rs377056951

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_001130987.2(DYSF):​c.378G>A​(p.Pro126Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000812 in 1,551,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P126P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000081 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: -0.632

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: Likely_benign. The variant received -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 2-71511839-G-A is Benign according to our data. Variant chr2-71511839-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 259076.
BP7
Synonymous conserved (PhyloP=-0.632 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DYSFNM_001130987.2 linkc.378G>A p.Pro126Pro synonymous_variant Exon 5 of 56 ENST00000410020.8 NP_001124459.1 O75923-13
DYSFNM_003494.4 linkc.375G>A p.Pro125Pro synonymous_variant Exon 5 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.378G>A p.Pro126Pro synonymous_variant Exon 5 of 56 1 NM_001130987.2 ENSP00000386881.3 O75923-13
DYSFENST00000258104.8 linkc.375G>A p.Pro125Pro synonymous_variant Exon 5 of 55 1 NM_003494.4 ENSP00000258104.3 O75923-1

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152202
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000575
AC:
9
AN:
156552
AF XY:
0.0000485
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000404
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000808
AC:
113
AN:
1399150
Hom.:
0
Cov.:
31
AF XY:
0.0000913
AC XY:
63
AN XY:
690124
show subpopulations
African (AFR)
AF:
0.0000317
AC:
1
AN:
31590
American (AMR)
AF:
0.0000280
AC:
1
AN:
35702
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79228
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49184
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.000101
AC:
109
AN:
1078820
Other (OTH)
AF:
0.0000345
AC:
2
AN:
58008
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
6
12
18
24
30
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
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
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.000135
AC XY:
10
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41446
American (AMR)
AF:
0.0000654
AC:
1
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000147
AC:
10
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000756

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Nov 06, 2015
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy type 2B Uncertain:1
Jan 24, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not specified Benign:1
-
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin Benign:1
Nov 18, 2024
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
BayesDel_noAF
Benign
-0.66
CADD
Benign
0.46
DANN
Benign
0.88
PhyloP100
-0.63
Mutation Taster
=99/1
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: rs377056951; hg19: chr2-71738969; API