ArticleHuman molecular genetics2022
Suleiman-El-Hattab syndrome: a histone modification disorder caused by TASP1 deficiency.
Article in Human molecular genetics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 9 citations in OpenAlex.
- TASP1-Related Suleiman-El-Hattab Syndrome: The First Genetically Confirmed Case in Iran Accompanied by a Comprehensive Literature Review.Journal of molecular neuroscience : MN · 2026Review
- Molecular and clinical aspects of histone-related disorders.Human genomics · 2025Review
- Multi-omics analysis of a case of congenital microtia reveals aldob and oxidative stress associated with microtia etiology.Orphanet journal of rare diseases · 2024Article
- Role of HOXA1-4 in the development of genetic and malignant diseases.Biomarker research · 2024Review
- Novel variants and phenotypic heterogeneity in a cohort of 11 Chinese children with Wiedemann-Steiner syndrome.Frontiers in genetics · 2023Article
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Authors and funding
21 authors at 12 institutions in 5 countries.
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Abstract
backgroundTASP1 encodes an endopeptidase activating histone methyltransferases of the KMT2 family. Homozygous loss-of-function variants in TASP1 have recently been associated with Suleiman-El-Hattab syndrome. We report six individuals with Suleiman-El-Hattab syndrome and provide functional characterization of this novel histone modification disorder in a multi-omics approach.
methodsChromosomal microarray/exome sequencing in all individuals. Western blotting from fibroblasts in two individuals. RNA sequencing and proteomics from fibroblasts in one individual. Methylome analysis from blood in two individuals. Knock-out of tasp1 orthologue in zebrafish and phenotyping.
resultsAll individuals had biallelic TASP1 loss-of-function variants and a phenotype including developmental delay, multiple congenital anomalies (including cardiovascular and posterior fossa malformations), a distinct facial appearance and happy demeanor. Western blot revealed absence of TASP1. RNA sequencing/proteomics showed HOX gene downregulation (HOXA4, HOXA7, HOXA1 and HOXB2) and dysregulation of transcription factor TFIIA. A distinct methylation profile intermediate between control and Kabuki syndrome (KMT2D) profiles could be produced. Zebrafish tasp1 knock-out revealed smaller head size and abnormal cranial cartilage formation in tasp1 crispants.
conclusionThis work further delineates Suleiman-El-Hattab syndrome, a recognizable neurodevelopmental syndrome. Possible downstream mechanisms of TASP1 deficiency include perturbed HOX gene expression and dysregulated TFIIA complex. Methylation pattern suggests that Suleiman-El-Hattab syndrome can be categorized into the group of histone modification disorders including Wiedemann-Steiner and Kabuki syndrome.
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