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Aliases for KPTN Gene

Aliases for KPTN Gene

  • Kaptin (Actin Binding Protein) 2 3 5
  • Actin-Associated Protein 2E4 3 4
  • Kaptin (Actin-Binding Protein) 2
  • MRT41 3
  • 2E4 3

External Ids for KPTN Gene

Previous GeneCards Identifiers for KPTN Gene

  • GC19M048625
  • GC19M048369
  • GC19M052654
  • GC19M052670
  • GC19M052657
  • GC19M047978
  • GC19M044406

Summaries for KPTN Gene

Entrez Gene Summary for KPTN Gene

  • This gene encodes a filamentous-actin-associated protein, which is involved in actin dynamics and plays an important role in neuromorphogenesis. Mutations in this gene result in recessive mental retardation-41. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Apr 2014]

GeneCards Summary for KPTN Gene

KPTN (Kaptin (Actin Binding Protein)) is a Protein Coding gene. Diseases associated with KPTN include mental retardation, autosomal recessive 41 and macrocephaly-developmental delay syndrome. GO annotations related to this gene include actin binding.

UniProtKB/Swiss-Prot for KPTN Gene

  • Necessary for normal neuromorphogenesis. May be involved in actin dynamics. May play a role in producing the sensory apparatus in hair cells. May play a role in actin rearrangements that accompany platelet activation and stereocilia formation.

Gene Wiki entry for KPTN Gene

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

Genomics for KPTN Gene

Regulatory Elements for KPTN Gene

Genomic Location for KPTN Gene

47,475,141 bp from pter
47,486,791 bp from pter
11,651 bases
Minus strand

Genomic View for KPTN Gene

Genes around KPTN on UCSC Golden Path with GeneCards custom track

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

RefSeq DNA sequence for KPTN Gene

Proteins for KPTN Gene

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

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:
    • B3KN86
    • B4DQ76
    • Q96GT1

    Protein attributes for KPTN Gene

    436 amino acids
    Molecular mass:
    48080 Da
    Quaternary structure:
    • Associates with one end of F-actin filaments.
    • Sequence=AAD39358.1; Type=Frameshift; Positions=8, 14, 410, 419; Evidence={ECO:0000305};

    Alternative splice isoforms for KPTN Gene


neXtProt entry for KPTN Gene

Proteomics data for KPTN Gene at MOPED

Post-translational modifications for KPTN Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for KPTN Gene

No data available for DME Specific Peptides for KPTN Gene

Domains & Families for KPTN Gene

Protein Domains for KPTN Gene


Suggested Antigen Peptide Sequences for KPTN Gene

Graphical View of Domain Structure for InterPro Entry

genes like me logo Genes that share domains with KPTN: view

No data available for Gene Families and UniProtKB/Swiss-Prot for KPTN Gene

Function for KPTN Gene

Molecular function for KPTN Gene

UniProtKB/Swiss-Prot Function:
Necessary for normal neuromorphogenesis. May be involved in actin dynamics. May play a role in producing the sensory apparatus in hair cells. May play a role in actin rearrangements that accompany platelet activation and stereocilia formation.
genes like me logo Genes that share phenotypes with KPTN: view

Human Phenotype Ontology for KPTN Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Models for KPTN Gene

MGI Knock Outs for KPTN:
  • Kptn tm1a(EUCOMM)Wtsi

Animal Model Products

miRNA for KPTN Gene

miRTarBase miRNAs that target KPTN

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

Localization for KPTN Gene

Subcellular locations from UniProtKB/Swiss-Prot for KPTN Gene

Cytoplasm. Cytoplasm, perinuclear region. Cell projection, stereocilium. Cell projection, growth cone. Note=Perinuclear at the tips of stereocilium in the inner ear. Localized at sites of actin polymerization in motile fibroblasts and neuronal growth cones.

Subcellular locations from

Jensen Localization Image for KPTN Gene COMPARTMENTS Subcellular localization image for KPTN gene
Compartment Confidence
cytoskeleton 5
nucleus 5
cytosol 3
plasma membrane 2

Gene Ontology (GO) - Cellular Components for KPTN Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005815 microtubule organizing center TAS 1372044
GO:0015629 actin cytoskeleton IEA --
genes like me logo Genes that share ontologies with KPTN: view

Pathways & Interactions for KPTN Gene

SuperPathways for KPTN Gene

No Data Available

Gene Ontology (GO) - Biological Process for KPTN Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006928 movement of cell or subcellular component TAS 10099934
genes like me logo Genes that share ontologies with KPTN: view

No data available for Pathways by source and SIGNOR curated interactions for KPTN Gene

Drugs & Compounds for KPTN Gene

No Compound Related Data Available

Transcripts for KPTN Gene

Unigene Clusters for KPTN Gene

Kaptin (actin binding protein):
Representative Sequences:

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

ExUns: 1 ^ 2a · 2b · 2c · 2d ^ 3 ^ 4 ^ 5a · 5b ^ 6 ^ 7a · 7b ^ 8a · 8b ^ 9 ^ 10 ^ 11 ^ 12a · 12b ^ 13 ^ 14
SP1: - - -
SP2: - - - - -
SP3: - - - - -
SP5: - -

Relevant External Links for KPTN Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for KPTN Gene

mRNA expression in normal human tissues for KPTN Gene

Protein differential expression in normal tissues from HIPED for KPTN Gene

This gene is overexpressed in Ovary (49.5) and Islet of Langerhans (15.9).

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

SOURCE GeneReport for Unigene cluster for KPTN Gene Hs.25441

genes like me logo Genes that share expression patterns with KPTN: view

Protein tissue co-expression partners for KPTN Gene

Primer Products

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery , mRNA differential expression in normal tissues and mRNA Expression by UniProt/SwissProt for KPTN Gene

Orthologs for KPTN Gene

This gene was present in the common ancestor of chordates.

Orthologs for KPTN Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia KPTN 35
  • 89.14 (n)
  • 91.51 (a)
  • 92 (a)
(Canis familiaris)
Mammalia KPTN 35
  • 90.52 (n)
  • 93.12 (a)
  • 75 (a)
(Mus musculus)
Mammalia Kptn 35
  • 84.19 (n)
  • 88.84 (a)
Kptn 16
Kptn 36
  • 89 (a)
(Monodelphis domestica)
Mammalia KPTN 36
  • 76 (a)
(Ornithorhynchus anatinus)
Mammalia KPTN 36
  • 73 (a)
(Pan troglodytes)
Mammalia KPTN 36
  • 98 (a)
(Anolis carolinensis)
Reptilia KPTN 36
  • 63 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia kptn 35
  • 72.81 (n)
  • 78.72 (a)
Str.12230 35
African clawed frog
(Xenopus laevis)
Amphibia Xl.25661 35
(Danio rerio)
Actinopterygii kptn 35
  • 62.6 (n)
  • 63.61 (a)
kptn 36
  • 59 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 36
  • 30 (a)
Species with no ortholog for KPTN:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • 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)
  • chicken (Gallus gallus)
  • 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)
  • rat (Rattus norvegicus)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • 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 KPTN Gene

Gene Tree for KPTN (if available)
Gene Tree for KPTN (if available)

Paralogs for KPTN Gene

No data available for Paralogs for KPTN Gene

Variants for KPTN Gene

Sequence variations from dbSNP and Humsavar for KPTN Gene

SNP ID Clin Chr 19 pos Sequence Context AA Info Type
rs2272295 -- 47,475,414(-) TTAAG(C/T)ACCCA nc-transcript-variant, utr-variant-3-prime
rs2293424 -- 47,476,896(-) CTGCC(C/T)GGCAG nc-transcript-variant, reference, synonymous-codon
rs1046273 -- 47,475,482(-) CAGAG(A/G)AGACG nc-transcript-variant, reference, synonymous-codon
rs3745174 -- 47,477,747(+) AGCAC(A/G)CTGTA nc-transcript-variant, reference, synonymous-codon
rs10410138 -- 47,475,997(+) aacaa(A/C)caaaa intron-variant, downstream-variant-500B

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

Variant ID Type Subtype PubMed ID
dgv1107e1 CNV Complex 17122850
nsv428366 CNV Loss 18775914
nsv912202 CNV Loss 21882294

Variation tolerance for KPTN Gene

Residual Variation Intolerance Score: 42.4% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.98; 36.59% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for KPTN Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

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

Disorders for KPTN Gene

MalaCards: The human disease database

(3) MalaCards diseases for KPTN Gene - From: OMIM, ClinVar, GeneTests, Orphanet, and GeneCards

- elite association - COSMIC cancer census association via MalaCards
Search KPTN in MalaCards View complete list of genes associated with diseases


  • Mental retardation, autosomal recessive 41 (MRT41) [MIM:615637]: A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. MRT41 most consistent features are global developmental delay, macrocephaly with frontal bossing, high levels of anxiety, and some features suggestive of a pervasive developmental disorder. Less common features include fifth finger clinodactyly, recurrent pneumonia, and hepatosplenomegaly. {ECO:0000269 PubMed:24239382}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for KPTN

Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with KPTN: view

No data available for Genatlas for KPTN Gene

Publications for KPTN Gene

  1. 2E4 (kaptin): a novel actin-associated protein from human blood platelets found in lamellipodia and the tips of the stereocilia of the inner ear. (PMID: 10099934) Bearer E.L. … Abraham M.T. (Eur. J. Cell Biol. 1999) 2 3 4 23 67
  2. Actin dynamics in platelets. (PMID: 12019562) Bearer E.L. … Li Z. (Int. Rev. Cytol. 2002) 3 23
  3. 2E4/Kaptin (KPTN) - a candidate gene for the hearing loss loci, DFNA4. (PMID: 11409409) Bearer E.L. … Jackson C.L. (Ann. Hum. Genet. 2000) 3 23
  4. The BioPlex Network: A Systematic Exploration of the Human Interactome. (PMID: 26186194) Huttlin E.L. … Gygi S.P. (Cell 2015) 3
  5. Mutations in KPTN cause macrocephaly, neurodevelopmental delay, and seizures. (PMID: 24239382) Baple E.L. … Crosby A.H. (Am. J. Hum. Genet. 2014) 3

Products for KPTN Gene

Sources for KPTN Gene

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