rs886044537

Variant summary

Our verdict is Pathogenic. Variant got 22 ACMG points: 22P and 0B. PVS1PM2PP3_StrongPP5_Very_Strong

The NM_003494.4(DYSF):​c.1480G>T​(p.Glu494Ter) variant causes a stop gained, splice region change. The variant allele was found at a frequency of 0.000000684 in 1,461,422 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DYSF
NM_003494.4 stop_gained, splice_region

Scores

1
1
6
Splicing: ADA: 1.000
2

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 7.03
Variant links:
Genes affected
DYSF (HGNC:3097): (dysferlin) The protein encoded by this gene belongs to the ferlin family and is a skeletal muscle protein found associated with the sarcolemma. It is involved in muscle contraction and contains C2 domains that play a role in calcium-mediated membrane fusion events, suggesting that it may be involved in membrane regeneration and repair. In addition, the protein encoded by this gene binds caveolin-3, a skeletal muscle membrane protein which is important in the formation of caveolae. Specific mutations in this gene have been shown to cause autosomal recessive limb girdle muscular dystrophy type 2B (LGMD2B) as well as Miyoshi myopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 22 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 2-71539239-G-T is Pathogenic according to our data. Variant chr2-71539239-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 290700.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-71539239-G-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DYSFNM_001130987.2 linkuse as main transcriptc.1576G>T p.Val526Leu missense_variant, splice_region_variant 17/56 ENST00000410020.8
DYSFNM_003494.4 linkuse as main transcriptc.1480G>T p.Glu494Ter stop_gained, splice_region_variant 16/55 ENST00000258104.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DYSFENST00000410020.8 linkuse as main transcriptc.1576G>T p.Val526Leu missense_variant, splice_region_variant 17/561 NM_001130987.2 A1O75923-13
DYSFENST00000258104.8 linkuse as main transcriptc.1480G>T p.Glu494Ter stop_gained, splice_region_variant 16/551 NM_003494.4 A1O75923-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251480
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135918
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461422
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727042
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingAthena DiagnosticsSep 27, 2016- -
Pathogenic, criteria provided, single submitterclinical testingRevvity Omics, RevvityOct 26, 2020- -
Pathogenic, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Sep 05, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.054
T
BayesDel_noAF
Benign
-0.22
CADD
Pathogenic
28
DANN
Uncertain
1.0
Eigen
Benign
-0.070
Eigen_PC
Benign
0.10
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Benign
0.052
D
MutationTaster
Benign
1.0
A;A;A;A;A;A;D;D;D;D;D
Vest4
0.87
ClinPred
0.49
T
GERP RS
5.0

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.98
SpliceAI score (max)
0.68
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.68
Position offset: 0

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: rs886044537; hg19: chr2-71766369; API