rs142331907
Variant summary
Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6BP7BS2
The NM_014141.6(CNTNAP2):c.3675G>A(p.Ser1225=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000678 in 1,613,876 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.0038 ( 3 hom., cov: 33)
Exomes 𝑓: 0.00035 ( 5 hom. )
Consequence
CNTNAP2
NM_014141.6 synonymous
NM_014141.6 synonymous
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.263
Genes affected
CNTNAP2 (HGNC:13830): (contactin associated protein 2) This gene encodes a member of the neurexin family which functions in the vertebrate nervous system as cell adhesion molecules and receptors. This protein, like other neurexin proteins, contains epidermal growth factor repeats and laminin G domains. In addition, it includes an F5/8 type C domain, discoidin/neuropilin- and fibrinogen-like domains, thrombospondin N-terminal-like domains and a putative PDZ binding site. This protein is localized at the juxtaparanodes of myelinated axons, and mediates interactions between neurons and glia during nervous system development and is also involved in localization of potassium channels within differentiating axons. This gene encompasses almost 1.5% of chromosome 7 and is one of the largest genes in the human genome. It is directly bound and regulated by forkhead box protein P2, a transcription factor related to speech and language development. This gene has been implicated in multiple neurodevelopmental disorders, including Gilles de la Tourette syndrome, schizophrenia, epilepsy, autism, ADHD and intellectual disability. [provided by RefSeq, Jul 2017]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -8 ACMG points.
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.35).
BP6
?
Variant 7-148383848-G-A is Benign according to our data. Variant chr7-148383848-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 136831.We mark this variant Likely_benign, oryginal submissions are: {Benign=3, Uncertain_significance=1, Likely_benign=1}.
BP7
?
Synonymous conserved (PhyloP=-0.263 with no splicing effect.
BS2
?
High Homozygotes in GnomAd at 3 AR gene
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CNTNAP2 | NM_014141.6 | c.3675G>A | p.Ser1225= | synonymous_variant | 22/24 | ENST00000361727.8 | |
LOC105375554 | XR_928093.3 | n.446-2178C>T | intron_variant, non_coding_transcript_variant |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CNTNAP2 | ENST00000361727.8 | c.3675G>A | p.Ser1225= | synonymous_variant | 22/24 | 1 | NM_014141.6 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00380 AC: 578AN: 152082Hom.: 3 Cov.: 33
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GnomAD3 exomes AF: 0.000960 AC: 240AN: 250064Hom.: 1 AF XY: 0.000738 AC XY: 100AN XY: 135502
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GnomAD4 exome AF: 0.000353 AC: 516AN: 1461676Hom.: 5 Cov.: 33 AF XY: 0.000337 AC XY: 245AN XY: 727150
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not specified Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitter | clinical testing | Genetic Services Laboratory, University of Chicago | Nov 24, 2014 | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | Jan 31, 2013 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Cortical dysplasia-focal epilepsy syndrome Benign:2
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 24, 2024 | - - |
Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 23, 2016 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Computational scores
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Name
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BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at