Claudin-1 (CLDN1) membrane protein belongs to the claudin family. It comprises four membrane-spanning regions, N- and C-terminal cytoplasmic domains, and two extracellular loops. The CLDN1 gene is mapped to human chromosome 3q28. It is expressed in the kidney, testis, intestine, brain, and liver.
Immunogen
Synthetic peptide directed towards the C terminal region of human CLDN1
Biochem/physiol Actions
Claudin-1 (CLDN1) is a key component of the tight junctions that mediate epithelial barrier functions. CLDN1 is dichotomous as it is downregulated in breast, esophageal and prostate cancer. The gene is overexpressed in oral squamous cell cancer, colon, nasopharyngeal and ovarian tumors. It is implicated in neonatal sclerosing cholangitis (NISCH) syndrome. CLDN1 is involved in dengue (DENV) entry and acts as a co-receptor for hepatitis C virus (HCV) entry.
Sequence
Synthetic peptide located within the following region: GQALFTGWAAASLCLLGGALLCCSCPRKTTSYPTPRPYPKPAPSSGKDYV
Physical form
Purified antibody supplied in 1x PBS buffer with 0.09% (w/v) sodium azide and 2% sucrose.
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Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
International journal of molecular sciences, 21(2) (2020-01-19)
Claudins, a group of membrane proteins involved in the formation of tight junctions, are mainly found in endothelial or epithelial cells. These proteins have attracted much attention in recent years and have been implicated and studied in a multitude of
Dengue disease is becoming a huge public health concern around the world as more than one-third of the world's population living in areas at risk of infection. In an effort to assess host factors interacting with dengue virus, we identified
The claudin 1 tight junction protein, solely responsible for the barrier function of epithelial cells, is frequently down regulated in invasive human breast cancer. The underlying mechanism is largely unknown, and no obvious mutations in the claudin 1 gene (CLDN1)
Most human and animal cholestatic disorders are associated with changes in hepatocyte cytoskeleton and tight junctions (TJs). These changes are usually secondary and nonspecific phenomena, both in intra- and extrahepatic cholestasis. Recently, missense mutations in TJ protein 2 (ZO-2) have
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