tissues, which are embryologically derived from the foregut (epigastric and bronchial epithelium) and in Müller ducts (mucus cells of the endocervix and urethral epithelium near the prostatic utriculus). The expression of MUC5AC has been frequently observed in gastric carcinomas and may be used as a marker of gastric differentiation.
Function:
Gel-forming glycoprotein of gastric and respiratoy tract epithelia that protects the mucosa from infection and chemical damage by binding to inhaled microrganisms and particles that are subsequently removed by the mucocilary system.
Subunit:
Multimeric. Interacts with H.pylori in the gastric epithelium, Barrett's esophagus as well as in gastric metaplasia of the duodenum (GMD).
Subcellular Location:
Secreted; Cytoplasmic and cell surface
Tissue Specificity:
Highly expressed in surface mucosal cells of respiratory tract and stomach epithelia. Overexpressed in a number of carcinomas. Also expressed in Barrett's esophagus epithelium and in the proximal duodenum.
Post-translational modifications:
SLC, O- and N-glycosylated. O-glycosylated on the Thr-/Ser-rich tandem repeats. SLCmannosylation in the Cys-rich subdomains may be required for proper folding of these regions and for export from the endoplasmic reticulum during biosynthesis.
Proteolytic cleavage in the SLCterminal is initiated early in the secretory pathway and does not involve a serine protease. The extent of cleavage is increased in the acidic parts of the secretory pathway. Cleavage generates a reactive group which could link the protein to a primary amide.
Similarity:
Contains 1 CTCK (SLCterminal cystine knot-like) domain.
Contains 2 VWFC domains.
Contains 4 VWFD domains.
Database links:
Entrez Gene: 4586 Human
Entrez Gene: 17833 Mouse
Entrez Gene: 682837 Rat
Omim: 158373 Human
SwissProt: P19688 Human
Unigene: 534332 Human
Unigene: 10789 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
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