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HOXC13

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HOXC13
Identifiers
AliasesHOXC13, ECTD9, HOX3, HOX3G, homeobox C13
External IDsOMIM: 142976; MGI: 99560; HomoloGene: 7770; GeneCards: HOXC13; OMA:HOXC13 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_017410

NM_010464

RefSeq (protein)

NP_059106

NP_034594

Location (UCSC)Chr 12: 53.94 – 53.95 MbChr 15: 102.83 – 102.84 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Homeobox protein Hox-C13 is a protein that in humans is encoded by the HOXC13 gene.[5][6][7]

Structure

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This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, which are located on different chromosomes and consist of 9 to 11 genes arranged in tandem. This gene is one of several homeobox HOXC genes located in a cluster on chromosome 12.[7]

HOXC13 is positioned toward the 5' end of the HOXC cluster.

Function

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The product of this gene may play a role in the development of hair, nail, and filiform papilla.[7]

HOX gene expression follows a principle called collinearity]: genes at the 3' end are expressed earlier and more anteriorly, while those at the 5' end are expressed in more posterior or distal structures.[8] As a result, the HOXC13 gene is primarily involved in the development and differentiation of ectodermal structures rather than early axial patterning.

Clinical significance

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Mutations in HOXC13 can lead to disruptions in the transcription factors the gene is associated with, particularly being linked to Pure hair-nail type ectodermal dysplasia.[9] Research suggests that disruptions in mRNA decay are the root cause of a failure to properly develop hair follicles, nails, sebaceous glands, and other ectodermal structures. These effects are a result of a nonsense mutation in HOXC13 that codes for a protein without a C-terminal homeodomain and undergoes total loss-of-function. The mutation has no effects on any other organ systems and is limited to ectodermal structures.[9]

See also

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References

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  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000123364Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000001655Ensembl, 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. ^ McAlpine PJ, Shows TB (July 1990). "Nomenclature for human homeobox genes". Genomics. 7 (3): 460. doi:10.1016/0888-7543(90)90186-X. PMID 1973146.
  6. ^ Scott MP (November 1992). "Vertebrate homeobox gene nomenclature". Cell. 71 (4): 551–553. doi:10.1016/0092-8674(92)90588-4. PMID 1358459. S2CID 13370372.
  7. ^ a b c "Entrez Gene: HOXC13 homeobox C13".
  8. ^ Gaunt SJ (2015). "The significance of Hox gene collinearity". The International Journal of Developmental Biology. 59 (4–6): 159–170. doi:10.1387/ijdb.150223sg. PMID 26260684.
  9. ^ a b Lin Z, Chen Q, Shi L, Lee M, Giehl KA, Tang Z, et al. (November 2012). "Loss-of-function mutations in HOXC13 cause pure hair and nail ectodermal dysplasia". American Journal of Human Genetics. 91 (5): 906–911. doi:10.1016/j.ajhg.2012.08.029. PMC 3487122. PMID 23063621.

Further reading

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This article incorporates text from the United States National Library of Medicine, which is in the public domain.