rs571364996

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001130987.2(DYSF):​c.4867A>G​(p.Ile1623Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000681 in 1,614,092 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 0.814

Publications

1 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: Likely_benign. The variant received -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.06154874).
BP6
Variant 2-71658989-A-G is Benign according to our data. Variant chr2-71658989-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 538640.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DYSFNM_001130987.2 linkc.4867A>G p.Ile1623Val missense_variant Exon 44 of 56 ENST00000410020.8 NP_001124459.1 O75923-13
DYSFNM_003494.4 linkc.4750A>G p.Ile1584Val missense_variant Exon 43 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.4867A>G p.Ile1623Val missense_variant Exon 44 of 56 1 NM_001130987.2 ENSP00000386881.3 O75923-13
DYSFENST00000258104.8 linkc.4750A>G p.Ile1584Val missense_variant Exon 43 of 55 1 NM_003494.4 ENSP00000258104.3 O75923-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152098
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000239
AC:
6
AN:
251482
AF XY:
0.0000294
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000684
AC:
10
AN:
1461876
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
727238
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
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:
0.000116
AC:
10
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111994
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152216
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41538
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10596
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Autosomal recessive limb-girdle muscular dystrophy type 2B Uncertain:2
Oct 28, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jul 14, 2021
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Distal myopathy with anterior tibial onset Uncertain:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Miyoshi muscular dystrophy 1 Uncertain:1
Jul 14, 2021
Genome-Nilou Lab
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin Benign:1
Dec 29, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.059
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
19
DANN
Benign
0.91
DEOGEN2
Benign
0.23
.;.;.;.;T;.;.;.;.;.;.
Eigen
Benign
-0.81
Eigen_PC
Benign
-0.65
FATHMM_MKL
Uncertain
0.80
D
LIST_S2
Benign
0.83
T;T;T;T;T;T;T;T;T;T;T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.062
T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
.;.;.;.;L;.;.;.;.;.;.
PhyloP100
0.81
PrimateAI
Benign
0.40
T
PROVEAN
Benign
-0.57
N;N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.021
Sift
Benign
0.22
T;T;T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.78
T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.078
B;B;B;B;B;B;B;B;B;B;B
Vest4
0.35
MutPred
0.42
.;.;.;.;Gain of sheet (P = 0.1208);.;.;.;.;.;.;
MVP
0.25
MPC
0.12
ClinPred
0.022
T
GERP RS
-0.62
Varity_R
0.042
gMVP
0.18
Mutation Taster
=75/25
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: rs571364996; hg19: chr2-71886119; API