CLDN5
gene geneOn this page
Also known as CPETRL1BEC1
Summary
CLDN5 (claudin 5, HGNC:2047) is a protein-coding gene on chromosome 22q11.21, encoding Claudin-5 (O00501). Plays a major role in tight junction-specific obliteration of the intercellular space.
This gene encodes a member of the claudin family. Claudins are integral membrane proteins and components of tight junction strands. Tight junction strands serve as a physical barrier to prevent solutes and water from passing freely through the paracellular space between epithelial or endothelial cell sheets. Mutations in this gene have been found in patients with velocardiofacial syndrome. Alternative splicing results in multiple transcript variants encoding distinct isoforms.
Source: NCBI Gene 7122 — RefSeq curated summary.
At a glance
- Gene–disease (curated): neurodevelopmental disorder (Limited, GenCC)
- Clinical variants (ClinVar): 53 total — 6 pathogenic, 4 likely-pathogenic
- MANE Select transcript:
NM_001363066
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:2047 |
| Approved symbol | CLDN5 |
| Name | claudin 5 |
| Location | 22q11.21 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | CPETRL1, BEC1 |
| Ensembl gene | ENSG00000184113 |
| Ensembl biotype | protein_coding |
| OMIM | 602101 |
| Entrez | 7122 |
Gene structure
Transcript identifiers
Ensembl transcripts: 4 — 4 protein_coding
ENST00000403084, ENST00000406028, ENST00000413119, ENST00000618236
RefSeq mRNA: 5 — MANE Select: NM_001363066
NM_001130861, NM_001363066, NM_001363067, NM_001426402, NM_003277
CCDS: CCDS13763, CCDS93118
Canonical transcript exons
ENST00000618236 — 1 exons
| Exon | Start | End |
|---|---|---|
| ENSE00003714707 | 19523027 | 19524410 |
Expression profiles
Bgee: expression breadth ubiquitous, 268 present calls, max score 99.50.
FANTOM5 (CAGE): breadth broad, TPM avg 12.9081 / max 499.7433, expressed in 470 samples.
FANTOM5 promoters (3 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 193157 | 11.9230 | 467 |
| 193158 | 0.8248 | 235 |
| 193159 | 0.1603 | 100 |
Top tissues by expression
288 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| right lung | UBERON:0002167 | 99.50 | gold quality |
| upper lobe of lung | UBERON:0008948 | 98.87 | gold quality |
| upper lobe of left lung | UBERON:0008952 | 98.85 | gold quality |
| pericardium | UBERON:0002407 | 98.72 | gold quality |
| lower lobe of lung | UBERON:0008949 | 98.60 | gold quality |
| subcutaneous adipose tissue | UBERON:0002190 | 98.23 | gold quality |
| omental fat pad | UBERON:0010414 | 98.06 | gold quality |
| peritoneum | UBERON:0002358 | 98.02 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 97.91 | gold quality |
| adipose tissue | UBERON:0001013 | 97.57 | gold quality |
| C1 segment of cervical spinal cord | UBERON:0006469 | 97.42 | gold quality |
| dorsal motor nucleus of vagus nerve | UBERON:0002870 | 97.30 | gold quality |
| inferior olivary complex | UBERON:0002127 | 97.18 | gold quality |
| spinal cord | UBERON:0002240 | 96.69 | gold quality |
| olfactory bulb | UBERON:0002264 | 96.63 | silver quality |
| tibial nerve | UBERON:0001323 | 96.62 | gold quality |
| connective tissue | UBERON:0002384 | 96.32 | gold quality |
| apex of heart | UBERON:0002098 | 96.28 | gold quality |
| putamen | UBERON:0001874 | 96.26 | gold quality |
| lung | UBERON:0002048 | 96.06 | gold quality |
| amygdala | UBERON:0001876 | 95.92 | gold quality |
| body of uterus | UBERON:0009853 | 95.88 | gold quality |
| substantia nigra | UBERON:0002038 | 95.49 | gold quality |
| choroid plexus epithelium | UBERON:0003911 | 95.49 | gold quality |
| midbrain | UBERON:0001891 | 95.37 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 95.36 | gold quality |
| hypothalamus | UBERON:0001898 | 94.97 | gold quality |
| caudate nucleus | UBERON:0001873 | 94.95 | gold quality |
| ventral tegmental area | UBERON:0002691 | 94.91 | gold quality |
| right frontal lobe | UBERON:0002810 | 94.82 | gold quality |
Single-cell (SCXA)
Detected in 40 experiment(s), a significant marker in 38.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-MTAB-6308 | yes | 8833.70 |
| E-CURD-88 | yes | 6639.29 |
| E-MTAB-6653 | yes | 6289.55 |
| E-MTAB-10662 | yes | 6239.02 |
| E-MTAB-6911 | yes | 5286.13 |
| E-HCAD-25 | yes | 4891.04 |
| E-CURD-126 | yes | 4805.89 |
| E-HCAD-15 | yes | 4511.08 |
| E-HCAD-1 | yes | 4067.20 |
| E-HCAD-11 | yes | 4059.88 |
| E-GEOD-134144 | yes | 3561.76 |
| E-MTAB-10287 | yes | 3543.79 |
| E-GEOD-124263 | yes | 3261.73 |
| E-MTAB-8410 | yes | 2708.99 |
| E-MTAB-8381 | yes | 2428.73 |
Regulation
Is transcription factor: yes
Downstream targets (CollecTRI)
3 targets.
| Target | Regulation |
|---|---|
| CLDN1 | Activation |
| CLDN15 | Activation |
| CLDN2 | Repression |
Upstream regulators (CollecTRI, top): CDH5, E2F1, ERG, ETV5, FOXO1, NFKB, NR3C1, RAMP2, RELA, RUNX1, SOX18
miRNA regulators (miRDB)
11 targeting CLDN5, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-6715A-3P | 99.83 | 68.05 | 1473 |
| HSA-MIR-3714 | 99.71 | 70.74 | 2671 |
| HSA-MIR-1207-5P | 99.49 | 69.11 | 2983 |
| HSA-MIR-4763-3P | 99.10 | 67.83 | 2649 |
| HSA-MIR-661 | 99.09 | 65.94 | 2062 |
| HSA-MIR-6715B-3P | 98.80 | 68.07 | 1204 |
| HSA-MIR-3135B | 98.61 | 65.33 | 1470 |
| HSA-MIR-4722-5P | 98.46 | 66.34 | 1611 |
| HSA-MIR-1287-5P | 96.80 | 65.30 | 743 |
| HSA-MIR-7108-3P | 94.37 | 64.79 | 183 |
| HSA-MIR-6869-3P | 83.17 | 65.88 | 30 |
Literature-anchored findings (GeneRIF, showing 40)
- Claudin 5 is transiently expressed during the development of the retinal pigment epithelium. (PMID:11944085)
- The Blood-Brain Barrier against small molecules (<800 D), but not larger molecules, was selectively affected in Claudin-5 deficient mice. (PMID:12743111)
- Airway tight junctions are regulated by claudin interactions that confer the selectivity of the junction. (PMID:12909588)
- Showed that residues located C-terminal to the last transmembrane domain of claudin 5 are required for the proper targeting to apical TJ.s. (PMID:15260435)
- CLDN5 protein may predispose to schizophrenia (PMID:15363474)
- CLDN5 may be involved in forming a permeability barrier in the gut and, together with DQB, confer a susceptibility to schizophrenia. (PMID:15617864)
- CLDN5 may be associated with schizophrenia in Chinese of Han descent (PMID:15820333)
- CLDN5 may be classified as a tight junction protein capable of “sealing” a tight junction. (PMID:16158492)
- gamma linolenic acid, iodine, and selenium alone, or in combination are able to strengthen the function of tight junctions in human endothelial cells, by way of regulating the distribution of Claudin-5, Occludin, and ZO-1 (PMID:16514648)
- overexpression of claudin-5 leads to formation of elaborate networks of junction strands, which are absent in untransduced endothelial cells (PMID:16959372)
- Claudin tight junction proteins in endoscopy biopsy samples showed Barrett’s metaplasia contains more claudin-2 and claudin-3 than found in normal esophageal mucosa, but markedly lower claudins 1 and 5, indicating very different tight junction barriers. (PMID:17103306)
- Squamous cell carcinomas were positive for CLDN-1 and negative for CLDN-5, whereas adenocarcinomas were positive for CLDN-5 and negative for CLDN-1. (PMID:17585317)
- data for the first time explain how two claudins hold onto each other and constrict the paracellular space. The intermolecular interface includes aromatic (F147, Y148, Y158) and hydrophilic (Q156, E159) residues (PMID:17761522)
- Data show that claudin-5 was only detected in human umbilical vein endothelial cells derived from healthy newborns with a strong family history of myocardial infarction. (PMID:17765294)
- an obligatory role for SOX-18 in the regulation of claudin-5 gene expression in an endothelial-specific and cell density-dependent manner is established (PMID:18065521)
- claudin-5 may participate in novel mechanisms in the pathway to end-stage heart failure. (PMID:18513742)
- endothelial VE-cadherin at AJs upregulates the gene encoding the TJ adhesive protein claudin-5 (PMID:18604199)
- For the first time this study proves the presence of Claudin-1, Claudin-3 and Claudin-5 in ECV304 (obtained from ECACC) cell layers and the inducibility of their expression by glioma-conditioned media. (PMID:18817843)
- Endothelial claudin 5 expression levels is associated with increased permeability. (PMID:19168871)
- Expression pattern of claudins 5 and 7 distinguishes solid-pseudopapillary from pancreatoblastoma, acinar cell and endocrine tumors of the pancreas. (PMID:19194274)
- claudin-4, in addition to 1 and 5, might be a useful differential diagnostic marker of lung cancer in Korean people. (PMID:19231096)
- Structure and function of extracellular claudin domains (PMID:19538285)
- Increased claudin-5 expression is associated with aggressive behavior in serous ovarian adenocarcinoma. (PMID:20044634)
- The results of this study showed weak association of the CLDN5 locus with schizophrenia in Chinese. (PMID:20452046)
- Claudin-1, -3, -4, -5, and -7 are expressed in developing human lung from week 12 to week 40 with distinct locations and in divergent quantities. (PMID:20478039)
- This study sought to determine the cell signaling mechanism controlling endothelial CLDN5 expression during acute lung injury. (PMID:20525806)
- tyrosine phosphorylation of claudin-5 is involved in the increased paracellular permeability of central nervous system-derived vascular endothelium induced by TGF-beta1. (PMID:21168935)
- Interendothelial claudin-5 expression depends on cerebral endothelial cell-matrix adhesion by beta(1)-integrins. (PMID:21772312)
- Data suggest that the degradation of tight junction proteins ZO-1, claudin-5 and occludin by MMP-2 and -9 secreted by leukemic cells constitutes an important mechanism in the BBB breakdown which contributes to the invasion of leukemic cells to the CNS. (PMID:21857898)
- Claudin-5 is a promising new marker for angiosarcomas and hemangioendotheliomas. (PMID:21959309)
- GDNF increased the expression of claudin-5 and the transendothelial electrical resistance (TEER) of BMECs and PnMECs, whereas BDNF did not have this effect (PMID:22002662)
- this study portrays a new and interesting role for Claudin-5 in cell motility involving the N-WASP and ROCK signalling cascade (PMID:22038628)
- ERG plays a pivotal role in regulating endothelial cell barrier function and that this effect is mediated in part through its regulation of CLDN5 gene expression. (PMID:22235125)
- Galphai2 as a novel claudin-5 partner required for TJ integrity in brain endothelial cells. (PMID:22333621)
- study demonstrated that claudin 5 is a protein with a short half-life that can undergo polyubiquitinationmainly on lysine 199, which apparently leads to its subsequent degradation (PMID:22389112)
- Study portrays a role for Claudin-5 in cell motility involving the N-WASP signalling cascade indicating a possible role for Claudin-5 in the metastasis of human breast cancer. (PMID:22559840)
- CLDN5 gene DNA meyhylation suggesting the pathogenesis of idiopathic pulmonary fibrosis. (PMID:22700861)
- Letter: confirm the endothelial cell origin of cutaneous angiosarcoma and demonstrate that both endoglin and claudin-5 show promise as markers for cutaneous angiosarcoma. (PMID:23000880)
- Over-expression of claudin-5 was sufficient to prevent replication-deficient virus-induced permeability (PMID:23115643)
- Claudin-5 expression and junctional organization controls intercellular barriers of human dermal microvascular but not human umbilical vein endothelial cells. (PMID:23288152)
Cross-species orthologs
4 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | cldn5b | ENSDARG00000014059 |
| danio_rerio | cldn5a | ENSDARG00000043716 |
| mus_musculus | Cldn5 | ENSMUSG00000041378 |
| rattus_norvegicus | Cldn5 | ENSRNOG00000077978 |
Paralogs (22): CLDN11 (ENSG00000013297), CLDN18 (ENSG00000066405), CLDN15 (ENSG00000106404), CLDN16 (ENSG00000113946), CLDN10 (ENSG00000134873), CLDN17 (ENSG00000156282), CLDN8 (ENSG00000156284), CLDN14 (ENSG00000159261), CLDN1 (ENSG00000163347), CLDN19 (ENSG00000164007), CLDN3 (ENSG00000165215), CLDN2 (ENSG00000165376), CLDN20 (ENSG00000171217), CLDN22 (ENSG00000177300), CLDN7 (ENSG00000181885), CLDN6 (ENSG00000184697), CLDN24 (ENSG00000185758), CLDN4 (ENSG00000189143), CLDN9 (ENSG00000213937), CLDN25 (ENSG00000228607), CLDN34 (ENSG00000234469), CLDN23 (ENSG00000253958)
Protein
Protein identifiers
Claudin-5 — O00501 (reviewed: O00501)
Alternative names: Transmembrane protein deleted in VCFS
All UniProt accessions (2): D3DX19, O00501
UniProt curated annotations — full annotation on UniProt →
Function. Plays a major role in tight junction-specific obliteration of the intercellular space.
Subunit / interactions. Directly interacts with TJP1/ZO-1, TJP2/ZO-2 and TJP3/ZO-3. Interacts with MPDZ.
Subcellular location. Cell junction. Tight junction. Cell membrane.
Similarity. Belongs to the claudin family.
RefSeq proteins (5): NP_001124333, NP_001349995, NP_001349996, NP_001413331, NP_003268 (=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR003551 | Claudin5 | Family |
| IPR004031 | PMP22/EMP/MP20/Claudin | Family |
| IPR006187 | Claudin | Family |
| IPR017974 | Claudin_CS | Conserved_site |
Pfam: PF00822
UniProt features (11 total): topological domain 5, transmembrane region 4, chain 1, region of interest 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-O00501-F1 | 83.42 | 0.51 |
Function
Pathways and Gene Ontology
Reactome pathways
2 pathways
| ID | Pathway |
|---|---|
| R-HSA-420029 | Tight junction interactions |
| R-HSA-8935964 | RUNX1 regulates expression of components of tight junctions |
MSigDB gene sets: 278 (showing top):
GOBP_ENDOTHELIAL_CELL_DEVELOPMENT, CREL_01, MODULE_52, GOBP_RESPONSE_TO_ETHANOL, GOBP_EPITHELIUM_DEVELOPMENT, GOBP_BODY_MORPHOGENESIS, WALLACE_PROSTATE_CANCER_RACE_UP, GOBP_COGNITION, GOBP_BEHAVIOR, GOBP_CIRCULATORY_SYSTEM_PROCESS, YAO_HOXA10_TARGETS_VIA_PROGESTERONE_UP, GOBP_EPITHELIAL_CELL_DEVELOPMENT, STARK_PREFRONTAL_CORTEX_22Q11_DELETION_DN, GOBP_APICAL_JUNCTION_ASSEMBLY, GOBP_REGULATION_OF_ENDOTHELIAL_CELL_DIFFERENTIATION
GO Biological Process (22): outflow tract morphogenesis (GO:0003151), cell-cell junction assembly (GO:0007043), cell adhesion (GO:0007155), transforming growth factor beta receptor signaling pathway (GO:0007179), learning (GO:0007612), positive regulation of cell population proliferation (GO:0008284), positive regulation of gene expression (GO:0010628), negative regulation of gene expression (GO:0010629), calcium-independent cell-cell adhesion (GO:0016338), negative regulation of angiogenesis (GO:0016525), negative regulation of cell migration (GO:0030336), maintenance of blood-brain barrier (GO:0035633), myelination (GO:0042552), negative regulation of vascular permeability (GO:0043116), response to ethanol (GO:0045471), roof of mouth development (GO:0060021), face morphogenesis (GO:0060325), bicellular tight junction assembly (GO:0070830), tight junction assembly (GO:0120192), positive regulation of establishment of endothelial barrier (GO:1903142), positive regulation of bicellular tight junction assembly (GO:1903348), establishment of blood-retinal barrier (GO:1990963)
GO Molecular Function (3): structural molecule activity (GO:0005198), identical protein binding (GO:0042802), protein binding (GO:0005515)
GO Cellular Component (12): plasma membrane (GO:0005886), cell-cell junction (GO:0005911), bicellular tight junction (GO:0005923), membrane (GO:0016020), apicolateral plasma membrane (GO:0016327), lateral plasma membrane (GO:0016328), cell junction (GO:0030054), paranode region of axon (GO:0033270), Schmidt-Lanterman incisure (GO:0043220), tight junction (GO:0070160), cortical actin cytoskeleton (GO:0030864), anchoring junction (GO:0070161)
Reactome top-level categories
Rollup of top-2 pathways:
| Category | Pathways |
|---|---|
| Cell-cell junction organization | 1 |
| Transcriptional regulation by RUNX1 | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| cellular anatomical structure | 5 |
| anatomical structure morphogenesis | 2 |
| gene expression | 2 |
| regulation of gene expression | 2 |
| heart morphogenesis | 1 |
| cell junction assembly | 1 |
| cell-cell junction organization | 1 |
| cellular process | 1 |
| cellular response to transforming growth factor beta stimulus | 1 |
| transforming growth factor beta receptor superfamily signaling pathway | 1 |
| learning or memory | 1 |
| cell population proliferation | 1 |
| regulation of cell population proliferation | 1 |
| positive regulation of cellular process | 1 |
| positive regulation of macromolecule biosynthetic process | 1 |
| negative regulation of macromolecule biosynthetic process | 1 |
| cell-cell adhesion | 1 |
| angiogenesis | 1 |
| regulation of angiogenesis | 1 |
| negative regulation of blood vessel morphogenesis | 1 |
| cell migration | 1 |
| regulation of cell migration | 1 |
| negative regulation of cell motility | 1 |
| tissue homeostasis | 1 |
| axon ensheathment | 1 |
| regulation of vascular permeability | 1 |
| response to alcohol | 1 |
| anatomical structure development | 1 |
| head morphogenesis | 1 |
| face development | 1 |
| apical junction assembly | 1 |
| tight junction assembly | 1 |
| cell-cell junction assembly | 1 |
| tight junction organization | 1 |
| establishment of endothelial barrier | 1 |
| positive regulation of endothelial cell development | 1 |
| regulation of establishment of endothelial barrier | 1 |
| molecular_function | 1 |
| protein binding | 1 |
| binding | 1 |
Protein interactions and networks
STRING
2492 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| CLDN5 | OCLN | Q16625 | 999 |
| CLDN5 | TJP1 | Q07157 | 999 |
| CLDN5 | TJP2 | Q9UDY2 | 990 |
| CLDN5 | CDH5 | P33151 | 989 |
| CLDN5 | F11R | Q9Y624 | 956 |
| CLDN5 | CLDN12 | P56749 | 918 |
| CLDN5 | ANGPTL4 | Q9BY76 | 907 |
| CLDN5 | CDH17 | Q12864 | 885 |
| CLDN5 | TJP3 | O95049 | 846 |
| CLDN5 | CLDN3 | O15551 | 844 |
| CLDN5 | GJA1 | P17302 | 819 |
| CLDN5 | PECAM1 | P16284 | 800 |
| CLDN5 | MARVELD2 | Q8N4S9 | 775 |
| CLDN5 | ESAM | Q96AP7 | 754 |
| CLDN5 | MMP9 | P14780 | 746 |
IntAct
112 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| VAMP5 | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| PMP22 | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| ERG28 | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| SFTPC | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TMEM182 | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TF | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | EFNA5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 | |
| CLDN5 | BTNL8 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | TMEM140 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | SLC35B4 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | RPRM | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | VAMP5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLRN2 | CLDN5 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | SGCG | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | PMP22 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | ERG28 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | ERMP1 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | TSPAN2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | CXCL9 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | CORIN | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | SFTPC | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | TMEM128 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | GYPA | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | CYB561A3 | psi-mi:“MI:0915”(physical association) | 0.560 |
| CLDN5 | EHHADH | psi-mi:“MI:0915”(physical association) | 0.560 |
BioGRID (41): CLDN5 (Affinity Capture-Western), CLDN3 (Affinity Capture-Western), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid), CLDN5 (Two-hybrid)
ESM2 similar proteins: A0A8C0N7E5, C3VMW3, D3ZQJ0, O00501, O14493, O15551, O19005, O35054, O35912, O54942, O88551, O95471, O95484, O95832, P56745, P56746, P56747, P56748, P56750, P78369, Q2HJ22, Q2KIY2, Q3B7N4, Q5E9L0, Q5QT56, Q5R8E5, Q63400, Q6BBL6, Q6DHB5, Q6DHP1, Q6L708, Q765N9, Q8BXA6, Q8N6F1, Q95KM5, Q9D1D1, Q9ET38, Q9JKD6, Q9QYW5, Q9YH90
Diamond homologs: A0A8C0N7E5, A6NM45, C3VMW3, C9JDP6, D3ZQJ0, O00501, O14493, O15551, O19005, O35054, O54942, O75508, O88551, O88552, O95471, O95484, O95500, O95832, P56745, P56746, P56747, P56748, P56750, P56856, P56857, P56880, P57739, P78369, Q0VCN0, Q2HJ22, Q2KIY2, Q3B7N4, Q3MHK4, Q4R3L1, Q5E9L0, Q5I0E5, Q5QT56, Q5R8E5, Q60771, Q63400
SIGNOR signaling
1 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| ERG | “up-regulates quantity by expression” | CLDN5 | “transcriptional regulation” |
Disease & clinical
Clinical variants and AI predictions
ClinVar
53 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 6 |
| Likely pathogenic | 4 |
| Uncertain significance | 34 |
| Likely benign | 7 |
| Benign | 2 |
Top pathogenic / likely-pathogenic (10)
| Variant ID | HGVS | Classification |
|---|---|---|
| 2628323 | NM_001363066.2(CLDN5):c.178G>A (p.Gly60Arg) | Pathogenic |
| 3340659 | NM_001363066.2(CLDN5):c.121G>A (p.Val41Met) | Pathogenic |
| 3770191 | NM_001363066.2(CLDN5):c.176C>T (p.Thr59Ile) | Pathogenic |
| 816201 | GRCh37/hg19 22q11.21(chr22:18970561-21040836)x3 | Pathogenic |
| 997047 | GRCh37/hg19 22q11.21(chr22:18628019-20311763) | Pathogenic |
| 997809 | Single allele | Pathogenic |
| 2572405 | NM_001363066.2(CLDN5):c.187C>A (p.Gln63Lys) | Likely pathogenic |
| 3067178 | NM_001363066.2(CLDN5):c.175_177dup (p.Thr59_Gly60insThr) | Likely pathogenic |
| 393549 | GRCh37/hg19 22q11.21(chr22:18915347-21463730)x1 | Likely pathogenic |
| 4537854 | NM_001363066.2(CLDN5):c.174C>G (p.Ser58Arg) | Likely pathogenic |
SpliceAI
176 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 22:19523661:TC:T | donor_gain | 0.6700 |
| 22:19523607:A:AC | donor_gain | 0.6500 |
| 22:19523613:T:TA | donor_gain | 0.6300 |
| 22:19523661:T:TA | donor_gain | 0.6200 |
| 22:19523544:AT:A | donor_gain | 0.6100 |
| 22:19523535:C:A | donor_gain | 0.5700 |
| 22:19523479:T:A | donor_gain | 0.5500 |
| 22:19523496:CCGCG:C | donor_gain | 0.5500 |
| 22:19523497:CGCGC:C | donor_gain | 0.5500 |
| 22:19523592:AGCGC:A | donor_gain | 0.5500 |
| 22:19523596:C:CA | donor_gain | 0.5500 |
| 22:19523659:CT:C | donor_gain | 0.5500 |
| 22:19523660:TT:T | donor_gain | 0.5500 |
| 22:19523871:C:CT | acceptor_gain | 0.5500 |
| 22:19523372:T:TA | donor_gain | 0.5400 |
| 22:19523501:C:CT | donor_gain | 0.5400 |
| 22:19523502:T:TT | donor_gain | 0.5400 |
| 22:19523787:T:TA | donor_gain | 0.5300 |
| 22:19523534:C:CA | donor_gain | 0.5200 |
| 22:19523607:AGTT:A | donor_gain | 0.5200 |
| 22:19523724:CGCCT:C | donor_loss | 0.5200 |
| 22:19523725:GCCTA:G | donor_loss | 0.5200 |
| 22:19523726:CCTA:C | donor_loss | 0.5200 |
| 22:19523727:CTA:C | donor_loss | 0.5200 |
| 22:19523728:TACC:T | donor_loss | 0.5200 |
| 22:19523729:A:C | donor_loss | 0.5200 |
| 22:19523731:C:G | donor_loss | 0.5100 |
| 22:19523352:C:CT | acceptor_gain | 0.4900 |
| 22:19523608:G:C | donor_gain | 0.4900 |
| 22:19523729:A:AC | donor_gain | 0.4900 |
AlphaMissense
1371 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 22:19523815:A:C | F147L | 0.998 |
| 22:19523815:A:T | F147L | 0.998 |
| 22:19523817:A:G | F147L | 0.998 |
| 22:19524111:C:G | G49R | 0.997 |
| 22:19524111:C:T | G49R | 0.997 |
| 22:19524166:C:A | W30C | 0.997 |
| 22:19524166:C:G | W30C | 0.997 |
| 22:19524065:C:G | C64S | 0.996 |
| 22:19524066:A:T | C64S | 0.996 |
| 22:19524103:C:A | W51C | 0.996 |
| 22:19524103:C:G | W51C | 0.996 |
| 22:19524105:A:G | W51R | 0.996 |
| 22:19524105:A:T | W51R | 0.996 |
| 22:19523775:C:A | G161C | 0.994 |
| 22:19523775:C:G | G161R | 0.994 |
| 22:19523816:A:C | F147C | 0.994 |
| 22:19524095:C:T | C54Y | 0.994 |
| 22:19524110:C:T | G49E | 0.994 |
| 22:19524111:C:A | G49W | 0.994 |
| 22:19524168:A:G | W30R | 0.994 |
| 22:19524168:A:T | W30R | 0.994 |
| 22:19523754:A:G | W168R | 0.993 |
| 22:19523754:A:T | W168R | 0.993 |
| 22:19524066:A:G | C64R | 0.993 |
| 22:19524095:C:G | C54S | 0.993 |
| 22:19524096:A:T | C54S | 0.993 |
| 22:19524151:G:C | F35L | 0.993 |
| 22:19524151:G:T | F35L | 0.993 |
| 22:19524153:A:G | F35L | 0.993 |
| 22:19523774:C:A | G161V | 0.992 |
dbSNP variants (sampled 300 via entrez): RS1001152998 (22:19523146 C>G), RS1001730761 (22:19526481 T>C), RS1001851757 (22:19523168 G>A,C), RS1002526343 (22:19523309 G>A), RS1002674658 (22:19524749 C>T), RS1003136632 (22:19524957 C>T), RS1003246157 (22:19524348 C>G,T), RS1003843461 (22:19525560 C>T), RS1004906615 (22:19526305 C>G), RS1004957401 (22:19526511 T>A), RS1005133070 (22:19527211 G>T), RS1005638063 (22:19524230 A>G), RS1006030052 (22:19522800 C>T), RS1008024423 (22:19525190 G>A,C), RS1008493089 (22:19524956 C>T)
Disease associations
OMIM: gene MIM:602101 | disease phenotypes: MIM:192350
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| neurodevelopmental disorder | Limited | Autosomal dominant |
Mondo (5): syndromic disease (MONDO:0002254), neurodevelopmental disorder (MONDO:0700092), VACTERL/vater association (MONDO:0008642), intellectual disability (MONDO:0001071), epilepsy (MONDO:0005027)
Orphanet (2): VACTERL/VATER association (Orphanet:887), NON RARE IN EUROPE: Unexplained intellectual disability (Orphanet:319658)
HPO phenotypes
0 total (0 of 0 shown, HPO-id order):
GWAS associations
0 associations (top):
MeSH disease descriptors (4)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D004827 | Epilepsy | C10.228.140.490 |
| D008607 | Intellectual Disability | C10.597.606.360; C23.888.592.604.646; F01.700.687; F03.625.539 |
| D065886 | Neurodevelopmental Disorders | F03.625 |
| D013577 | Syndrome | C23.550.288.500 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
57 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| 2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one | decreases reaction, increases expression, decreases expression | 3 |
| sodium bisulfide | decreases expression, decreases reaction, increases abundance | 2 |
| deguelin | decreases expression, increases expression | 2 |
| Acetylcysteine | affects localization, decreases expression, decreases reaction | 2 |
| Benzo(a)pyrene | affects methylation, increases expression | 2 |
| Dexamethasone | decreases expression, decreases reaction, increases abundance | 2 |
| Nickel | decreases reaction, affects expression, decreases expression | 2 |
| Progesterone | affects cotreatment, increases expression | 2 |
| Tobacco Smoke Pollution | decreases expression, increases expression | 2 |
| Particulate Matter | decreases expression, increases abundance, decreases reaction, affects reaction | 2 |
| N-(1,2,3,5,6,7-hexahydro-S-indacen-4-ylcarbamoyl)-4-(2-hydroxy-2-propanyl)-2-furansulfonamide | decreases expression, decreases reaction | 1 |
| linsidomine | decreases expression | 1 |
| oxybenzone | decreases expression | 1 |
| 9,10-phenanthrenequinone | affects localization, decreases expression, decreases reaction, increases reaction | 1 |
| triphenyl phosphate | affects expression | 1 |
| sanguinarine | decreases expression | 1 |
| palmidrol | decreases expression | 1 |
| bisphenol A | affects cotreatment, increases methylation | 1 |
| lead acetate | decreases expression, decreases reaction | 1 |
| trichostatin A | affects expression, decreases reaction | 1 |
| tobacco tar | decreases expression | 1 |
| diallyl disulfide | decreases expression | 1 |
| S-(1,2-dichlorovinyl)cysteine | affects cotreatment, decreases expression | 1 |
| loxoprofen | increases expression | 1 |
| diallyl trisulfide | decreases expression | 1 |
| cordycepin | decreases expression | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| benzyloxycarbonylleucyl-leucyl-leucine aldehyde | decreases expression, decreases reaction, affects localization | 1 |
| 1,3-dihydroxy-4,4,5,5-tetramethyl-2-(4-carboxyphenyl)tetrahydroimidazole | decreases expression, decreases reaction | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
Cellosaurus cell lines
2 cell lines: 1 cancer cell line, 1 transformed cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_C3VB | HT-1080/hCLDN-5 | Cancer cell line | Male |
| CVCL_D3PP | CHO/CLDN5 | Transformed cell line | Female |
Clinical trials (associated diseases)
275 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT04586348 | PHASE4 | UNKNOWN | Prenatal Iodine Supplementation and Early Childhood Neurodevelopment |
| NCT04873115 | PHASE4 | UNKNOWN | Double-blind, Placebo-controlled, Randomized Clinical Trial Comparing the Efficacy and Safety of Sialanar Plus orAl rehabiLitation Against Placebo Plus Oral Rehabilitation for chIldren and Adolescents With seVere Sialorrhoea and Neurodisabilties, |
| NCT05657860 | PHASE4 | COMPLETED | Guanfacine Extended Release for the Reduction of Aggression and Self-injurious Behavior Associated With Prader-Willi Syndrome |
| NCT05744479 | PHASE4 | RECRUITING | Metformin for Antipsychotic-induced Weight Gain in Adults With Intellectual Disability |
| NCT06107829 | PHASE4 | WITHDRAWN | Valbenazine Treatment of Tardive Dyskinesia in Adults With Intellectual/Developmental Disabilities |
| NCT06997198 | PHASE4 | NOT_YET_RECRUITING | Deutetrabenazine Treatment for Tardive Dyskinesia in Intellectual/Developmental Disabilities |
| NCT02559102 | PHASE3 | COMPLETED | Dexmedetomidine Sedation Versus General Anaesthesia for Inguinal Hernia Surgery in Infants |
| NCT02757079 | PHASE3 | COMPLETED | Study of the Efficacy and Safety of NPC-15 for Sleep Disorders of Children With Neurodevelopmental Disorders |
| NCT06915480 | PHASE3 | RECRUITING | Reducing Missed Appointments |
| NCT07377032 | PHASE3 | RECRUITING | TAP-GRIN: Interventional Study on Patients With GRIN-related Neurodevelopmental Disorders |
| NCT02270736 | PHASE3 | COMPLETED | Clinical Study to Investigate the Efficacy and Safety of NT 201 Compared to Placebo in the Treatment of Chronic Troublesome Drooling Associated With Neurological Disorders and/or Intellectual Disability |
| NCT02909959 | PHASE2 | COMPLETED | Sulforaphane for the Treatment of Young Men With Autism Spectrum Disorder |
| NCT06081348 | PHASE2 | RECRUITING | Sertraline vs. Placebo in the Treatment of Anxiety in Children and AdoLescents With NeurodevelopMental Disorders |
| NCT06352372 | PHASE2 | COMPLETED | Safety and Efficacy of tPBM for Epileptiform Activity in Autism |
| NCT00027456 | PHASE2 | COMPLETED | Leptin to Treat Severe Insulin Resistance - Pilot Study |
| NCT02304302 | PHASE2 | COMPLETED | Down Syndrome Memantine Follow-up Study |
| NCT03862950 | PHASE2 | COMPLETED | A Trial of Metformin in Individuals With Fragile X Syndrome (Met) |
| NCT04529226 | PHASE2 | UNKNOWN | Study to Compare Clozapine vs Treatment as Usual in People With Intellectual Disability & Treatment-resistant Psychosis |
| NCT04821856 | PHASE2 | COMPLETED | Evaluation of the Effectiveness of Cannabidiol in Treating Severe Behavioural Problems in Children and Adolescents With Intellectual Disability |
| NCT00503191 | PHASE1 | COMPLETED | NeuroModulation Technique Treatment of Autism |
| NCT04475848 | PHASE1 | COMPLETED | A Study to Investigate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Food Effect of RO6953958 in Healthy Participants |
| NCT06300398 | PHASE1 | COMPLETED | IAMA-6 Oral Dose Study in Healthy Adults |
| NCT05273320 | PHASE1 | COMPLETED | Clinical Trial of Nabilone for Aggression in Adults With Intellectual and Developmental Disabilities |
| NCT05301361 | PHASE1 | ENROLLING_BY_INVITATION | Sensitivity of the NIH Toolbox to Stimulant Treatment in Intellectual Disabilities |
| NCT06016764 | PHASE1 | COMPLETED | Use of MRI and cTBS for Catatonia in Autism |
| NCT06586827 | PHASE1 | COMPLETED | Impact of Competency-Based Training and Technical Assistance Employment Outcomes of Individuals With ID/DD |
| NCT07531940 | PHASE1 | NOT_YET_RECRUITING | Escalating Doses of Memantine in Down Syndrome (MEDS-123) |
| NCT01783041 | PHASE2/PHASE3 | COMPLETED | Effect of Early L-Carnitine Supplementation on Neurodevelopmental Outcomes in Very Preterm Infants |
| NCT05767385 | PHASE2/PHASE3 | RECRUITING | Fetal Cerebrovascular Autoregulation in Congenital Heart Disease and Association With Neonatal Neurobehavior |
| NCT05675098 | EARLY_PHASE1 | NOT_YET_RECRUITING | Central Nervous System Stimulants and Physical Function in Children With Cerebral Palsy |
| NCT00783783 | Not specified | COMPLETED | CYP2D6 Pharmacogenetics in Risperidone-Treated Children |
| NCT01778504 | Not specified | RECRUITING | Studying Childhood-onset Behavioral, Psychiatric, and Developmental Disorders |
| NCT01850784 | Not specified | UNKNOWN | High Energy Formula Feeding in Infants With Congenital Heart Disease |
| NCT01922791 | Not specified | COMPLETED | Nutrition and Pregnancy Intervention Study |
| NCT01942525 | Not specified | UNKNOWN | Influence of Intrauterine Growth Restriction on Amplitude-integrated EEG in Preterm Infants |
| NCT02003170 | Not specified | COMPLETED | Etiology and Early Diagnosis of Neurodevelopmental Disorders |
| NCT02118649 | Not specified | ACTIVE_NOT_RECRUITING | Enhancing Behavior and Brain Response to Visual Targets Using a Computer Game |
| NCT02557191 | Not specified | TERMINATED | Biomarkers, Neurodevelopment and Preterm Infants |
| NCT02690675 | Not specified | COMPLETED | Iron Supplement Effect on Child Development |
| NCT02694003 | Not specified | COMPLETED | Better Nights, Better Days for Children With Neurodevelopment Disorders |
Related Atlas pages
- Associated diseases: neurodevelopmental disorder
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): neurodevelopmental disorder, syndromic disease, VACTERL/vater association