Kaptin (actin binding protein)

Kaptin is a protein that in humans is encoded by the KPTN gene.[5][6]

KPTN
Identifiers
AliasesKPTN, 2E4, MRT41, kaptin (actin binding protein), kaptin, actin binding protein, KICS4
External IDsOMIM: 615620 MGI: 1890380 HomoloGene: 5127 GeneCards: KPTN
Orthologs
SpeciesHumanMouse
Entrez

11133

70394

Ensembl

ENSG00000118162

ENSMUSG00000006021

UniProt

Q9Y664

Q8VCX6

RefSeq (mRNA)

NM_001291296
NM_007059

NM_133727

RefSeq (protein)

NP_001278225
NP_008990

NP_598488

Location (UCSC)Chr 19: 47.48 – 47.48 MbChr 7: 15.85 – 15.86 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Model organisms

Model organisms have been used in the study of KPTN function. A conditional knockout mouse line, called Kptntm1a(EUCOMM)Wtsi[16][17] was generated as part of the International Knockout Mouse Consortium program — a high-throughput mutagenesis project to generate and distribute animal models of disease to interested scientists.[18][19][20]

Male and female animals underwent a standardized phenotypic screen to determine the effects of deletion.[14][21] Twenty two tests were carried out on mutant mice and six significant abnormalities were observed.[14] Homozygous mutant mice had hyperalbuminemia, decreased mature B cell numbers and increased susceptibility to bacterial infection. Female mice also had increased body weight, body fat and impaired glucose tolerance.[14]

Clinical

Mutations in this gene have been associated with a syndrome of acrocephaly, muscular hypotonia, global development delay, dyspraxia and hand-mouth synkinesia.[22]

References

  1. GRCh38: Ensembl release 89: ENSG00000118162 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000006021 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Bearer EL, Abraham MT (February 1999). "2E4 (kaptin): a novel actin-associated protein from human blood platelets found in lamellipodia and the tips of the stereocilia of the inner ear". European Journal of Cell Biology. 78 (2): 117–26. doi:10.1016/s0171-9335(99)80013-2. PMC 3376092. PMID 10099934.
  6. "Entrez Gene: KPTN kaptin (actin binding protein)".
  7. "Body weight data for Kptn". Wellcome Trust Sanger Institute.
  8. "Glucose tolerance test data for Kptn". Wellcome Trust Sanger Institute.
  9. "DEXA data for Kptn". Wellcome Trust Sanger Institute.
  10. "Clinical chemistry data for Kptn". Wellcome Trust Sanger Institute.
  11. "Peripheral blood lymphocytes data for Kptn". Wellcome Trust Sanger Institute.
  12. "Salmonella infection data for Kptn". Wellcome Trust Sanger Institute.
  13. "Citrobacter infection data for Kptn". Wellcome Trust Sanger Institute.
  14. Gerdin AK (2010). "The Sanger Mouse Genetics Programme: High throughput characterisation of knockout mice". Acta Ophthalmologica. 88: 925–7. doi:10.1111/j.1755-3768.2010.4142.x. S2CID 85911512.
  15. Mouse Resources Portal, Wellcome Trust Sanger Institute.
  16. "International Knockout Mouse Consortium".
  17. "Mouse Genome Informatics".
  18. Skarnes WC, Rosen B, West AP, Koutsourakis M, Bushell W, Iyer V, et al. (June 2011). "A conditional knockout resource for the genome-wide study of mouse gene function". Nature. 474 (7351): 337–42. doi:10.1038/nature10163. PMC 3572410. PMID 21677750.
  19. Dolgin E (June 2011). "Mouse library set to be knockout". Nature. 474 (7351): 262–3. doi:10.1038/474262a. PMID 21677718.
  20. Collins FS, Rossant J, Wurst W (January 2007). "A mouse for all reasons". Cell. 128 (1): 9–13. doi:10.1016/j.cell.2006.12.018. PMID 17218247. S2CID 18872015.
  21. van der Weyden L, White JK, Adams DJ, Logan DW (June 2011). "The mouse genetics toolkit: revealing function and mechanism". Genome Biology. 12 (6): 224. doi:10.1186/gb-2011-12-6-224. PMC 3218837. PMID 21722353.
  22. Lucena PH, Armani-Franceschi G, Bispo-Torres AC, Bandeira ID, Lucena MF, Maldonado I, et al. (2020). "KPTN gene homozygous variant-related syndrome in the northeast of Brazil: A case report". Am J Med Genet A. 182 (4): 762–767. doi:10.1002/ajmg.a.61492. PMID 31999056. S2CID 210945773.

Further reading

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