Dyskerin

H/ACA ribonucleoprotein complex subunit 4 is a protein that in humans is encoded by the gene DKC1.[5][6][7]

DKC1
Identifiers
AliasesDKC1, CBF5, DKC, DKCX, NAP57, NOLA4, XAP101, Dyskerin, dyskerin pseudouridine synthase 1
External IDsOMIM: 300126 MGI: 1861727 HomoloGene: 1045 GeneCards: DKC1
Gene location (Human)
Chr.X chromosome (human)[1]
BandXq28Start154,762,742 bp[1]
End154,777,689 bp[1]
RNA expression pattern




More reference expression data
Orthologs
SpeciesHumanMouse
Entrez

1736

245474

Ensembl

ENSG00000130826

ENSMUSG00000031403

UniProt

O60832

Q9ESX5

RefSeq (mRNA)

NM_001142463
NM_001288747
NM_001363

NM_001030307
NM_001359411
NM_001359412
NM_001359413

RefSeq (protein)

NP_001135935
NP_001275676
NP_001354

NP_001025478
NP_001346340
NP_001346341
NP_001346342

Location (UCSC)Chr X: 154.76 – 154.78 MbChr X: 75.1 – 75.11 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

This gene is a member of the H/ACA snoRNPs (small nucleolar ribonucleoproteins) gene family. snoRNPs are involved in various aspects of rRNA processing and modification and have been classified into two families: C/D and H/ACA. The H/ACA snoRNPs also include the NOLA1, 2 and 3 proteins. The protein encoded by this gene and the three NOLA proteins localize to the dense fibrillar components of nucleoli and to coiled (Cajal) bodies in the nucleus. Both 18S rRNA production and rRNA pseudouridylation are impaired if any one of the four proteins is depleted. The protein encoded by this gene is related to the Saccharomyces cerevisiae Cbf5p and Drosophila melanogaster Nop60B proteins. The gene lies in a tail-to-tail orientation with the palmitoylated erythrocyte membrane protein (MPP1) gene and is transcribed in a telomere to centromere direction. Both nucleotide substitutions and single trinucleotide repeat polymorphisms have been found in this gene. Mutations in this gene cause X-linked dyskeratosis congenita.[7]

Clinical significance

Mutations in DKC1 are associated to Hoyeraal-Hreidarsson syndrome.[8]

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References

  1. GRCh38: Ensembl release 89: ENSG00000130826 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000031403 - 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. Heiss NS, Knight SW, Vulliamy TJ, Klauck SM, Wiemann S, Mason PJ, Poustka A, Dokal I (May 1998). "X-linked dyskeratosis congenita is caused by mutations in a highly conserved gene with putative nucleolar functions". Nat Genet. 19 (1): 32–8. doi:10.1038/ng0598-32. PMID 9590285.
  6. Hassock S, Vetrie D, Giannelli F (Mar 1999). "Mapping and characterization of the X-linked dyskeratosis congenita (DKC) gene". Genomics. 55 (1): 21–7. doi:10.1006/geno.1998.5600. PMID 9888995.
  7. "Entrez Gene: DKC1 dyskeratosis congenita 1, dyskerin".
  8. Lim, B. C.; Yoo, S. K.; Lee, S; Shin, J. Y.; Hwang, H; Chae, J. H.; Hwang, Y. S.; Seo, J. S.; Kim, J. I.; Kim, K. J. (2014). "Hoyeraal-Hreidarsson syndrome with a DKC1 mutation identified by whole-exome sequencing". Gene. 546 (2): 425–9. doi:10.1016/j.gene.2014.06.011. PMID 24914498.

Further reading


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