The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Additional notesProtein concentration is above or equal to 0.05 mg/ml. Best used within three months from the date of receipt.
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Preparation and Storage
Stability and Storage
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 8.00 Constituents: 0.3% Glutathione, 0.79% Tris HCl
Tight junction protein occludin
FunctionMay play a role in the formation and regulation of the tight junction (TJ) paracellular permeability barrier. It is able to induce adhesion when expressed in cells lacking tight junctions.
Tissue specificityLocalized at tight junctions of both epithelial and endothelial cells. Highly expressed in kidney. Not detected in testis.
Involvement in diseaseDefects in OCLN are the cause of band-like calcification with simplified gyration and polymicrogyria (BLCPMG) [MIM:251290]; also known as pseudo-TORCH syndrome. BLCPMG is a neurologic disorder with characteristic clinical and neuroradiologic features that mimic intrauterine TORCH infection in the absence of evidence of infection. Affected individuals have congenital microcephaly, intracranial calcifications, and severe developmental delay.
Sequence similaritiesBelongs to the ELL/occludin family. Contains 1 MARVEL domain.
DomainThe C-terminal is cytoplasmic and is important for interaction with ZO-1. Sufficient for the tight junction localization. Involved in the regulation of the permeability barrier function of the tight junction (By similarity). The first extracellular loop participates in an adhesive interaction.
Post-translational modificationsPhosphorylated upon DNA damage, probably by ATM or ATR. Dephosphorylated by PTPRJ. The tyrosine phosphorylation on Tyr-398 and Tyr-402 reduces its ability to interact with TJP1.