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Relevance to Autism

Two de novo protein-truncating variants in the LDB1 gene were identified in ASD probands from the Autism Sequencing Consortium (De Rubeis et al., 2014; Satterstrom et al., 2020), while additional protein-truncating variants were observed in case and control samples from the Danish iPSYCH study (Satterstrom et al., 2020). TADA analysis of de novo variants from the Simons Simplex Collection and the Autism Sequencing Consortium and protein-truncating variants from iPSYCH in Satterstrom et al., 2020 identified LDB1 as a candidate gene with a false discovery rate (FDR) between 0.01 and 0.05 (0.01 < FDR 0.05).

Molecular Function

Binds to the LIM domain of a wide variety of LIM domain-containing transcription factors. May regulate the transcriptional activity of LIM-containing proteins by determining specific partner interactions. Plays a role in the development of interneurons and motor neurons in cooperation with LHX3 and ISL1. Acts synergistically with LHX1/LIM1 in axis formation and activation of gene expression.

External Links

        

References

Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
Synaptic, transcriptional and chromatin genes disrupted in autism.
ASD
Support
DD
Recent recommendation
Large-Scale Exome Sequencing Study Implicates Both Developmental and Functional Changes in the Neurobiology of Autism
ASD

Rare

Variant ID
Variant Type
Allele Change
Residue Change
Inheritance Pattern
Inheritance Association
Family Type
Author, Year
 GEN1155R001 
 frameshift_variant 
 c.306del 
 p.Met103CysfsTer2 
 De novo 
  
 Simplex 
 GEN1155R002 
 frameshift_variant 
 c.906del 
 p.Gly304AlafsTer4 
 De novo 
  
 Simplex 
 GEN1155R003 
 missense_variant 
 c.361C>T 
 p.Arg121Trp 
 De novo 
  
 Simplex 
 GEN1155R004 
 frameshift_variant 
 c.938del 
 p.Asn313ThrfsTer25 
 De novo 
  
  
  et al.  
 GEN1155R005 
 frameshift_variant 
 c.849_852del 
 p.Pro284LeufsTer23 
 De novo 
  
  
  et al.  
 GEN1155R006 
 frameshift_variant 
 c.798_799del 
 p.Asp268LeufsTer58 
 Familial 
 Maternal 
  
  et al.  

Common

No Common Variants Available
Chromosome
CNV Locus
CNV Type
# of studies
Animal Model
10
Duplication
 1
 
10
Duplication
 1
 
10
Duplication
 1
 
10
Duplication
 2
 

No Animal Model Data Available

 

No Interactions Available
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