Developmental Brain Disorder Gene Database
LoF Variant Gene
Gene
Search
Tier
1
- Unique Cases:
- 18
- Disorders:
- ID, ASD, EP, ADHD, SCZ
- Last Updated:
- November 4, 2024
Gene Summary:
- DBD Genes Classification
- TRIO is a High Confidence candidate gene classified as Tier 1. Tier 1 genes have three or more de novo pathogenic loss-of-function variants.
- Gene Function
- Guanine nucleotide exchange factor (GEF) for RHOA and RAC1 GTPases (PubMed:22155786, PubMed:27418539, PubMed:8643598). Involved in coordinating actin remodeling, which is necessary for cell migration and growth (PubMed:10341202, PubMed:22155786). Plays a key role in the regulation of neurite outgrowth and lamellipodia formation (PubMed:32109419). In developing hippocampal neurons, limits dendrite formation, without affecting the establishment of axon polarity. Once dendrites are formed, involved... (Source: Uniprot)
- Previous symbols
- No previous symbols
- Alias symbols
- ARHGEF23
- Chromosomal Location
- 5p15.2
- Genomic Coordinates
- GRCh37:chr5:14143811-14510313
- GRCh38:chr5:14143342-14510204
- Associated Disorders
- Intellectual Disability, Autism, Epilepsy, Attention Deficit Hyperactivity Disorder
Cases:
Publications:
Howrigan DP et. al., Exome sequencing in schizophrenia-affected parent-offspring trios reveals risk conferred by protein-coding de novo mutations., Nat Neurosci, 2020 |
Ba W et. al., TRIO loss of function is associated with mild intellectual disability and affects dendritic branching and synapse function., Hum Mol Genet, 2016 |
Vulto-van Silfhout AT et. al., Clinical significance of de novo and inherited copy-number variation., Hum Mutat, 2013 |
De Rubeis S et. al., Synaptic, transcriptional and chromatin genes disrupted in autism., Nature, 2014 |
Lindstrand A et. al., Genome sequencing is a sensitive first-line test to diagnose individuals with intellectual disability., Genet Med, 2022 |
External References:
NCBI: Gene
Integrates information from a wide range of species. A record may include nomenclature, Reference Sequences (RefSeqs), maps, pathways, variations, phenotypes, and links to genome-, phenotype-, and locus-specific resources worldwide.
Gene Reviews
An international point-of-care resource for busy clinicians, provides clinically relevant and medically actionable information for inherited conditions in a standardized journal-style format, covering diagnosis, management, and genetic counseling for patients and their families.
DECIPHER
DECIPHER (DatabasE of genomiC varIation and Phenotype in Humans using Ensembl Resources) is an interactive web-based database which incorporates a suite of tools designed to aid the interpretation of genomic variants.
DECIPHER enhances clinical diagnosis by retrieving information from a variety of bioinformatics resources relevant to the variant found in the patient.
SFARI
SFARI Gene is an evolving online database designed to permit quick entrée into the genetics of autism, and to help researchers track the ever-expanding genetic risk factors that emerge in the literature.
ClinGen
ClinGen is a National Institutes of Health (NIH)-funded resource dedicated to building an authoritative central resource that defines the clinical relevance of genes and variants for use in precision medicine and research.
GenCC
The GenCC DB provides information pertaining to the validity of gene-disease relationships, with a current focus on Mendelian diseases.
gnomAD
The Genome Aggregation Database (gnomAD) is a resource developed by an international coalition of investigators, with the goal of aggregating and harmonizing both exome and genome sequencing data from a wide variety of large-scale sequencing projects, and making summary data available for the wider scientific community.