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Relevance to Autism

Expression of the SEMA5A gene has been shown to be down-regulated in some autistic individuals (Melin et al., 2006).

Molecular Function

The encoded protein is a member of the semaphorin family of membrane proteins that play roles in axonal guidance during neural development.

External Links

        

References

Type
Title
Type of Disorder
Associated Disorders
Author, Year
Primary
Constitutional downregulation of SEMA5A expression in autism.
ASD
Positive Association
Polymorphism in the Promoter Region of SEMA5A Is Associated with Sociality Traits in Korean Subjects with Autism Spectrum Disorders.
ASD
Sociability traits (as measured by SRS)
Positive Association
A genome-wide linkage and association scan reveals novel loci for autism.
ASD
Negative Association
Lack of replication of previous autism spectrum disorder GWAS hits in European populations.
ASD
Negative Association
The association of rs4307059 and rs35678 markers with autism spectrum disorders is replicated in Italian families.
ASD
Support
ASD
Support
Massively parallel sequencing of patients with intellectual disability, congenital anomalies and/or autism spectrum disorders with a targeted gene ...
DD, ID, ASD
MCA
Support
ASD
Support
Refinement and discovery of new hotspots of copy-number variation associated with autism spectrum disorder.
ASD
Support
Integrating de novo and inherited variants in 42
ASD
Support
Inherited and De Novo Genetic Risk for Autism Impacts Shared Networks.
ASD
Support
Targeted DNA Sequencing from Autism Spectrum Disorder Brains Implicates Multiple Genetic Mechanisms.
ASD
Support
A de novo microdeletion of SEMA5A in a boy with autism spectrum disorder and intellectual disability.
ASD
ID
Support
The contribution of de novo coding mutations to autism spectrum disorder
ASD
Highly Cited
Inactivation of the Sema5a gene results in embryonic lethality and defective remodeling of the cranial vascular system.
Recent Recommendation
Semaphorin 5A inhibits synaptogenesis in early postnatal- and adult-born hippocampal dentate granule cells.
Recent Recommendation
The SEMA5A gene is associated with hippocampal volume, and their interaction is associated with performance on Raven's Progressive Matrices.
Recent Recommendation
An eQTL mapping approach reveals that rare variants in the SEMA5A regulatory network impact autism risk.
Recent Recommendation
Semaphorin 5A is a bifunctional axon guidance cue regulated by heparan and chondroitin sulfate proteoglycans.
Recent Recommendation
Plexin-B3 is a functional receptor for semaphorin 5A.

Rare

Variant ID
Variant Type
Allele Change
Residue Change
Inheritance Pattern
Inheritance Association
Family Type
Author, Year
 GEN226R001 
 copy_number_loss 
  
  
 De novo 
  
 Simplex 
 GEN226R002 
 missense_variant 
 c.246G>T 
 p.Gln82His 
 Unknown 
 Not tested 
  
 GEN226R003 
 copy_number_loss 
  
  
 De novo 
  
 Simplex 
 GEN226R004 
 missense_variant 
 c.2866A>G 
 p.Ser956Gly 
 Unknown 
  
 Unknown 
 GEN226R005 
 missense_variant 
 c.2026C>T 
 p.Arg676Cys 
 Familial 
 Maternal 
 Simplex 
 GEN226R006 
 missense_variant 
 c.2983C>T 
 p.Arg995Trp 
 Familial 
 Maternal 
 Simplex 
 GEN226R007 
 stop_gained 
 c.586C>T 
 p.Arg196Ter 
 Unknown 
  
 Unknown 
 GEN226R008 
 missense_variant 
 c.2852C>G 
 p.Ser951Cys 
 De novo 
  
 Simplex 
 GEN226R009 
 stop_gained 
 c.2103T>A 
 p.Cys701Ter 
 De novo 
  
 Multiplex 
 GEN226R010 
 splice_region_variant 
 c.3106-5dup 
  
 De novo 
  
 Simplex 
 GEN226R011 
 missense_variant 
 c.2872G>A 
 p.Val958Ile 
 De novo 
  
  
 GEN226R012 
 missense_variant 
 c.1361G>C 
 p.Arg454Thr 
 De novo 
  
  
 GEN226R013 
 synonymous_variant 
 c.2271C>T 
 p.Ser757%3D 
 De novo 
  
 Multiplex 
 GEN226R014 
 missense_variant 
 c.2026C>T 
 p.Arg676Cys 
 Familial 
 Paternal 
  

Common

Variant ID
Polymorphism
SNP ID
Allele Change
Residue Change
Population Origin
Population Stage
Author, Year
 GEN226C001 
 intergenic_variant 
 rs10513025 
  
  
 Discovery: AGRE/NIHM 
 Discovery 
 GEN226C002 
 intergenic_variant 
 rs10513025 
  
  
 Replication: family samples from multiple centers 
 Replication 
 GEN226C003 
 intergenic_variant 
 rs194085 
  
  
 250 Korean ASD trios 
 Discovery 
Chromosome
CNV Locus
CNV Type
# of studies
Animal Model
5
Deletion-Duplication
 37
 
5
Deletion-Duplication
 10
 
5
Deletion
 4
 
5
Duplication
 2
 
5
Duplication
 1
 
5
Duplication
 2
 
5
Deletion
 1
 
5
Deletion
 2
 
5
Deletion
 3
 
5
Deletion
 4
 
5
Deletion
 10
 

Model Summary

Identification of a role for Sema5A in the regional patterning of the vasculature.

References

Type
Title
Author, Year
Primary
Inactivation of the Sema5a gene results in embryonic lethality and defective remodeling of the cranial vascular system.

M_SEMA5A_1_KO_HM

Model Type: Genetic
Model Genotype: Homozygous
Mutation: Targeted replacement of exons 4 and 5 of Sema5a gene with a neomycin seelction cassette.
Allele Type: Targeted (Knock Out)
Strain of Origin: Not Specified
Genetic Background: 129/Sv/NMRI
ES Cell Line: R1
Mutant ES Cell Line: Not Specified
Model Source: Not Specified

M_SEMA5A_1_KO_HM

Category
Entity
Quantity
Experimental Paradigm
Age at Testing
Cardiovascular development and function1
Decreased
Description: Decreased number of large diameter vessels in cranial region; abnormal large vessel branching pattern and decreased complexity of branches
Exp Paradigm: Whole-mount immunohistochemistry with an anti-pecam antibody
 Whole-mount immunohistochemistry
 E10.5-e11.5
Mortality/lethality1
Increased
Description: Increased lethality
Exp Paradigm: General observations
 General observations
 E11.5-12.5
Protein expression level evidence1
Decreased
Description: Absence of sema5a protein
Exp Paradigm: Sema5a protein level
 Western blot
 E10.5
Cardiovascular development and function1
 No change
 In situ hybridization (ish)
 E10.5
Cardiovascular development and function1
 No change
 Whole-mount immunohistochemistry
 E10.5-e11.5
Developmental trajectory1
 No change
 Histology
 E11.5
Size/growth1
 No change
 General observations
 E0.5-e12.5
Brain morphology1
 No change
 Whole-mount immunohistochemistry
 E10.5 - e11.5
 Not Reported: Circadian sleep/wake cycle, Communications, Emotion, Immune response, Learning & memory, Maternal behavior, Motor phenotype, Neurophysiology, Physiological parameters, Repetitive behavior, Seizure, Sensory, Social behavior


Interactor Symbol Interactor Name Interactor Organism Entrez ID Uniprot ID Interaction Type Evidence Reference
PLXNB3 plexin B3 5365 Q9ULL4 Affinity chromatography
Artigiani S , et al. 2004
MIB1 mindbomb E3 ubiquitin protein ligase 1 307594 D3ZUV2 Affinity chromatography; LC-MS/MS
Mertz J , et al. 2015

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