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Aliases for CLDN1 Gene

Aliases for CLDN1 Gene

  • Claudin 1 2 3
  • SEMP1 3 4 6
  • Senescence-Associated Epithelial Membrane Protein 1 2 3
  • ILVASC 3 6
  • CLD1 3 4
  • Senescence-Associated Epithelial Membrane Protein 4
  • Claudin-1 3

External Ids for CLDN1 Gene

Previous GeneCards Identifiers for CLDN1 Gene

  • GC03M187025
  • GC03M191284
  • GC03M191425
  • GC03M191344
  • GC03M191506
  • GC03M190023
  • GC03M187423

Summaries for CLDN1 Gene

Entrez Gene Summary for CLDN1 Gene

  • Tight junctions represent one mode of cell-to-cell adhesion in epithelial or endothelial cell sheets, forming continuous seals around cells and serving as a physical barrier to prevent solutes and water from passing freely through the paracellular space. These junctions are comprised of sets of continuous networking strands in the outwardly facing cytoplasmic leaflet, with complementary grooves in the inwardly facing extracytoplasmic leaflet. The protein encoded by this gene, a member of the claudin family, is an integral membrane protein and a component of tight junction strands. Loss of function mutations result in neonatal ichthyosis-sclerosing cholangitis syndrome. [provided by RefSeq, Jul 2008]

GeneCards Summary for CLDN1 Gene

CLDN1 (Claudin 1) is a Protein Coding gene. Diseases associated with CLDN1 include ichthyosis, leukocyte vacuoles, alopecia, and sclerosing cholangitis and sclerosing cholangitis. Among its related pathways are Integrin Pathway and Adhesion. GO annotations related to this gene include identical protein binding and structural molecule activity. An important paralog of this gene is CLDN9.

UniProtKB/Swiss-Prot for CLDN1 Gene

  • Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. While some claudin family members play essential roles in the formation of impermeable barriers, others mediate the permeability to ions and small molecules. Often, several claudin family members are coexpressed and interact with each other, and this determines the overall permeability. CLDN1 is required to prevent the paracellular diffusion of small molecules through tight junctions in the epidermis and is required for the normal barrier function of the skin. Required for normal water homeostasis and to prevent excessive water loss through the skin, probably via an indirect effect on the expression levels of other proteins, since CLDN1 itself seems to be dispensable for water barrier formation in keratinocyte tight junctions (PubMed:23407391). CLDN1 acts as a coreceptor for HCV entry into hepatic cells.

Gene Wiki entry for CLDN1 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for CLDN1 Gene

Genomics for CLDN1 Gene

Regulatory Elements for CLDN1 Gene

Epigenetics Products

  • DNA Methylation CpG Assay Predesigned for Pyrosequencing in human,mouse,rat

Genomic Location for CLDN1 Gene

Start:
190,305,701 bp from pter
End:
190,322,475 bp from pter
Size:
16,775 bases
Orientation:
Minus strand

Genomic View for CLDN1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for CLDN1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for CLDN1 Gene

Proteins for CLDN1 Gene

  • Protein details for CLDN1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    O95832-CLD1_HUMAN
    Recommended name:
    Claudin-1
    Protein Accession:
    O95832
    Secondary Accessions:

    Protein attributes for CLDN1 Gene

    Size:
    211 amino acids
    Molecular mass:
    22744 Da
    Quaternary structure:
    • Homopolymers interact with CLDN3, but not CLDN2, homopolymers. Directly interacts with TJP1/ZO-1, TJP2/ZO-2 and TJP3/ZO-3. Interacts with MPDZ and INADL (By similarity). Can form homo- and heteropolymers with other claudin family members. May interact with HCV E1 and E2 proteins.

neXtProt entry for CLDN1 Gene

Proteomics data for CLDN1 Gene at MOPED

Post-translational modifications for CLDN1 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for CLDN1 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

Antibody Products

  • Cell Signaling Technology (CST) Antibodies for CLDN1 (Claudin-1)

No data available for DME Specific Peptides for CLDN1 Gene

Domains for CLDN1 Gene

Gene Families for CLDN1 Gene

HGNC:

Protein Domains for CLDN1 Gene

Graphical View of Domain Structure for InterPro Entry

O95832

UniProtKB/Swiss-Prot:

CLD1_HUMAN :
  • O95832
Family:
  • Belongs to the claudin family.
genes like me logo Genes that share domains with CLDN1: view

Function for CLDN1 Gene

Molecular function for CLDN1 Gene

GENATLAS Biochemistry: claudin 1,clostridium perfringens enterotoxin receptor 1,claudin family of major structural components of tight junction (TJ) strands,expressed in thyroid,placenta,pancreas,lung and kidney
UniProtKB/Swiss-Prot Function: Claudins function as major constituents of the tight junction complexes that regulate the permeability of epithelia. While some claudin family members play essential roles in the formation of impermeable barriers, others mediate the permeability to ions and small molecules. Often, several claudin family members are coexpressed and interact with each other, and this determines the overall permeability. CLDN1 is required to prevent the paracellular diffusion of small molecules through tight junctions in the epidermis and is required for the normal barrier function of the skin. Required for normal water homeostasis and to prevent excessive water loss through the skin, probably via an indirect effect on the expression levels of other proteins, since CLDN1 itself seems to be dispensable for water barrier formation in keratinocyte tight junctions (PubMed:23407391). CLDN1 acts as a coreceptor for HCV entry into hepatic cells.

Gene Ontology (GO) - Molecular Function for CLDN1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005198 structural molecule activity IEA --
GO:0005515 protein binding IPI 20651236
GO:0042802 identical protein binding ISS --
genes like me logo Genes that share ontologies with CLDN1: view

Phenotypes for CLDN1 Gene

genes like me logo Genes that share phenotypes with CLDN1: view

Animal Models for CLDN1 Gene

MGI Knock Outs for CLDN1:

Animal Model Products

miRNA for CLDN1 Gene

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for CLDN1

Clone Products

  • Addgene plasmids for CLDN1

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Transcription Factor Targeting and HOMER Transcription for CLDN1 Gene

Localization for CLDN1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for CLDN1 Gene

Cell junction, tight junction. Cell membrane; Multi-pass membrane protein.

Subcellular locations from

COMPARTMENTS
Jensen Localization Image for CLDN1 Gene COMPARTMENTS Subcellular localization image for CLDN1 gene
Compartment Confidence
plasma membrane 5
cytoskeleton 2
extracellular 2
endosome 1
nucleus 1

Gene Ontology (GO) - Cellular Components for CLDN1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005886 plasma membrane --
GO:0005887 integral component of plasma membrane IMP 23407391
GO:0005923 bicellular tight junction ISS --
GO:0016021 integral component of membrane TAS 9931503
GO:0016324 apical plasma membrane IEA --
genes like me logo Genes that share ontologies with CLDN1: view

Pathways for CLDN1 Gene

genes like me logo Genes that share pathways with CLDN1: view

PCR Array Products

  • Pathway & Disease-focused RT² Profiler PCR Arrays

Gene Ontology (GO) - Biological Process for CLDN1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0007155 cell adhesion TAS 9647647
GO:0016032 viral process IEA --
GO:0016338 calcium-independent cell-cell adhesion via plasma membrane cell-adhesion molecules ISS --
GO:0045216 cell-cell junction organization IMP 20164257
GO:0061436 establishment of skin barrier IMP 23407391
genes like me logo Genes that share ontologies with CLDN1: view

Compounds for CLDN1 Gene

(1) HMDB Compounds for CLDN1 Gene

Compound Synonyms Cas Number PubMed IDs
Calcium
  • Ca
7440-70-2
genes like me logo Genes that share compounds with CLDN1: view

Transcripts for CLDN1 Gene

mRNA/cDNA for CLDN1 Gene

(243) Selected AceView cDNA sequences:
(12) Additional mRNA sequences :
(1) REFSEQ mRNAs :
(2) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Unigene Clusters for CLDN1 Gene

Claudin 1:
Representative Sequences:

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for CLDN1

Clone Products

  • Addgene plasmids for CLDN1

Primer Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for CLDN1 Gene

No ASD Table

Relevant External Links for CLDN1 Gene

GeneLoc Exon Structure for
CLDN1
ECgene alternative splicing isoforms for
CLDN1

Expression for CLDN1 Gene

mRNA expression in normal human tissues for CLDN1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for CLDN1 Gene

This gene is overexpressed in Skin - Sun Exposed (Lower leg) (12.4), Skin - Not Sun Exposed (Suprapubic) (11.7), and Liver (5.1).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for CLDN1 Gene

SOURCE GeneReport for Unigene cluster for CLDN1 Gene Hs.439060

mRNA Expression by UniProt/SwissProt for CLDN1 Gene

O95832-CLD1_HUMAN
Tissue specificity: Strongly expressed in liver and kidney. Expressed in heart, brain, spleen, lung and testis.
genes like me logo Genes that share expressions with CLDN1: view

In Situ Assay Products

Orthologs for CLDN1 Gene

This gene was present in the common ancestor of chordates.

Orthologs for CLDN1 Gene

Organism Taxonomy Gene Similarity Type Details
chimpanzee
(Pan troglodytes)
Mammalia CLDN1 35
  • 99.53 (n)
  • 100 (a)
CLDN1 36
  • 100 (a)
OneToOne
cow
(Bos Taurus)
Mammalia CLDN1 35
  • 91.31 (n)
  • 92.89 (a)
CLDN1 36
  • 93 (a)
OneToOne
dog
(Canis familiaris)
Mammalia CLDN1 35
  • 91.79 (n)
  • 93.36 (a)
CLDN1 36
  • 93 (a)
OneToOne
mouse
(Mus musculus)
Mammalia Cldn1 35
  • 88.15 (n)
  • 90.52 (a)
Cldn1 16
Cldn1 36
  • 91 (a)
OneToOne
oppossum
(Monodelphis domestica)
Mammalia CLDN1 36
  • 89 (a)
OneToOne
platypus
(Ornithorhynchus anatinus)
Mammalia CLDN1 36
  • 80 (a)
OneToOne
rat
(Rattus norvegicus)
Mammalia Cldn1 35
  • 87.2 (n)
  • 90.52 (a)
chicken
(Gallus gallus)
Aves CLDN1 35
  • 72.99 (n)
  • 74.41 (a)
CLDN1 36
  • 74 (a)
OneToOne
lizard
(Anolis carolinensis)
Reptilia CLDN1 36
  • 78 (a)
OneToOne
tropical clawed frog
(Silurana tropicalis)
Amphibia cldn1 35
  • 65.56 (n)
  • 67.3 (a)
zebrafish
(Danio rerio)
Actinopterygii -- 35
cldn1 35
  • 61.6 (n)
  • 54.41 (a)
Species with no ortholog for CLDN1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for CLDN1 Gene

ENSEMBL:
Gene Tree for CLDN1 (if available)
TreeFam:
Gene Tree for CLDN1 (if available)

Paralogs for CLDN1 Gene

Selected SIMAP similar genes for CLDN1 Gene using alignment to 2 proteins:

genes like me logo Genes that share paralogs with CLDN1: view

Variants for CLDN1 Gene

Sequence variations from dbSNP and Humsavar for CLDN1 Gene

SNP ID Clin Chr 03 pos Sequence Context AA Info Type MAF
rs8298 -- 190,305,763(+) ATTCC(C/T)ATTAT utr-variant-3-prime
rs8798 -- 190,306,048(+) GACAC(A/G)GTGGC utr-variant-3-prime
rs746286 -- 190,321,358(+) GGGGG(A/G)ATCTC intron-variant
rs893051 -- 190,321,812(-) GAAAG(C/G)GACGC intron-variant
rs893052 -- 190,320,968(-) ACTTT(G/T)TTTTT intron-variant

Relevant External Links for CLDN1 Gene

HapMap Linkage Disequilibrium report
CLDN1
Human Gene Mutation Database (HGMD)
CLDN1

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot and Structural Variations from Database of Genomic Variants (DGV) for CLDN1 Gene

Disorders for CLDN1 Gene

(1) OMIM Diseases for CLDN1 Gene (603718)

UniProtKB/Swiss-Prot

CLD1_HUMAN
  • Ichthyosis-sclerosing cholangitis neonatal syndrome (NISCH) [MIM:607626]: A rare autosomal recessive complex ichthyosis syndrome characterized by scalp hypotrichosis, scarring alopecia, mild diffuse ichthyosis, sclerosing cholangitis and leukocyte vacuolization. {ECO:0000269 PubMed:15521008, ECO:0000269 PubMed:16619213}. Note=The disease is caused by mutations affecting the gene represented in this entry.

(2) University of Copenhagen DISEASES for CLDN1 Gene

(5) Novoseek inferred disease relationships for CLDN1 Gene

Disease -log(P) Hits PubMed IDs
breast cancer 22.6 14
breast carcinoma 18.2 1
tumors 11.5 14
carcinoma 2.57 3
metastasis 0 6

Relevant External Links for CLDN1

Genetic Association Database (GAD)
CLDN1
Human Genome Epidemiology (HuGE) Navigator
CLDN1
genes like me logo Genes that share disorders with CLDN1: view

Publications for CLDN1 Gene

  1. Assignment of claudin-1 (CLDN1) to human chromosome 3q28-->q29 with somatic cell hybrids. (PMID: 10828592) Halford S. … Adamson P. (Cytogenet. Cell Genet. 2000) 2 3 4 23
  2. Genomic organization of claudin-1 and its assessment in hereditary and sporadic breast cancer. (PMID: 11071387) Kraemer F. … Weber B.H.F. (Hum. Genet. 2000) 3 4 23
  3. Claudin-1 is a hepatitis C virus co-receptor required for a late step in entry. (PMID: 17325668) Evans M.J. … Rice C.M. (Nature 2007) 3 4 23
  4. SEMP1, a senescence-associated cDNA isolated from human mammary epithelial cells, is a member of an epithelial membrane protein superfamily. (PMID: 9931503) Swisshelm K.L. … Hosier S. (Gene 1999) 3 4 23
  5. The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment. (PMID: 12975309) Clark H.F. … Gray A.M. (Genome Res. 2003) 3 4

Products for CLDN1 Gene

  • Addgene plasmids for CLDN1

Sources for CLDN1 Gene

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