ClinVar Miner

Submissions for variant NM_006772.3(SYNGAP1):c.403C>T (p.Arg135Ter)

dbSNP: rs1131692154
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 5
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000623941 SCV000741170 pathogenic Inborn genetic diseases 2015-12-01 criteria provided, single submitter clinical testing
Invitae RCV001205064 SCV001376300 pathogenic Intellectual disability, autosomal dominant 5 2024-01-29 criteria provided, single submitter clinical testing This sequence change creates a premature translational stop signal (p.Arg135*) in the SYNGAP1 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SYNGAP1 are known to be pathogenic (PMID: 23161826, 23708187, 26989088). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This premature translational stop signal has been observed in individual(s) with SYNGAP1-related conditions (PMID: 26989088, 27334371). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 430834). For these reasons, this variant has been classified as Pathogenic.
GeneDx RCV001541131 SCV001759089 pathogenic not provided 2022-04-05 criteria provided, single submitter clinical testing Nonsense variant predicted to result in nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; This variant is associated with the following publications: (PMID: 28688840, 26989088, 27334371, 33644862)
Fulgent Genetics, Fulgent Genetics RCV001205064 SCV002809904 pathogenic Intellectual disability, autosomal dominant 5 2022-01-06 criteria provided, single submitter clinical testing
Foundation for Research in Genetics and Endocrinology, FRIGE's Institute of Human Genetics RCV000495902 SCV000579501 likely pathogenic Intellectual disability, autosomal recessive 5 2017-06-21 no assertion criteria provided clinical testing The observed variant is reported neither in ExAC nor 1000 Genomes and is likely to be pathogenic by in silico analysis using Mutation Taster. Child, born to non-consangeneous parents, presented with clinical indications of day time sleepiness, increased dullness, irritability, changed behavior and emotions, decreased body strength, walking and speech developmental delay and drop attacks. Parents did not have the allele.

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.