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NeoBiotechnologies
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Product cellular localization: Cell junction, Cell membrane, Tight junction.
Positive control: Colon: A strong membranous occludin staining of epithelial cells should be seen with a particularly strong staining at the apical/luminal membranes.
Tissue specificity: Localized at tight junctions of both epithelial and endothelial cells. Highly expressed in kidney. Not detected in testis.
Occludin is a 65 kDa protein that can exist in a variety of phosphorylated forms, ranging up to approximately 82 kDa. Occludin is thought to be involved in regulating both the localization and the function of occludin. Polyunsaturated fatty acids are known to up-regulate occludin expression, increasing the transendothelial cell resistance and reducing the cellular permeability to large molecules. The level of occludin varies greatly depending on tissue; in brain tissue, occludin is highly and continuously expressed at cell-cell contact sites, whereas non-neural tissues show lower expression and discontinuous distribution. Overall structural features of the occludin protein are highly conserved in all the species examined. Under-expression of tight junction proteins, including occludin, is a key molecular abnormality responsible for the increased permeability of tumor endothelial tight junctions, which contributes to brain tumor edemas.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: Occludin; phosphatase 1, regulatory subunit 115; tight junction protein occludin
基因别名: BLCPMG; OCLN; PPP1R115
UniProt ID: (Human) Q16625
Entrez Gene ID: (Human) 100506658