Kaptin (actin binding protein)

KPTN
Identifiers
Aliases	KPTN, 2E4, MRT41, kaptin (actin binding protein), kaptin, actin binding protein, KICS4
External IDs	OMIM: 615620; MGI: 1890380; HomoloGene: 5127; GeneCards: KPTN; OMA:KPTN - orthologs
Gene location (Human)
Chr.	Chromosome 19 (human)
End	47,484,265 bp
Gene location (Mouse)
Chr.	Chromosome 7 (mouse)
End	15,861,441 bp
RNA expression pattern
	Top expressed in
	right hemisphere of cerebellum; ; gonad; ; parotid gland; ; endothelial cell; ; pituitary gland; ; anterior pituitary; ; apex of heart; ; testicle; ; ganglionic eminence; ; right frontal lobe;
	Top expressed in
	interventricular septum; ; spermatocyte; ; visual cortex; ; superior frontal gyrus; ; primary visual cortex; ; spermatid; ; neural layer of retina; ; granulocyte; ; dentate gyrus of hippocampal formation granule cell; ; left lobe of liver;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	actin binding; actin filament binding;
Cellular component	cell projection; actin cytoskeleton; filamentous actin; postsynaptic actin cytoskeleton; stereocilium; KICSTOR complex; lysosome; lysosomal membrane; membrane; lamellipodium;
Biological process	actin filament organization; cellular response to glucose starvation; protein localization to lysosome; negative regulation of TORC1 signaling; cellular response to amino acid starvation;
	Sources:Amigo / QuickGO
Orthologs
	11133
	70394
	ENSG00000118162
	ENSMUSG00000006021
	Q9Y664
	Q8VCX6
	NM_001291296; NM_007059
	NM_133727
	NP_001278225; NP_008990
	NP_598488
	Wikidata
View/Edit Human	View/Edit Mouse

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

Clinical[edit]

Mutations in this gene have been associated with a syndrome of acrocephaly, muscular hypotonia, global development delay, dyspraxia and hand-mouth synkinesia.^[7]

References[edit]

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000118162 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000006021 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ 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.
^ "Entrez Gene: KPTN kaptin (actin binding protein)".
^ 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[edit]

Bearer EL, Prakash JM, Li Z (2002). "Actin dynamics in platelets". International Review of Cytology. 217: 137–82. doi:10.1016/S0074-7696(02)17014-8. ISBN 9780123646217. PMC 3376087. PMID 12019562.
Bearer EL (March 1992). "An actin-associated protein present in the microtubule organizing center and the growth cones of PC-12 cells". The Journal of Neuroscience. 12 (3): 750–61. doi:10.1523/jneurosci.12-03-00750.1992. PMC 3376081. PMID 1372044.
Maruyama K, Sugano S (January 1994). "Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides". Gene. 138 (1–2): 171–4. doi:10.1016/0378-1119(94)90802-8. PMID 8125298.
Suzuki Y, Yoshitomo-Nakagawa K, Maruyama K, Suyama A, Sugano S (October 1997). "Construction and characterization of a full length-enriched and a 5'-end-enriched cDNA library". Gene. 200 (1–2): 149–56. doi:10.1016/S0378-1119(97)00411-3. PMID 9373149.
Bearer EL, Chen AF, Chen AH, Li Z, Mark HF, Smith RJ, Jackson CL (May 2000). "2E4/Kaptin (KPTN)--a candidate gene for the hearing loss locus, DFNA4". Annals of Human Genetics. 64 (Pt 3): 189–96. doi:10.1046/j.1469-1809.2000.6430189.x. PMC 3376086. PMID 11409409.
Kimura K, Wakamatsu A, Suzuki Y, Ota T, Nishikawa T, Yamashita R, et al. (January 2006). "Diversification of transcriptional modulation: large-scale identification and characterization of putative alternative promoters of human genes". Genome Research. 16 (1): 55–65. doi:10.1101/gr.4039406. PMC 1356129. PMID 16344560.
Ewing RM, Chu P, Elisma F, Li H, Taylor P, Climie S, et al. (2007). "Large-scale mapping of human protein-protein interactions by mass spectrometry". Molecular Systems Biology. 3 (1): 89. doi:10.1038/msb4100134. PMC 1847948. PMID 17353931.

This article on a gene on human chromosome 19 is a stub. You can help Wikipedia by expanding it.

[refGRCh38Ensembl-1] GRCh38: Ensembl release 89: ENSG00000118162 – Ensembl, May 2017

[refGRCm38Ensembl-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.

[pmid10099934-5] 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.

[entrez-6] "Entrez Gene: KPTN kaptin (actin binding protein)".

[Lucena2020-7] 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.

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