chr14-64141344-T-C
Variant summary
Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4BP6BS1BS2
The NM_182914.3(SYNE2):c.14980T>C(p.Phe4994Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000651 in 1,612,310 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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 -10 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt | 
|---|---|---|---|---|---|---|---|---|
| SYNE2 | NM_182914.3 | c.14980T>C | p.Phe4994Leu | missense_variant | Exon 81 of 116 | ENST00000555002.6 | NP_878918.2 | 
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt | 
|---|---|---|---|---|---|---|---|---|---|---|
| SYNE2 | ENST00000555002.6 | c.14980T>C | p.Phe4994Leu | missense_variant | Exon 81 of 116 | 1 | NM_182914.3 | ENSP00000450831.2 | 
Frequencies
GnomAD3 genomes  0.0000329  AC: 5AN: 152026Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000161  AC: 4AN: 249166 AF XY:  0.0000148   show subpopulations 
GnomAD4 exome  AF:  0.0000685  AC: 100AN: 1460284Hom.:  0  Cov.: 31 AF XY:  0.0000744  AC XY: 54AN XY: 726270 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000329  AC: 5AN: 152026Hom.:  0  Cov.: 32 AF XY:  0.0000404  AC XY: 3AN XY: 74256 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
This sequence change replaces phenylalanine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 4994 of the SYNE2 protein (p.Phe4994Leu). This variant is present in population databases (rs747348017, gnomAD 0.003%). 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: 313602). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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 specified    Uncertain:1 
The c.14980T>C (p.F4994L) alteration is located in exon 81 (coding exon 80) of the SYNE2 gene. This alteration results from a T to C substitution at nucleotide position 14980, causing the phenylalanine (F) at amino acid position 4994 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at