Tbio TJP1 Tight junction protein ZO-1

Protein Classes

PANTHER Classes

Protein / Cell Junction Protein / Tight Junction / Tight Junction Protein Zo-1

Protein Summary

Description

TJP1, TJP2, and TJP3 are closely related scaffolding proteins that link tight junction (TJ) transmembrane proteins such as claudins, junctional adhesion molecules, and occludin to the actin cytoskeleton (PubMed:7798316, PubMed:9792688). The tight junction acts to limit movement of substances through the paracellular space and as a boundary between the compositionally distinct apical and basolateral plasma membrane domains of epithelial and endothelial cells. Necessary for lumenogenesis, and particularly efficient epithelial polarization and barrier formation (By similarity). Plays a role in the regulation of cell migration by targeting CDC42BPB to the leading edge of migrating cells (PubMed:21240187). Plays an important role in podosome formation and associated function, thus regulating cell adhesion and matrix remodeling (PubMed:20930113). With TJP2 and TJP3, participates to the junctional retention and stability of the transcription factor DBPA, but is not involved in its shuttling to the nucleus (By similarity). 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]

Uniprot Accession IDs

• Q07157
• B4E3K1
• Q2NKP3
• Q4ZGJ6

Gene Name

• TJP1

Ensembl ID

• ENST00000346128
• ENSP00000281537
• ENSG00000104067
• ENST00000545208
• ENSP00000441202
• ENST00000621049
• ENSP00000484535
• ENSG00000277401

Symbol

• ZO1
• ZO-1

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
ligand (protein) perturbation	1
protein domain	0.99
virus perturbation	0.99
hub protein	0.96
chemical	0.94

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1541.86   (req: < 5)

Gene RIFs: 140   (req: <= 3)

Antibodies: 387   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1541.86   (req: >= 5)

Gene RIFs: 140   (req: > 3)

Antibodies: 387   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 7

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0

Protein Data Bank (18)

1 – 5 of 18

PDB Structure Id	Ligand	Method	Resolution (Å)	M.W. (kDa)	Pub Year	Title

PDB Structure Id	M.W.	Resolution	Pub Year

Pathways (34)

Reactome (16)

KEGG (6)

PathwayCommons (2)

WikiPathways (10)

Apoptosis (R-HSA-109581)

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Data Source	Name	Explore in Pharos	Explore in Source
Reactome	Apoptosis	177 targets	R-HSA-109581
Reactome	Apoptotic cleavage of cell adhesion proteins	11 targets	R-HSA-351906
Reactome	Apoptotic cleavage of cellular proteins	38 targets	R-HSA-111465
Reactome	Apoptotic execution phase	52 targets	R-HSA-75153
Reactome	Gap junction trafficking and regulation	30 targets	R-HSA-157858

Name	Explore in Pharos	Explore in Source
Apoptosis	177 targets	R-HSA-109581
Apoptotic cleavage of cell adhesion proteins	11 targets	R-HSA-351906
Apoptotic cleavage of cellular proteins	38 targets	R-HSA-111465
Apoptotic execution phase	52 targets	R-HSA-75153
Gap junction trafficking and regulation	30 targets	R-HSA-157858

Gene Ontology Terms (19)

Functions (2)

Components (12)

Processes (5)

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1 – 2 of 2

GO Term	Evidence	Assigned by
cadherin binding	Inferred from High Throughput Direct Assay (HDA)	BHF-UCL
calmodulin binding	Inferred from Electronic Annotation (IEA)	UniProtKB-KW

Protein-Protein Interactions (332)

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1 – 10 of 332

• See Interactions on String-DB

MAGIX

Tdark

Novelty: 0.09090909

p_int: 0.999999755

p_ni: 2.42e-7

p_wrong: 3e-9

Score: 0.227

Data Source: BioPlex,STRINGDB

SOWAHB

Tdark

Novelty: 2.72727273

p_int: 0.99999884

p_ni: 0.00000116

Data Source: BioPlex

IFI30

Tbio

Family: Enzyme

Novelty: 0.00132842

p_int: 0.999978054

p_ni: 0.000021946

Data Source: BioPlex

CCDC102B

Tdark

Novelty: 0.44776119

p_int: 0.999721211

p_ni: 0.000278788

p_wrong: 1e-9

Data Source: BioPlex

RNF166

Tdark

Novelty: 0.66985646

p_int: 0.996541691

p_ni: 0.003458304

p_wrong: 4e-9

Data Source: BioPlex

KBTBD7

Tdark

Novelty: 1.01449275

p_int: 0.995278397

p_ni: 0.004721603

Score: 0.17

Data Source: BioPlex,STRINGDB

CGN

Tbio

Novelty: 0.01123818

p_int: 0.989483293

p_ni: 0.010516695

p_wrong: 1.2e-8

Score: 0.935

Data Source: BioPlex,STRINGDB

DEFA1

Tbio

Novelty: 0.01616437

p_int: 0.986512647

p_ni: 0.013487319

p_wrong: 3.4e-8

Data Source: BioPlex

CRYBA4

Tbio

Novelty: 0.04895928

p_int: 0.949196867

p_ni: 0.050803131

p_wrong: 1e-9

Score: 0.167

Data Source: BioPlex,STRINGDB

IL17F

Tbio

Novelty: 0.00311315

p_int: 0.881261805

p_ni: 0.118730264

p_wrong: 0.000007932

Data Source: BioPlex

Publication Statistics

PubMed Score  1541.86

PubMed score by year

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PubTator Score  848.66

PubTator score by year

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Amino Acid Sequence

Residue Counts

Protein Sequence

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UniProt Keyword Find Similar Targets

3D-structure
Alternative splicing
Calmodulin-binding
Cell junction
Cell membrane
Cell projection
Complete proteome
Gap junction
Membrane
Phosphoprotein

GWAS Trait Find Similar Targets

central corneal thickness
corneal topography
heel bone mineral density

MGI Phenotype Find Similar Targets

cardiovascular system phenotype
cellular phenotype
embryo phenotype
growth/size/body region phenotype
homeostasis/metabolism phenotype
mortality/aging
nervous system phenotype
renal/urinary system phenotype