6-152458930-C-T

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP2BP4_StrongBP6_Very_StrongBS2

The NM_182961.4(SYNE1):​c.2395G>A​(p.Val799Ile) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000757 in 1,613,768 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00053 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00078 ( 19 hom. )

Consequence

SYNE1
NM_182961.4 missense, splice_region

Scores

2
17
Splicing: ADA: 0.8456
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 2.21
Variant links:
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 Benign. Variant got -15 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SYNE1. . Gene score misZ -0.29069 (greater than the threshold 3.09). Trascript score misZ 3.2909 (greater than threshold 3.09). GenCC has associacion of gene with autosomal recessive ataxia, Beauce type, autosomal recessive myogenic arthrogryposis multiplex congenita, Emery-Dreifuss muscular dystrophy 4, autosomal dominant, arthrogryposis multiplex congenita 3, myogenic type, autosomal dominant Emery-Dreifuss muscular dystrophy.
BP4
Computational evidence support a benign effect (MetaRNN=0.003854245).
BP6
Variant 6-152458930-C-T is Benign according to our data. Variant chr6-152458930-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 355934.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-152458930-C-T is described in Lovd as [Likely_benign].
BS2
High AC in GnomAd4 at 80 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SYNE1NM_182961.4 linkuse as main transcriptc.2395G>A p.Val799Ile missense_variant, splice_region_variant 22/146 ENST00000367255.10 NP_892006.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SYNE1ENST00000367255.10 linkuse as main transcriptc.2395G>A p.Val799Ile missense_variant, splice_region_variant 22/1461 NM_182961.4 ENSP00000356224.5 Q8NF91-1

Frequencies

GnomAD3 genomes
AF:
0.000526
AC:
80
AN:
152016
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000525
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000387
Gnomad SAS
AF:
0.0131
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00158
AC:
395
AN:
250638
Hom.:
5
AF XY:
0.00209
AC XY:
283
AN XY:
135470
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000218
Gnomad SAS exome
AF:
0.0125
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000442
Gnomad OTH exome
AF:
0.000655
GnomAD4 exome
AF:
0.000781
AC:
1141
AN:
1461634
Hom.:
19
Cov.:
32
AF XY:
0.00112
AC XY:
811
AN XY:
727114
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0121
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000315
Gnomad4 OTH exome
AF:
0.000944
GnomAD4 genome
AF:
0.000526
AC:
80
AN:
152134
Hom.:
1
Cov.:
32
AF XY:
0.000753
AC XY:
56
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.000524
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000387
Gnomad4 SAS
AF:
0.0131
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.0000416
Hom.:
0
Bravo
AF:
0.000151
ExAC
AF:
0.00177
AC:
215
Asia WGS
AF:
0.00606
AC:
21
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:5
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenNov 01, 2024SYNE1: BP4, BS1, BS2 -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsApr 24, 2019- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxOct 26, 2021- -
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 12, 2023- -
Autosomal recessive ataxia, Beauce type Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This 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. -
Emery-Dreifuss muscular dystrophy 4, autosomal dominant Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.58
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
T;.;T;.;.;.;T
Eigen
Benign
-0.11
Eigen_PC
Benign
0.058
FATHMM_MKL
Benign
0.37
N
LIST_S2
Uncertain
0.88
D;D;D;D;D;D;D
M_CAP
Benign
0.010
T
MetaRNN
Benign
0.0039
T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.8
L;.;.;L;.;L;.
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.34
N;.;N;N;N;N;N
REVEL
Benign
0.033
Sift
Benign
0.27
T;.;T;T;T;T;T
Sift4G
Benign
0.42
T;T;T;T;T;T;T
Polyphen
0.034
B;.;.;B;B;.;B
Vest4
0.15
MutPred
0.23
Loss of methylation at K800 (P = 0.0623);.;.;Loss of methylation at K800 (P = 0.0623);.;Loss of methylation at K800 (P = 0.0623);.;
MVP
0.47
MPC
0.12
ClinPred
0.012
T
GERP RS
4.8
Varity_R
0.061
gMVP
0.074

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.85
dbscSNV1_RF
Benign
0.59

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs199670962; hg19: chr6-152780065; API