HDAC8 histone deacetylase 8

Gene info



Previous symbol


External ID

HGNC: 13315
Entrez Gene: 55869
Ensembl: ENSG00000147099
UCSC: uc004eau.3
OMIM: 300269
UniProtKB: Q9BY41

Disease info

CHD Phenotype

  • Atrial septal defect
  • Ventricular septal defect

Extra Cardiac Phenotype

Facial dysmorphism, neurodevelopmental delay, microcephaly, Hearing loss, failure to thrive, Hirsutism, Truncal obesity, Gynaecomastia, Hypogonadism, digit deformities, GI anomalies

Incomplete penetrance


Variable expressivity


Animal model

Mouse study

MGI: No cardiovascular defect in knockout mice


Variant info


Selected variant

The Clinvar variants presented in the below IGV track were selected based on the following criteria.

  1. Variant types are single nucleotide variant or Indel
  2. Clinical significance for the variant was assessed to be Pathogenic or Likely Pathogenic
  3. ClinVar review status for the variant is criteria provided

Download annotation file for HDAC8: BED file

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Selected References

  1. Deardorff, M. A., Bando, M., Nakato, R., Watrin, E., Itoh, T., Minamino, M., Saitoh, K., Komata, M., Katou, Y., Clark, D., Cole, K. E., De Baere, E., Decroos, C., Di Donato, N., Ernst, S., Francey, L. J., Gyftodimou, Y., Hirashima, K., Hullings, M., … Shirahige, K. (2012). HDAC8 mutations in Cornelia de Lange syndrome affect the cohesin acetylation cycle. Nature, 489(7415), 313–317. https://doi.org/10.1038/nature11316 DOI:10.1038/nature11316 PMID:22885700
  2. Harakalova, M., van den Boogaard, M.-J., Sinke, R., van Lieshout, S., van Tuil, M. C., Duran, K., Renkens, I., Terhal, P. A., de Kovel, C., Nijman, I. J., van Haelst, M., Knoers, N. V. A. M., van Haaften, G., Kloosterman, W., Hennekam, R. C. M., Cuppen, E., & Ploos van Amstel, H. K. (2012). X-exome sequencing identifies aHDAC8variant in a large pedigree with X-linked intellectual disability, truncal obesity, gynaecomastia, hypogonadism and unusual face. Journal of Medical Genetics, 49(8), 539–543. https://doi.org/10.1136/jmedgenet-2012-100921 DOI:10.1136/jmedgenet-2012-100921 PMID:22889856
  3. Saikusa, T., Hara, M., Iwama, K., Yuge, K., Ohba, C., Okada, J., Hisano, T., Yamashita, Y., Okamoto, N., Saitsu, H., Matsumoto, N., & Matsuishi, T. (2018). De novo HDAC8 mutation causes Rett-related disorder with distinctive facial features and multiple congenital anomalies. Brain and Development, 40(5), 406–409. https://doi.org/10.1016/j.braindev.2017.12.013 DOI:10.1016/j.braindev.2017.12.013 PMID:29519750
  4. Kaiser, F. J., Ansari, M., Braunholz, D., Concepción Gil-Rodríguez, M., Decroos, C., Wilde, J. J., Fincher, C. T., Kaur, M., Bando, M., Amor, D. J., Atwal, P. S., Bahlo, M., Bowman, C. M., Bradley, J. J., Brunner, H. G., Clark, D., Del Campo, M., Di Donato, N., … Diakumis, P. (2014). Loss-of-function HDAC8 mutations cause a phenotypic spectrum of Cornelia de Lange syndrome-like features, ocular hypertelorism, large fontanelle and X-linked inheritance. Human Molecular Genetics, 23(11), 2888–2900. https://doi.org/10.1093/hmg/ddu002 DOI:10.1093/hmg/ddu002 PMID:24403048