14-64221587-G-C
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2
The NM_182914.3(SYNE2):c.20073G>C(p.Gln6691His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,078 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 Uncertain significance (★★).
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 -7 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_182914.3. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SYNE2 | NM_182914.3 | MANE Select | c.20073G>C | p.Gln6691His | missense | Exon 112 of 116 | NP_878918.2 | ||
| SYNE2 | NM_015180.6 | c.20004G>C | p.Gln6668His | missense | Exon 111 of 115 | NP_055995.4 | |||
| SYNE2 | NM_182913.4 | c.1017G>C | p.Gln339His | missense | Exon 7 of 11 | NP_878917.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SYNE2 | ENST00000555002.6 | TSL:1 MANE Select | c.20073G>C | p.Gln6691His | missense | Exon 112 of 116 | ENSP00000450831.2 | ||
| SYNE2 | ENST00000344113.8 | TSL:1 | c.20004G>C | p.Gln6668His | missense | Exon 111 of 115 | ENSP00000341781.4 | ||
| SYNE2 | ENST00000458046.6 | TSL:1 | c.1017G>C | p.Gln339His | missense | Exon 7 of 11 | ENSP00000391937.2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461894Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4AN XY: 727248 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152184Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74340 show subpopulations ⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
ClinVar
Submissions by phenotype
Emery-Dreifuss muscular dystrophy 5, autosomal dominant Uncertain:2
This sequence change replaces glutamine, which is neutral and polar, with histidine, which is basic and polar, at codon 6691 of the SYNE2 protein (p.Gln6691His). This variant is not present in population databases (gnomAD no frequency). 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: 470964). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The histidine 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.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at