rs770143299
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP2BS1_Supporting
The NM_005076.5(CNTN2):c.1367C>T(p.Thr456Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000248 in 1,610,842 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T456T) has been classified as Likely benign.
Frequency
Consequence
NM_005076.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CNTN2 | NM_005076.5 | c.1367C>T | p.Thr456Met | missense_variant | 11/23 | ENST00000331830.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CNTN2 | ENST00000331830.7 | c.1367C>T | p.Thr456Met | missense_variant | 11/23 | 1 | NM_005076.5 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000986 AC: 15AN: 152134Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000597 AC: 15AN: 251104Hom.: 0 AF XY: 0.0000737 AC XY: 10AN XY: 135704
GnomAD4 exome AF: 0.000264 AC: 385AN: 1458708Hom.: 0 Cov.: 32 AF XY: 0.000247 AC XY: 179AN XY: 724956
GnomAD4 genome ? AF: 0.0000986 AC: 15AN: 152134Hom.: 0 Cov.: 32 AF XY: 0.0000673 AC XY: 5AN XY: 74316
ClinVar
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 26, 2023 | The c.1367C>T (p.T456M) alteration is located in exon 11 (coding exon 10) of the CNTN2 gene. This alteration results from a C to T substitution at nucleotide position 1367, causing the threonine (T) at amino acid position 456 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Epilepsy, familial adult myoclonic, 5 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 07, 2022 | This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 456 of the CNTN2 protein (p.Thr456Met). This variant is present in population databases (rs770143299, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CNTN2-related conditions. ClinVar contains an entry for this variant (Variation ID: 578301). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CNTN2 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at