Human Gene TJP3 (ENST00000587686.1) from GENCODE V44
  Description: Interacts with occludin, claudins and ZO-1. Interacts with INADL (By similarity). Interacts with UBN1. Interacts with FASLG. (from UniProt O95049)
RefSeq Summary (NM_001267561): The protein encoded by this gene is a member of the membrane-associated guanylate kinase-like (MAGUK) protein family which is characterized by members having multiple PDZ domains, a single SH3 domain, and a single guanylate kinase-like (GUK)-domain. In addition, members of the zonula occludens protein subfamily have an acidic domain, a basic arginine-rich region, and a proline-rich domain. The protein encoded by this gene plays a role in the linkage between the actin cytoskeleton and tight-junctions and also sequesters cyclin D1 at tight junctions during mitosis. Alternative splicing results in multiple transcript variants encoding distinct isoforms. This gene has a partial pseudogene on chromosome 1. [provided by RefSeq, May 2012].
Gencode Transcript: ENST00000587686.1
Gencode Gene: ENSG00000105289.15
Transcript (Including UTRs)
   Position: hg38 chr19:3,728,376-3,750,813 Size: 22,438 Total Exon Count: 20 Strand: +
Coding Region
   Position: hg38 chr19:3,728,376-3,750,684 Size: 22,309 Coding Exon Count: 20 

Page IndexSequence and LinksUniProtKB CommentsPrimersCTDRNA-Seq Expression
Microarray ExpressionRNA StructureProtein StructureOther SpeciesGO AnnotationsmRNA Descriptions
PathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr19:3,728,376-3,750,813)mRNA (may differ from genome)Protein (938 aa)
Gene SorterGenome BrowserOther Species FASTAGene interactionsTable SchemaAlphaFold
BioGPSEnsemblExonPrimerGencodeGeneCardsHGNC
HPRDLynxMalacardsMGImyGene2neXtProt
PubMedUniProtKBWikipedia

-  Comments and Description Text from UniProtKB
  ID: ZO3_HUMAN
DESCRIPTION: RecName: Full=Tight junction protein ZO-3; AltName: Full=Tight junction protein 3; AltName: Full=Zona occludens protein 3; AltName: Full=Zonula occludens protein 3;
SUBUNIT: Interacts with occludin, claudins and ZO-1. Interacts with INADL (By similarity). Interacts with UBN1. Interacts with FASLG.
SUBCELLULAR LOCATION: Cell membrane; Peripheral membrane protein; Cytoplasmic side (By similarity). Cell junction, tight junction (By similarity).
SIMILARITY: Belongs to the MAGUK family.
SIMILARITY: Contains 1 guanylate kinase-like domain.
SIMILARITY: Contains 3 PDZ (DHR) domains.
SIMILARITY: Contains 1 SH3 domain.

-  Primer design for this transcript
 

Primer3Plus can design qPCR Primers that straddle exon-exon-junctions, which amplify only cDNA, not genomic DNA.
Click here to load the transcript sequence and exon structure into Primer3Plus

Exonprimer can design one pair of Sanger sequencing primers around every exon, located in non-genic sequence.
Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene           more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 34.84 RPKM in Colon - Transverse
Total median expression: 175.83 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
  Press "+" in the title bar above to open this section.

-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
3' UTR -21.90129-0.170 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR008144 - Guanylate_kin
IPR008145 - Guanylate_kin/L-typ_Ca_channel
IPR001478 - PDZ
IPR011511 - SH3_2
IPR001452 - SH3_domain
IPR005417 - ZonOcculdens
IPR005420 - ZonOcculS3

Pfam Domains:
PF00625 - Guanylate kinase
PF00595 - PDZ domain (Also known as DHR or GLGF)
PF07653 - Variant SH3 domain

Protein Data Bank (PDB) 3-D Structure
MuPIT help
3KFV - X-ray MuPIT


ModBase Predicted Comparative 3D Structure on O95049
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The pictures above may be empty if there is no ModBase structure for the protein. The ModBase structure frequently covers just a fragment of the protein. You may be asked to log onto ModBase the first time you click on the pictures. It is simplest after logging in to just click on the picture again to get to the specific info on that model.

-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserNo orthologNo orthologNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGD    
Protein SequenceProtein Sequence    
AlignmentAlignment    

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0005515 protein binding

Cellular Component:
GO:0005634 nucleus
GO:0005886 plasma membrane
GO:0005923 bicellular tight junction
GO:0016020 membrane
GO:0030054 cell junction


-  Descriptions from all associated GenBank mRNAs
  AK091118 - Homo sapiens cDNA FLJ33799 fis, clone CTONG2000201, highly similar to Tight junction protein ZO-3.
AK304462 - Homo sapiens cDNA FLJ58409 complete cds, highly similar to Tight junction protein ZO-3.
AK128237 - Homo sapiens cDNA FLJ46371 fis, clone TESTI4051865, highly similar to Tight junction protein ZO-3.
BC108907 - Homo sapiens tight junction protein 3 (zona occludens 3), mRNA (cDNA clone IMAGE:40008235), partial cds.
BC108906 - Homo sapiens tight junction protein 3 (zona occludens 3), mRNA (cDNA clone MGC:119546 IMAGE:40008232), complete cds.
AK027292 - Homo sapiens cDNA FLJ14386 fis, clone HEMBA1002417, moderately similar to TIGHT JUNCTION PROTEIN ZO-1.
LF208826 - JP 2014500723-A/16329: Polycomb-Associated Non-Coding RNAs.
MA444403 - JP 2018138019-A/16329: Polycomb-Associated Non-Coding RNAs.

-  Biochemical and Signaling Pathways
  KEGG - Kyoto Encyclopedia of Genes and Genomes
hsa04530 - Tight junction

-  Other Names for This Gene
  Alternate Gene Symbols: A6NFP3, AK091118, O95049, Q32N01, uc010xhw.1, uc010xhw.2, uc010xhw.3, uc010xhw.4, ZO3, ZO3_HUMAN
UCSC ID: ENST00000587686.1
RefSeq Accession: NM_001267561
Protein: O95049 (aka ZO3_HUMAN)
CCDS: CCDS32873.2, CCDS59332.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.