Genes for RNA-binding proteins involved in neural-specific functions and diseases are downregulated in Rubinstein-Taybi iNeurons.
Abstract
Taking advantage of the fast-growing knowledge of RNA-binding proteins (RBPs) we review the signature of downregulated genes for RBPs in the transcriptome of induced pluripotent stem cell neurons (iNeurons) modelling the neurodevelopmental Rubinstein Taybi Syndrome (RSTS) caused by mutations in the genes encoding CBP/p300 acetyltransferases. We discuss top and functionally connected downregulated genes sorted to "RNA processing" and "Ribonucleoprotein complex biogenesis" Gene Ontology clusters. The first set of downregulated RBPs includes members of hnRNHP (A1, A2B1, D, G, H2-H1, MAGOHB, PAPBC), core subunits of U small nuclear ribonucleoproteins and Serine-Arginine splicing regulators families, acting in precursor messenger RNA alternative splicing and processing. Consistent with literature findings on reduced transcript levels of serine/arginine repetitive matrix 4 (SRRM4) protein, the main regulator of the neural-specific microexons splicing program upon depletion of Ep300 and Crebbp in mouse neurons, RSTS iNeurons show downregulated genes for proteins impacting this network. We link downregulated genes to neurological disorders including the new HNRNPH1-related intellectual disability syndrome with clinical overlap to RSTS....Continue Reading
References
Variants in HNRNPH2 on the X Chromosome Are Associated with a Neurodevelopmental Disorder in Females
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