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A foundational atlas of autism protein interactions reveals molecular convergence [CUT&Tag]

ABSTRACT: A foundational atlas of autism protein interactions reveals molecular convergence [CUT&Tag]

PROVIDER: PRJNA1202141 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR31811530_1.fastq.gz	Fastqsanger.gz
	SRR31811530_2.fastq.gz	Fastqsanger.gz
	SRR31811531_1.fastq.gz	Fastqsanger.gz
	SRR31811531_2.fastq.gz	Fastqsanger.gz
	SRR31811532_1.fastq.gz	Fastqsanger.gz

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A foundational atlas of autism protein interactions reveals molecular convergence [scRNA-seq]

Project description:A foundational atlas of autism protein interactions reveals molecular convergence [scRNA-seq]

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A foundational atlas of autism protein interactions reveals molecular convergence [CUT&Tag]

Project description:Translating high-confidence (hc) autism spectrum disorder (ASD) genes into viable treatment targets remains elusive. We constructed a foundational protein-protein interaction (PPI) network in HEK293T cells involving 100 hcASD risk genes, revealing over 1,800 PPIs (87% novel). Interactors, expressed in the human brain and enriched for ASD but not schizophrenia genetic risk, converged on protein complexes involved in neurogenesis, tubulin biology, transcriptional regulation, and chromatin modification. A PPI map of 54 patient-derived missense variants identified differential physical interactions, and we leveraged AlphaFold-Multimer predictions to prioritize direct PPIs and specific variants for interrogation in Xenopus tropicalis and human forebrain organoids. A mutation in the transcription factor FOXP1 led to reconfiguration of DNA binding sites and altered development of deep cortical layer neurons in forebrain organoids. This work offers new insights into molecular mechanisms underlying ASD and describes a powerful platform to develop and test therapeutic strategies for many genetically-defined conditions.

2024-12-25 | GSE285273 | GEO

A foundational atlas of autism protein interactions reveals molecular convergence [scRNA-seq]

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High-throughput Functional Analysis of Autism Genes in Zebrafish Identifies Convergence in Dopaminergic and Neuroimmune Pathways

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Project description:Neuronal diversity and convergence in a visual system developmental atlas (scRNA-seq)

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An Atlas of Bovine Gene Expression Reveals Novel Distinctive Tissue Characteristics and Evidence for Improving Genome Annotation

Project description:Background: A comprehensive transcriptome survey, or "gene atlas", provides information essential for a complete understanding of the genomic biology of an organism. We present an atlas of RNA abundance for 92 adult, juvenile and fetal cattle tissues and 3 cattle cell lines. Results: The Bovine Gene Atlas was generated from 7.2 million unique digital gene expression tag sequences (300.2 million total raw tag sequences), from which 1.59 million unique tag sequences were identified that mapped to the bovine genome accounting for 85% of the total raw tag abundance. Filtering these tags yielded 87,764 unique tag sequences that unambiguously mapped to 16,517 annotated protein-coding loci in the genome accounting for 45% of the total raw tag abundance. Clustering of tissues based on tag abundance profiles generally confirmed ontology classification based on anatomy. There were 5,429 constitutively expressed loci and 3,445 constitutively expressed unique tag sequences mapping outside annotated gene boundaries that represent a resource for enhancing current gene models. Physical measures such as inferred transcript length or antisense tag abundance identified tissues with atypical transcriptional tag profiles. We report for the first time the tissue specific variation in the proportion of mitochondrial transcriptional tag abundance. The Bovine Gene Atlas can be examined at http://www.agbase.msstate.edu/bovineatlas . Conclusions: The Bovine Gene Atlas is the deepest and broadest transcriptome survey of any livestock genome to date. Commonalities and variation in sense and antisense transcript tag profiles identified in different tissues facilitate the examination of the relationship between gene expression, tissue, and gene function. An atlas of mRNA abundance for 92 adult, juvenile and fetal cattle tissues and 3 cattle cell lines.

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Project description:One of the most fundamental challenges in developing treatments for autism-spectrum disorders is the heterogeneity of the condition. More than one hundred genetic mutations confer high risk for autism, with each individual mutation accounting for only a small fraction of autism cases. Subsets of risk genes can be grouped into functionally-related pathways, most prominently synaptic proteins, translational regulation, and chromatin modifications. To possibly circumvent this genetic complexity, recent therapeutic strategies have focused on the neuropeptides oxytocin and vasopressin which regulate aspects of social behavior in mammals. However, whether genetic risk factors might predispose to autism due to modification of oxytocinergic signaling remains largely unknown. Here, we report that an autism-associated mutation in the synaptic adhesion molecule neuroligin-3 (Nlgn3) results in impaired oxytocin signaling in dopaminergic neurons and in altered social novelty responses in mice. Surprisingly, loss of Nlgn3 is accompanied by a disruption of translation homeostasis in the ventral tegmental area. Treatment of Nlgn3KO mice with a novel, highly specific, brain-penetrant inhibitor of MAP-kinase interacting kinases resets mRNA translation and restores oxytocin and social novelty responses. Thus, this work identifies an unexpected convergence between the genetic autism risk factor Nlgn3, translational regulation, and oxytocinergic signaling. Focus on such common core plasticity elements might provide a pragmatic approach to reduce the heterogeneity of autism phenotypes. Ultimately, this would allow for mechanism-based stratification of patient populations to increase the success of therapeutic interventions.

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