OCLN (Occludin) is a Protein Coding gene. This gene encodes an integral membrane protein that is required for cytokine-induced regulation of the tight junction paracellular permeability barrier. It belongs to the ELL/occludin family. OCLN is an important component of the tight junction complex, providing apical intercellular connections between adjacent cells in endothelial and epithelial tissue. OCLN, an integral tight junction protein, is one of the key factors for HCV entry into cells. OCLN, a key receptor for HCV, is a candidate target of miR-122; the most abundant hepatic micro RNA. Over-expression of miR-122 can decrease HCV entry into hepatocytes through down-regulation of OCLN. Diseases associated with OCLN include Pseudo-Torch Syndrome 1 and Torch Syndrome.
This gene encodes an integral membrane protein that is required for cytokine-induced regulation of the tight junction paracellular permeability barrier. Mutations in this gene are thought to be a cause of band-like calcification with an simplified gyration and polymicrogyria (BLC-PMG), an autosomal recessive neurologic disorder that is also known as pseudo-TORCH syndrome. Alternative splicing results in multiple transcript variants. A related pseudogene is present 1.5 Mb downstream on the q arm of chromosome 5.
Ornithine decarboxylase (ODC1) is an enzyme which belongs to the Orn/Lys/Arg decarboxylase class-II family. ODC1 is the rate-limiting enzyme of the polyamine biosynthesis pathway which catalyzes ornithine to putrescine. The activity level for the enzyme varies in response to growth-promoting stimuli and exhibits a high turnover rate in comparison to other mammalian proteins.
This gene encodes a preproprotein that is proteolytically processed to generate multiple protein products. These products include nociceptin, nocistatin, and orphanin FQ2 (OFQ2). Nociceptin, also known as orphanin FQ, is a 17-amino acid neuropeptide that binds to the nociceptin receptor to induce increased pain sensitivity, and may additionally regulate body temperature, learning and memory, and hunger. Another product of the encoded preproprotein, nocistatin, may inhibit the effects of nociceptin.
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