chr2-71590255-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_001130987.2(DYSF):c.3541G>A(p.Asp1181Asn) variant causes a missense change. The variant allele was found at a frequency of 0.000266 in 1,614,172 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00028 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 4.68

Publications

2 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

DYSF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYSF	NM_001130987.2 link	c.3541G>A	p.Asp1181Asn	missense_variant	Exon 32 of 56	ENST00000410020.8	NP_001124459.1	O75923-13
DYSF	NM_003494.4 link	c.3487G>A	p.Asp1163Asn	missense_variant	Exon 32 of 55	ENST00000258104.8	NP_003485.1	O75923-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYSF	ENST00000410020.8 link	c.3541G>A	p.Asp1181Asn	missense_variant	Exon 32 of 56	1	NM_001130987.2	ENSP00000386881.3		O75923-13
DYSF	ENST00000258104.8 link	c.3487G>A	p.Asp1163Asn	missense_variant	Exon 32 of 55	1	NM_003494.4	ENSP00000258104.3		O75923-1

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000127

AC:

AN:

251478

AF XY:

0.000177

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:

0.000273

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000278

AC:

406

AN:

1461886

Hom.:

Cov.:

AF XY:

0.000283

AC XY:

206

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000354

AC:

394

AN:

1112006

Other (OTH)

AF:

0.000182

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

Heterozygous variant carriers

113

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000158

AC:

AN:

152286

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41570

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000193

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000294

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000325

Hom.:

Bravo

AF:

0.000144

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000123

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:7Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:4

Jul 02, 2015

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 14, 2021

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 03, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Sep 15, 2022

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin

Uncertain:1Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Oct 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Uncertain:1

Mar 27, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3487G>A (p.D1163N) alteration is located in exon 32 (coding exon 32) of the DYSF gene. This alteration results from a G to A substitution at nucleotide position 3487, causing the aspartic acid (D) at amino acid position 1163 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Autosomal recessive limb-girdle muscular dystrophy type 2B

Uncertain:1

Mar 10, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.27

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.18

.;.;.;.;T;.;.;.;.;.;.

Eigen

Uncertain

0.19

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

D;D;D;D;D;D;D;D;D;D;D

M_CAP

Benign

0.046

MetaRNN

Uncertain

0.49

T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.52

MutationAssessor

Benign

0.095

.;.;N;.;N;.;.;.;.;.;.

PhyloP100

4.7

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.49

N;N;N;N;N;N;N;N;N;N;N

REVEL

Uncertain

0.40

Sift

Benign

0.76

T;T;T;T;T;T;T;T;T;T;T

Sift4G

Benign

0.83

T;T;T;T;T;T;T;T;T;T;T

Polyphen

0.15

B;P;P;D;D;D;D;B;D;D;B

Vest4

0.77

MVP

0.78

MPC

0.25

ClinPred

0.15

GERP RS

5.6

Varity_R

0.12

gMVP

0.48

Mutation Taster

=25/75

disease causing

(source)

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

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chr2-71590255-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over