14-64158689-A-G
Variant summary
Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2
The NM_182914.3(SYNE2):c.15857A>G(p.Tyr5286Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000323 in 1,614,006 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_182914.3 missense
Scores
Clinical Significance
Conservation
Publications
- male infertility with azoospermia or oligozoospermia due to single gene mutationInheritance: AR Classification: MODERATE Submitted by: King Faisal Specialist Hospital and Research Center
- familial medullary thyroid carcinomaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- ovarian dysgenesis 8Inheritance: AD, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Benign. The variant received -9 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SYNE2 | NM_182914.3 | c.15857A>G | p.Tyr5286Cys | missense_variant | Exon 86 of 116 | ENST00000555002.6 | NP_878918.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| SYNE2 | ENST00000555002.6 | c.15857A>G | p.Tyr5286Cys | missense_variant | Exon 86 of 116 | 1 | NM_182914.3 | ENSP00000450831.2 |
Frequencies
GnomAD3 genomes AF: 0.000335 AC: 51AN: 152212Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.000335 AC: 84AN: 250952 AF XY: 0.000361 show subpopulations
GnomAD4 exome AF: 0.000322 AC: 471AN: 1461676Hom.: 0 Cov.: 32 AF XY: 0.000322 AC XY: 234AN XY: 727148 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000335 AC: 51AN: 152330Hom.: 0 Cov.: 32 AF XY: 0.000309 AC XY: 23AN XY: 74490 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Emery-Dreifuss muscular dystrophy 5, autosomal dominant Uncertain:2Benign:1
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. -
This sequence change replaces tyrosine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 5286 of the SYNE2 protein (p.Tyr5286Cys). This variant is present in population databases (rs149354607, gnomAD 0.06%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with SYNE2-related conditions. ClinVar contains an entry for this variant (Variation ID: 198965). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The cysteine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect 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. -
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not provided Uncertain:2
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not specified Uncertain:1
The c.15857A>G (p.Y5286C) alteration is located in exon 86 (coding exon 85) of the SYNE2 gene. This alteration results from a A to G substitution at nucleotide position 15857, causing the tyrosine (Y) at amino acid position 5286 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
SYNE2-related disorder Benign:1
This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at