Rubinstein-Taybi syndrome in a Saudi boy with distinct features
Por um escritor misterioso
Last updated 18 abril 2025

Background Rubinstein-Taybi syndrome (RSTS) Type 1 (OMIM 180849) is characterized by three main features: intellectual disability; broad and frequently angulated thumbs and halluces; and characteristic facial dysmorphism. Case presentation We report on a Saudi boy with RSTS Type 1 and the following distinct features: a midline notch of the upper lip, a bifid tip of the tongue, a midline groove of the lower lip, plump fingers with broad / flat fingertips, and brachydactyly. The child was found to be heterozygous in the CREBBP gene for a sequence variant designated c.4963del, which is predicted to result in premature protein termination p.Leu1655Cysfs*89. The child and his father were also found to be heterozygous in the EP300 gene for a sequence variant designated c.586A > G, which is predicted to result in the amino-acid substitution p.Ile196Val. Conclusion Our report expands the clinical spectrum of RSTS to include several distinct facial and limb features. The variant of the CREBBP gene is known to be causative of RSTS Type 1. The variant in the EP300 gene is benign since the father carried the same variant and exhibited no abnormalities. However, functional studies are required to investigate if this benign EP300 variant influences the phenotype in the presence of disease-causing CREBBP gene mutations.

Frontiers Genetic Diagnosis of Rubinstein–Taybi Syndrome With Multiplex Ligation-Dependent Probe Amplification (MLPA) and Whole-Exome Sequencing (WES): Case Series With a Novel CREBBP Variant

Frontiers Behavioral and neuropsychiatric challenges across the lifespan in individuals with Rubinstein-Taybi syndrome

Patient 1 showing a mild RTS variant (incomplete RTS). (A, B) Note

Facial dysmorphism, skeletal anomalies, congenital glucoma, dysplastic nails: Mild Rubinstein-Taybi Syndrome - ScienceDirect
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Silas : Rubinstein-Taybi Syndrome » SWEET NECTAR SOCIETY

PDF) Rubinstein-Taybi syndrome medical guidelines

Facial dysmorphism, skeletal anomalies, congenital glucoma, dysplastic nails: Mild Rubinstein-Taybi Syndrome - ScienceDirect

Rubinstein-Taybi Syndrome: A case report

4 Newborn with Rubinstein-Taybi syndrome showing microcephaly, frontal

Rubinstein–Taybi syndrome European Journal of Human Genetics
The - The Rubinstein-Taybi Syndrome Children's Foundation

Facial features of Rubinstein-Taybi syndrome
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