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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
  • Kaptin 3
  • 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 Pervasive Developmental Disorder. 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 CIViC summary , Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for KPTN Gene

Genomics for KPTN Gene

Regulatory Elements for KPTN Gene

Enhancers for KPTN Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
GH19G047728 1.3 ENCODE dbSUPER 8.1 -242.9 -242868 3.1 HDGF PKNOX1 FOXA2 ARNT ARID4B SIN3A ZNF2 ZBTB7B FOS SP3 SELENOW LIG1 NOP53 KPTN PIR33748 GC19M047700
GH19G047506 1.3 Ensembl ENCODE dbSUPER 7.3 -20.5 -20508 2.3 ATF1 RAD21 ZNF155 ZEB1 FOS EGR2 YY2 REST ZNF398 TSHZ1 BICRA ZC3H4 GRWD1 PPP5D1 C19orf68 ZNF541 SLC8A2 NOP53-AS1 KPTN TMEM143
GH19G047607 1.6 Ensembl ENCODE dbSUPER 5.8 -124.3 -124296 6.9 HDGF PKNOX1 CREB3L1 AGO1 ARID4B SIN3A DMAP1 ZNF2 ZBTB7B YY1 ZNF541 PRKD2 LIG1 KPTN ENSG00000277383 BICRA-AS1
GH19G047486 1.2 Ensembl ENCODE dbSUPER 7.7 -0.8 -760 1.8 ZSCAN18 MAX NFXL1 ZFHX2 ZNF366 POLR2A ZNF600 EGR2 ZNF263 MAZ KPTN ENSG00000279861
- Elite enhancer and/or Elite enhancer-gene association Download GeneHancer data dump

Enhancers around KPTN on UCSC Golden Path with GeneCards custom track

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

Post-translational modifications for KPTN Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

No data available for DME Specific Peptides for KPTN Gene

Domains & Families for KPTN Gene

Gene 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 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.

Gene Ontology (GO) - Molecular Function for KPTN Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0051015 actin filament binding IDA 10099934
genes like me logo Genes that share ontologies with KPTN: view
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

Inhibitory RNA Products

Clone Products

  • Addgene plasmids for KPTN

No data available for Enzyme Numbers (IUBMB) , 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

Extracellular space Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi Apparatus Nucleus Mitochondrion 0 1 2 3 4 5 Confidence
COMPARTMENTS Subcellular localization image for KPTN gene
Compartment Confidence
cytoskeleton 5
nucleus 3
cytosol 3
plasma membrane 2

Gene Ontology (GO) - Cellular Components for KPTN Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005634 nucleus TAS --
GO:0005737 cytoplasm IEA --
GO:0005815 microtubule organizing center TAS --
GO:0015629 actin cytoskeleton IEA --
GO:0030027 lamellipodium IDA 10099934
genes like me logo Genes that share ontologies with KPTN: view

Pathways & Interactions 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 --
GO:0007015 actin filament organization IEA --
GO:0007605 sensory perception of sound NAS --
GO:0034198 cellular response to amino acid starvation IMP 28199306
GO:0042149 cellular response to glucose starvation IMP 28199306
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:

Inhibitory RNA Products

Clone Products

  • Addgene plasmids for KPTN

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 from GTEx, Illumina, BioGPS, and CGAP SAGE 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, MaxQB, and MOPED for KPTN Gene

Protein tissue co-expression partners for KPTN Gene

NURSA nuclear receptor signaling pathways regulating expression of KPTN Gene:


SOURCE GeneReport for Unigene cluster for KPTN Gene:


Evidence on tissue expression from TISSUES for KPTN Gene

  • Muscle(4.2)
  • Nervous system(2.3)

Phenotype-based relationships between genes and organs from Gene ORGANizer for KPTN Gene

Germ Layers:
  • ectoderm
  • mesoderm
  • integumentary
  • nervous
  • skeletal muscle
  • skeleton
Head and neck:
  • brain
  • eye
  • eyelid
  • face
  • forehead
  • head
  • jaw
  • mandible
  • maxilla
  • mouth
  • nose
  • skull
  • tooth
  • digit
  • finger
  • hand
  • upper limb
  • skin
genes like me logo Genes that share expression patterns with KPTN: view

Primer 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
(Pan troglodytes)
Mammalia KPTN 35
  • 98 (a)
(Canis familiaris)
Mammalia KPTN 34 35
  • 90.52 (n)
(Bos Taurus)
Mammalia KPTN 34 35
  • 89.14 (n)
(Mus musculus)
Mammalia Kptn 34 16 35
  • 84.19 (n)
(Monodelphis domestica)
Mammalia KPTN 35
  • 76 (a)
(Ornithorhynchus anatinus)
Mammalia KPTN 35
  • 73 (a)
(Anolis carolinensis)
Reptilia KPTN 35
  • 63 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia kptn 34
  • 72.81 (n)
Str.12230 34
African clawed frog
(Xenopus laevis)
Amphibia Xl.25661 34
(Danio rerio)
Actinopterygii kptn 34 35
  • 62.6 (n)
sea squirt
(Ciona savignyi)
Ascidiacea -- 35
  • 30 (a)
Species where no ortholog for KPTN was found in the sources mined by GeneCards:
  • 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
rs374298314 Pathogenic 47,479,874(+) CGGCC(A/G/T)AGAGG nc-transcript-variant, reference, stop-gained
rs587777148 Pathogenic 47,479,936(+) GCAGA(-/ACCGACCACATCTGCAGA)ACCTC nc-transcript-variant, cds-indel
rs766372684 Pathogenic 47,480,760(+) CTACC(-/TA)TACTG intron-variant, nc-transcript-variant, downstream-variant-500B, reference, frameshift-variant
rs142867197 Uncertain significance 47,483,973(+) CTGGC(C/T)GGATT nc-transcript-variant, upstream-variant-2KB, reference, missense
rs1000121354 -- 47,474,762(+) GCCCT(C/T)TCTAC downstream-variant-500B

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

Variant ID Type Subtype PubMed ID
esv2758765 CNV loss 17122850
nsv1056887 CNV gain 25217958
nsv1143921 CNV deletion 24896259
nsv428366 CNV loss 18775914
nsv579888 CNV gain 21841781

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

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

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

Disorders for KPTN Gene

MalaCards: The human disease database

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

Disorder Aliases PubMed IDs
mental retardation, autosomal recessive 41
  • macrocephaly-developmental delay syndrome
pervasive developmental disorder
  • pervasive development disorder
- 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 22 64
  2. 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 4 22 64
  3. Mutations in KPTN cause macrocephaly, neurodevelopmental delay, and seizures. (PMID: 24239382) Baple E.L. … Crosby A.H. (Am. J. Hum. Genet. 2014) 3 4 64
  4. Complete sequencing and characterization of 21,243 full-length human cDNAs. (PMID: 14702039) Ota T. … Sugano S. (Nat. Genet. 2004) 3 4 64
  5. The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). (PMID: 15489334) Gerhard D.S. … Malek J. (Genome Res. 2004) 3 4 64

Products for KPTN Gene

  • Addgene plasmids for KPTN

Sources for KPTN Gene

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