Gene Information
Gene NameTJP2
OrganismHomo sapiens (Human)
Gene Length1190
Protein NamesTight junction protein ZO-2 (Tight junction protein 2) (Zona occludens protein 2) (Zonula occludens protein 2)
Target NameNA
Target TypeNA
Gene Age886 ( ENSG00000119139 )
Evolutionary StageOpisthokonta
AlphaFoldDBQ9UDY2
Gene CardTJP2
Uniprot IDQ9UDY2
PfamPF00625; PF00595; PF07653
In ASDno
Allosteric Predictionyes (0.793916895)
Ortholog in AnimalsAlpaca_ TJP2 ( ortholog_one2one )
Dog_ TJP2 ( ortholog_one2one )
GuineaPig_ TJP2 ( ortholog_one2one )
Macaque_ TJP2 ( ortholog_one2one )
Mouse_ Tjp2 ( ortholog_one2one )
Pig_ TJP2 ( ortholog_one2one )
Rat_ Tjp2 ( ortholog_one2one )
Rabbit_ TJP2 ( ortholog_one2one )
OhnologsTJP1, TJP3
ParalogsDLG5, TJP3, TJP1
TissueNA
Tissue SpecificityThis protein is found in epithelial cell junctions. Isoform A1 is abundant in the heart and brain. Detected in brain and skeletal muscle. It is present almost exclusively in normal tissues. Isoform C1 is expressed at high level in the kidney, pancreas, heart and placenta. Not detected in brain and skeletal muscle. Found in normal as well as in most neoplastic tissues. {ECO:0000269|PubMed:11018256}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2OSG  (NMR  3E17  (X-ray  1.75A 
DBSNP rs121918299  rs2309428  rs34774441  rs35797487  rs1049624  rs1049625 
Subcellular location [CC]Cell junction, adherens junction. Cell membrane {ECO:0000250};
Peripheral membrane protein {ECO:0000250};
Cytoplasmic side {ECO:0000250}. Cell junction, tight junction {ECO:0000250|UniProtKB:Q9Z0U1}. Nucleus {ECO:0000250}. Note=Also nuclear under environmental stress conditions and in migratory endothelial cells and subconfluent epithelial cell cultures. {ECO:0000250}.
Mouse PG classificationLPG
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