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Sequence of this protein is as follows: DSDEDDGPQR VEEVDQGRGY DGDSSSGSGR SWDERSRRPR PGRRGRAGSH GRRSPGGGSE ANGLALVSGF KRLPRQDVQM KPVKSVLVKR RDSEEFGVKL GSQIFIKHIT DSGLAARHRG LQEGDLILQI NGVSSQNLSL NDTRRLIEKS EGKLSLLVLR DRGQFLVNIP PAVSDSDSSP LEDISDLASE LSQAPPSHIP PPPRHAQRSP EASQTDSPVE SPRLRRESSV DSRTISEPDE QRSELPRESS YDIYRVPSSQ SMEDRGYSPD TRVVRFLKGK SIGLRLAGGN DVGIFVSGVQ AGSPADGQGI QEGDQILQVN DVPFQNLTRE EAVQFLLGLP PGEEMELVTQ
ZO-3 is a member of the membrane associated guanylate kinse (MAGUK) family and are considered tight junction-associated proteins. Tight junctions are complexes of proteins that create intercellular boundaries between the plasma membrane domains of epithelial and endothelial cells. ZO-3 is believed to have both structural and signaling roles, and is characteristically defined by three protein-protein interaction modules: the PDZ domain, the SH3 domain and the guanylate kinase (GuK) domain. ZO-1 forms complexes with either ZO-2 or ZO-3. In addition, these proteins can also associate with claudin, occludin and F-actin at tight junction stands, where they provide a linkage between the actin cytoskeleton and the tight junction. ZO-1 expression is significantly reduced in many breast cancer lines. ZO-2 and ZO-3 are ubiquitously expressed within epithelial tight junctions, and unlike ZO-1, which is also expressed at cell junctions of cardiac myocytes, ZO-2 is not expressed in nonepithelial tissue.
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: Tight junction protein 3; tight junction protein 3 (zona occludens 3); Tight junction protein ZO-3; TJP-3; Zona occludens protein 3; Zonula occludens protein 3
基因别名: TJP3; ZO-3; ZO3
UniProt ID: (Human) O95049
Entrez Gene ID: (Human) 27134