rs886043522
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3
The NM_182961.4(SYNE1):āc.20546T>Cā(p.Val6849Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,614,048 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ā ).
Frequency
Genomes: š 0.000013 ( 0 hom., cov: 32)
Exomes š: 0.0000021 ( 0 hom. )
Consequence
SYNE1
NM_182961.4 missense
NM_182961.4 missense
Scores
6
9
4
Clinical Significance
Conservation
PhyloP100: 8.95
Genes affected
SYNE1 (HGNC:17089): (spectrin repeat containing nuclear envelope protein 1) This gene encodes a spectrin repeat containing protein expressed in skeletal and smooth muscle, and peripheral blood lymphocytes, that localizes to the nuclear membrane. Mutations in this gene have been associated with autosomal recessive spinocerebellar ataxia 8, also referred to as autosomal recessive cerebellar ataxia type 1 or recessive ataxia of Beauce. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 4 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
PP2
?
Missense variant where missense usually causes diseases, SYNE1
PP3
?
MetaRNN computational evidence supports a deleterious effect, 0.828
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SYNE1 | NM_182961.4 | c.20546T>C | p.Val6849Ala | missense_variant | 112/146 | ENST00000367255.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SYNE1 | ENST00000367255.10 | c.20546T>C | p.Val6849Ala | missense_variant | 112/146 | 1 | NM_182961.4 | P1 | |
SYNE1 | ENST00000423061.6 | c.20333T>C | p.Val6778Ala | missense_variant | 111/146 | 1 | |||
SYNE1 | ENST00000367256.9 | n.4238T>C | non_coding_transcript_exon_variant | 27/61 | 1 | ||||
SYNE1 | ENST00000409694.6 | n.4130T>C | non_coding_transcript_exon_variant | 25/59 | 1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152212Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251218Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135806
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461836Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727220
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152212Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74366
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Mar 26, 2019 | Has not been previously published as pathogenic or benign to our knowledge; Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect - |
Uncertain significance, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Mar 23, 2016 | - - |
Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 15, 2021 | 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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with SYNE1-related disease. ClinVar contains an entry for this variant (Variation ID: 286929). This variant is not present in population databases (ExAC no frequency). This sequence change replaces valine with alanine at codon 6778 of the SYNE1 protein (p.Val6778Ala). The valine residue is highly conserved and there is a small physicochemical difference between valine and alanine. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
D;.;T
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D;D;D
M_CAP
Benign
D
MetaRNN
Pathogenic
D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.;.
MutationTaster
Benign
D;D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D;.;D
REVEL
Uncertain
Sift
Uncertain
D;.;D
Sift4G
Pathogenic
D;D;D
Polyphen
D;.;.
Vest4
MutPred
Gain of disorder (P = 0.0624);.;.;
MVP
MPC
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at