TJP1

This gene encodes a member of the membrane-associated guanylate kinase (MAGUK) family of proteins, and acts as a tight junction adaptor protein that also regulates adherens junctions. Tight junctions regulate the movement of ions and macromolecules between endothelial and epithelial cells. The multidomain structure of this scaffold protein, including a postsynaptic density 95/disc-large/zona occludens (PDZ) domain, a Src homology (SH3) domain, a guanylate kinase (GuK) domain and unique (U) motifs all help to co-ordinate binding of transmembrane proteins, cytosolic proteins, and F-actin, which are required for tight junction function. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2017]

Description

Tight junction protein 1

Tissue specificity

Low tissue specificity

Subcell location

Cell Junctions

Predicted location

Intracellular

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Protein evidence (Ezkurdia et al 2014)
Protein evidence (Kim et al 2014)
Transporters

Chromosome

15 (29699367 - 29968915)

Ensembl ID

ENSG00000104067  (ver. 103.38)

Orthologs

Mouse Tjp1: ENSMUSG00000030516

UniProt

Q07157

neXtProt

NX_Q07157

Human splice variants
Mouse splice variants

Protein structure