Free for academic non-profit institutions. Other users need a Commercial license

Aliases for KRT18 Gene

Aliases for KRT18 Gene

  • Keratin 18 2 3
  • Keratin 18, Type I 2 3 5
  • Cell Proliferation-Inducing Gene 46 Protein 3 4
  • CK-18 3 4
  • CYK18 3 4
  • K18 3 4
  • Cytokeratin 18 3
  • Cytokeratin-18 4
  • Keratin-18 4

External Ids for KRT18 Gene

Previous GeneCards Identifiers for KRT18 Gene

  • GC12M053340
  • GC12M053554
  • GC12P053059
  • GC12P051630
  • GC12P051631
  • GC12P051632
  • GC12P053343
  • GC12P050386

Summaries for KRT18 Gene

Entrez Gene Summary for KRT18 Gene

  • KRT18 encodes the type I intermediate filament chain keratin 18. Keratin 18, together with its filament partner keratin 8, are perhaps the most commonly found members of the intermediate filament gene family. They are expressed in single layer epithelial tissues of the body. Mutations in this gene have been linked to cryptogenic cirrhosis. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Jul 2008]

GeneCards Summary for KRT18 Gene

KRT18 (Keratin 18) is a Protein Coding gene. Diseases associated with KRT18 include cirrhosis, cryptogenic and microglandular adenosis. Among its related pathways are EGFR1 Signaling Pathway and Development Slit-Robo signaling. GO annotations related to this gene include poly(A) RNA binding and scaffold protein binding. An important paralog of this gene is KRT23.

UniProtKB/Swiss-Prot for KRT18 Gene

  • Involved in the uptake of thrombin-antithrombin complexes by hepatic cells (By similarity). When phosphorylated, plays a role in filament reorganization. Involved in the delivery of mutated CFTR to the plasma membrane. Together with KRT8, is involved in interleukin-6 (IL-6)-mediated barrier protection.

Gene Wiki entry for KRT18 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KRT18 Gene

Genomics for KRT18 Gene

Regulatory Elements for KRT18 Gene

Promoters for KRT18 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

ENSRs around KRT18 on UCSC Golden Path with GeneCards custom track

Transcription factor binding sites by QIAGEN in the KRT18 gene promoter:

Genomic Location for KRT18 Gene

Chromosome:
12
Start:
52,948,871 bp from pter
End:
52,952,901 bp from pter
Size:
4,031 bases
Orientation:
Plus strand

Genomic View for KRT18 Gene

Genes around KRT18 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
KRT18 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for KRT18 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for KRT18 Gene

Proteins for KRT18 Gene

  • Protein details for KRT18 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    P05783-K1C18_HUMAN
    Recommended name:
    Keratin, type I cytoskeletal 18
    Protein Accession:
    P05783
    Secondary Accessions:
    • Q53G38
    • Q5U0N8
    • Q9BW26

    Protein attributes for KRT18 Gene

    Size:
    430 amino acids
    Molecular mass:
    48058 Da
    Quaternary structure:
    • Heterotetramer of two type I and two type II keratins. KRT18 associates with KRT8. Interacts with the thrombin-antithrombin complex (By similarity). Interacts with PNN, HCV core protein and mutated CFTR. Interacts with YWHAE, YWHAH and YWHAZ only when phosphorylated. Interacts with DNAJB6, TCHP and TRADD. Interacts with FAM83H (PubMed:23902688).
    Miscellaneous:
    • There are two types of cytoskeletal and microfibrillar keratin: I (acidic; 40-55 kDa) and II (neutral to basic; 56-70 kDa).

neXtProt entry for KRT18 Gene

Proteomics data for KRT18 Gene at MOPED

Post-translational modifications for KRT18 Gene

  • O-GlcNAcylation increases solubility, and decreases stability by inducing proteasomal degradation.
  • Phosphorylation at Ser-34 increases during mitosis. Hyperphosphorylated at Ser-53 in diseased cirrhosis liver. Phosphorylation increases by IL-6.
  • Proteolytically cleaved by caspases during epithelial cell apoptosis. Cleavage occurs at Asp-238 by either caspase-3, caspase-6 or caspase-7.
  • Ubiquitination at Lys 131, Lys 167, and Lys 247
  • Glycosylation at Ser 30, Ser 31, and Ser 49
  • Modification sites at PhosphoSitePlus

Other Protein References for KRT18 Gene

No data available for DME Specific Peptides for KRT18 Gene

Domains & Families for KRT18 Gene

Gene Families for KRT18 Gene

Suggested Antigen Peptide Sequences for KRT18 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry

P05783

UniProtKB/Swiss-Prot:

K1C18_HUMAN :
  • Belongs to the intermediate filament family.
Family:
  • Belongs to the intermediate filament family.
genes like me logo Genes that share domains with KRT18: view

Function for KRT18 Gene

Molecular function for KRT18 Gene

GENATLAS Biochemistry:
keratin 18,type I,early embryonic simple epithelia,dimerizing with KRT8,including a 3 locus control region KRT18-LCR
UniProtKB/Swiss-Prot Function:
Involved in the uptake of thrombin-antithrombin complexes by hepatic cells (By similarity). When phosphorylated, plays a role in filament reorganization. Involved in the delivery of mutated CFTR to the plasma membrane. Together with KRT8, is involved in interleukin-6 (IL-6)-mediated barrier protection.
UniProtKB/Swiss-Prot Induction:
By IL6/interleukin-6.
genes like me logo Genes that share phenotypes with KRT18: view

Human Phenotype Ontology for KRT18 Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for KRT18 Gene

MGI Knock Outs for KRT18:

Animal Model Products

miRNA for KRT18 Gene

miRTarBase miRNAs that target KRT18

Inhibitory RNA Products

In Situ Assay Products

Flow Cytometry Products

No data available for Enzyme Numbers (IUBMB) , Gene Ontology (GO) - Molecular Function , Transcription Factor Targets and HOMER Transcription for KRT18 Gene

Localization for KRT18 Gene

Subcellular locations from UniProtKB/Swiss-Prot for KRT18 Gene

Cytoplasm, perinuclear region. Nucleus, nucleolus.

Subcellular locations from

COMPARTMENTS
Jensen Localization Image for KRT18 Gene COMPARTMENTS Subcellular localization image for KRT18 gene
Compartment Confidence
cytoskeleton 5
extracellular 5
nucleus 5
cytosol 4
mitochondrion 3
endoplasmic reticulum 1
plasma membrane 1

Gene Ontology (GO) - Cellular Components for KRT18 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005737 cytoplasm IDA 16424149
GO:0034451 centriolar satellite IDA 18000879
genes like me logo Genes that share ontologies with KRT18: view

Pathways & Interactions for KRT18 Gene

genes like me logo Genes that share pathways with KRT18: view

Pathways by source for KRT18 Gene

1 GeneGo (Thomson Reuters) pathway for KRT18 Gene
1 Qiagen pathway for KRT18 Gene

SIGNOR curated interactions for KRT18 Gene

Is activated by:
Other effect:

Gene Ontology (GO) - Biological Process for KRT18 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0033209 tumor necrosis factor-mediated signaling pathway IEA --
GO:0043000 Golgi to plasma membrane CFTR protein transport IDA 15529338
GO:0043066 negative regulation of apoptotic process IDA 11684708
genes like me logo Genes that share ontologies with KRT18: view

Drugs & Compounds for KRT18 Gene

(35) Drugs for KRT18 Gene - From: Novoseek

Name Status Disease Links Group Role Mechanism of Action Clinical Trials

(42) Additional Compounds for KRT18 Gene - From: Novoseek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
genes like me logo Genes that share compounds with KRT18: view

Transcripts for KRT18 Gene

Unigene Clusters for KRT18 Gene

Keratin 18:
Representative Sequences:

Alternative Splicing Database (ASD) splice patterns (SP) for KRT18 Gene

ExUns: 1 ^ 2a · 2b · 2c · 2d ^ 3a · 3b ^ 4 ^ 5 ^ 6a · 6b ^ 7a · 7b · 7c ^ 8a · 8b ^ 9a · 9b · 9c · 9d · 9e ^ 10a · 10b
SP1: -
SP2: - -
SP3: - - -
SP4: -
SP5: - -
SP6:
SP7:
SP8:
SP9:
SP10: -

Relevant External Links for KRT18 Gene

GeneLoc Exon Structure for
KRT18
ECgene alternative splicing isoforms for
KRT18

Expression for KRT18 Gene

mRNA expression in normal human tissues for KRT18 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

mRNA differential expression in normal tissues according to GTEx for KRT18 Gene

This gene is overexpressed in Liver (x6.8), Pancreas (x6.7), and Colon - Transverse (x5.0).

Protein differential expression in normal tissues from HIPED for KRT18 Gene

This gene is overexpressed in Liver, secretome (19.8) and Salivary gland (11.7).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MOPED, and MaxQB for KRT18 Gene



SOURCE GeneReport for Unigene cluster for KRT18 Gene Hs.406013

mRNA Expression by UniProt/SwissProt for KRT18 Gene

P05783-K1C18_HUMAN
Tissue specificity: Expressed in colon, placenta, liver and very weakly in exocervix. Increased expression observed in lymph nodes of breast carcinoma.
genes like me logo Genes that share expression patterns with KRT18: view

Protein tissue co-expression partners for KRT18 Gene

- Elite partner

Primer Products

In Situ Assay Products

Orthologs for KRT18 Gene

This gene was present in the common ancestor of chordates.

Orthologs for KRT18 Gene

Organism Taxonomy Gene Similarity Type Details
chimpanzee
(Pan troglodytes)
Mammalia KRT18 36
  • 100 (a)
OneToOne
KRT18 35
  • 99.92 (n)
  • 100 (a)
cow
(Bos Taurus)
Mammalia KRT18 35
  • 89.28 (n)
  • 88.81 (a)
KRT18 36
  • 89 (a)
OneToOne
dog
(Canis familiaris)
Mammalia KRT18 36
  • 56 (a)
OneToOne
KRT18 35
  • 89.59 (n)
  • 89.28 (a)
mouse
(Mus musculus)
Mammalia Krt18 16
Krt18 36
  • 88 (a)
OneToOne
Krt18 35
  • 85.35 (n)
  • 88.6 (a)
oppossum
(Monodelphis domestica)
Mammalia KRT18 36
  • 80 (a)
OneToOne
rat
(Rattus norvegicus)
Mammalia Krt18 35
  • 84.16 (n)
  • 86.46 (a)
chicken
(Gallus gallus)
Aves KRT18 36
  • 42 (a)
OneToOne
lizard
(Anolis carolinensis)
Reptilia KRT18 36
  • 64 (a)
OneToOne
tropical clawed frog
(Silurana tropicalis)
Amphibia krt18 35
  • 65.23 (n)
  • 62.05 (a)
rainbow trout
(Oncorhynchus mykiss)
Actinopterygii Omy.11413 35
zebrafish
(Danio rerio)
Actinopterygii krt18 35
zgc:77517 35
  • 59.26 (n)
  • 58.27 (a)
krt18 36
  • 52 (a)
OneToMany
KRT18 (2 of 3) 36
  • 52 (a)
OneToMany
KRT18 (3 of 3) 36
  • 42 (a)
OneToMany
Species with no ortholog for KRT18:
  • 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)
  • platypus (Ornithorhynchus anatinus)
  • 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 KRT18 Gene

ENSEMBL:
Gene Tree for KRT18 (if available)
TreeFam:
Gene Tree for KRT18 (if available)

Paralogs for KRT18 Gene

Paralogs for KRT18 Gene

genes like me logo Genes that share paralogs with KRT18: view

Variants for KRT18 Gene

Sequence variations from dbSNP and Humsavar for KRT18 Gene

SNP ID Clin Chr 12 pos Sequence Context AA Info Type
rs709170 -- 52,952,831(+) AAGTT(A/C/T)TGAGG reference, synonymous-codon, missense
rs11615022 -- 52,953,188(+) TTAGC(A/G)GAAAT downstream-variant-500B
rs11551635 -- 52,952,182(+) AGCAG(C/T)TCAAC reference, missense
rs35605760 -- 52,952,372(+) GTGCT(-/G)GGGAT intron-variant
rs17120921 -- 52,952,368(+) CACAC(A/G)TGCTG intron-variant

Structural Variations from Database of Genomic Variants (DGV) for KRT18 Gene

Variant ID Type Subtype PubMed ID
nsv832416 CNV Loss 17160897

Variation tolerance for KRT18 Gene

Residual Variation Intolerance Score: 41.9% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.28; 25.55% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for KRT18 Gene

HapMap Linkage Disequilibrium report
KRT18
Human Gene Mutation Database (HGMD)
KRT18

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for KRT18 Gene

Disorders for KRT18 Gene

MalaCards: The human disease database

(26) MalaCards diseases for KRT18 Gene - From: OMIM, Swiss-Prot, DISEASES, Novoseek, and GeneCards

Disorder Aliases PubMed IDs
cirrhosis, cryptogenic
  • cirrhosis, noncryptogenic
microglandular adenosis
  • adenosis - breast
warthin tumor
  • papillary cystadenoma lymphomatosum
schneiderian carcinoma
  • cylindrical cell carcinoma
ovarian brenner tumor
  • brenner tumor
- elite association - COSMIC cancer census association via MalaCards
Search KRT18 in MalaCards View complete list of genes associated with diseases

UniProtKB/Swiss-Prot

K1C18_HUMAN
  • Cirrhosis (CIRRH) [MIM:215600]: A liver disease characterized by severe panlobular liver-cell swelling with Mallory body formation, prominent pericellular fibrosis, and marked deposits of copper. Clinical features include abdomen swelling, jaundice and pulmonary hypertension. {ECO:0000269 PubMed:12724528, ECO:0000269 PubMed:9011570}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for KRT18

Genetic Association Database (GAD)
KRT18
Human Genome Epidemiology (HuGE) Navigator
KRT18
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
KRT18
genes like me logo Genes that share disorders with KRT18: view

No data available for Genatlas for KRT18 Gene

Publications for KRT18 Gene

  1. Phosphorylation of human keratin 18 serine 33 regulates binding to 14-3-3 proteins. (PMID: 9524113) Ku N.O. … Omary M.B. (EMBO J. 1998) 3 4 23 67
  2. Keratin 18 phosphorylation as a progression marker of chronic hepatitis B. (PMID: 20334631) Shi Y. … Zhou Y. (Virol. J. 2010) 3 23
  3. Cytokeratin 18 expression pattern correlates with renal cell carcinoma progression: relationship with Snail. (PMID: 20372788) Messai Y. … Chouaib S. (Int. J. Oncol. 2010) 3 23
  4. Insights into the mechanical properties of epithelial cells: the effects of shear stress on the assembly and remodeling of keratin intermediate filaments. (PMID: 19246484) Flitney E.W. … Goldman R.D. (FASEB J. 2009) 3 23
  5. Circulating cell death products predict clinical outcome of colorectal cancer patients. (PMID: 19302716) Koelink P.J. … Verspaget H.W. (BMC Cancer 2009) 3 23

Products for KRT18 Gene

Sources for KRT18 Gene

Back to Top

Content