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- Table of Contents
Facts about Tight junction protein ZO-3.
Binds and recruits PATJ to tight junctions in which it connects and stabilizes apical and lateral components of tight junctions (PubMed:16129888). Promotes cell-cycle development through the sequestration of cyclin D1 (CCND1) at tight junctions through mitosis which prevents CCND1 degradation through M-phase and enables S-phase transition (PubMed:21411630).
| Human | |
|---|---|
| Gene Name: | TJP3 |
| Uniprot: | O95049 |
| Entrez: | 27134 |

| Belongs to: |
|---|
| MAGUK family |

MGC119546; tight junction protein 3 (zona occludens 3); Tight junction protein 3; ZO-3; ZO3tight junction protein ZO-3; zona occludens 3; Zona occludens protein 3; Zonula occludens protein 3
Mass (kDA):
101.397 kDA

| Human | |
|---|---|
| Location: | 19p13.3 |
| Sequence: | 19; NC_000019.10 (3708384..3750813) |
Cell membrane; Peripheral membrane protein; Cytoplasmic side. Cell junction, tight junction. Nucleus. Exhibits predominant nuclear expression in proliferating cells but is exclusively junctionally expressed after confluence is reached (PubMed:23608536). Shows an epithelial-specific tight junction localization in a TJP1/TJP2-dependent fashion (By similarity).




PMID: 16129888 by Michel D., et al. PATJ connects and stabilizes apical and lateral components of tight junctions in human intestinal cells.
PMID: 18823282 by Aho S., et al. Characterization of the ubinuclein protein as a new member of the nuclear and adhesion complex components (NACos).