rs148902254

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001130987.2(DYSF):​c.2817G>A​(p.Ser939Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00061 in 1,614,208 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. S939S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0032 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00034 ( 5 hom. )

Consequence

DYSF
NM_001130987.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -8.24

Publications

0 publications found
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]
DYSF Gene-Disease associations (from GenCC):
  • autosomal recessive limb-girdle muscular dystrophy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • neuromuscular disease caused by qualitative or quantitative defects of dysferlin
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
  • autosomal recessive limb-girdle muscular dystrophy type 2B
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • distal myopathy with anterior tibial onset
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • congenital myopathy, Paradas type
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Miyoshi myopathy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.86).
BP6
Variant 2-71568291-G-A is Benign according to our data. Variant chr2-71568291-G-A is described in ClinVar as Benign. ClinVar VariationId is 94293.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-8.24 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00323 (492/152320) while in subpopulation AFR AF = 0.0112 (466/41580). AF 95% confidence interval is 0.0104. There are 2 homozygotes in GnomAd4. There are 231 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DYSFNM_001130987.2 linkc.2817G>A p.Ser939Ser synonymous_variant Exon 26 of 56 ENST00000410020.8 NP_001124459.1 O75923-13
DYSFNM_003494.4 linkc.2763G>A p.Ser921Ser synonymous_variant Exon 26 of 55 ENST00000258104.8 NP_003485.1 O75923-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DYSFENST00000410020.8 linkc.2817G>A p.Ser939Ser synonymous_variant Exon 26 of 56 1 NM_001130987.2 ENSP00000386881.3 O75923-13
DYSFENST00000258104.8 linkc.2763G>A p.Ser921Ser synonymous_variant Exon 26 of 55 1 NM_003494.4 ENSP00000258104.3 O75923-1

Frequencies

GnomAD3 genomes
AF:
0.00319
AC:
486
AN:
152202
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00192
GnomAD2 exomes
AF:
0.00109
AC:
274
AN:
251122
AF XY:
0.000825
show subpopulations
Gnomad AFR exome
AF:
0.0130
Gnomad AMR exome
AF:
0.00145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000337
AC:
493
AN:
1461888
Hom.:
5
Cov.:
36
AF XY:
0.000285
AC XY:
207
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.0105
AC:
353
AN:
33480
American (AMR)
AF:
0.00134
AC:
60
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.000693
AC:
4
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000342
AC:
38
AN:
1112012
Other (OTH)
AF:
0.000596
AC:
36
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
35
69
104
138
173
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00323
AC:
492
AN:
152320
Hom.:
2
Cov.:
33
AF XY:
0.00310
AC XY:
231
AN XY:
74454
show subpopulations
African (AFR)
AF:
0.0112
AC:
466
AN:
41580
American (AMR)
AF:
0.00131
AC:
20
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5160
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68034
Other (OTH)
AF:
0.00190
AC:
4
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
28
55
83
110
138
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00188
Hom.:
2
Bravo
AF:
0.00373
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Dec 20, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 11, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:2
Jul 15, 2013
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
0.026
DANN
Benign
0.77
PhyloP100
-8.2
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs148902254; hg19: chr2-71795421; COSMIC: COSV50634600; COSMIC: COSV50634600; API