chr2-71613335-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6BP7

The NM_001130987.2(DYSF):c.4389C>T(p.Asp1463Asp) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000664 in 1,612,522 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 predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). The gene DYSF is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 splice_region, synonymous

Scores

Splicing: ADA: 0.00001184

Clinical Significance

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

Conservation

PhyloP100: -0.0660

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

Specifications for DYSF are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.61).

BP6

Variant 2-71613335-C-T is Benign according to our data. Variant chr2-71613335-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 499022.

BP7

Synonymous conserved (PhyloP=-0.066 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001130987.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DYSF	NM_001130987.2	MANE Select	c.4389C>T	p.Asp1463Asp	splice_region synonymous	Exon 40 of 56	NP_001124459.1	O75923-13
DYSF	NM_003494.4	MANE Plus Clinical	c.4335C>T	p.Asp1445Asp	splice_region synonymous	Exon 40 of 55	NP_003485.1	O75923-1
DYSF	NM_001130981.2		c.4386C>T	p.Asp1462Asp	splice_region synonymous	Exon 40 of 56	NP_001124453.1	O75923-7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DYSF	ENST00000410020.8	TSL:1 MANE Select	c.4389C>T	p.Asp1463Asp	splice_region synonymous	Exon 40 of 56	ENSP00000386881.3	O75923-13
DYSF	ENST00000258104.8	TSL:1 MANE Plus Clinical	c.4335C>T	p.Asp1445Asp	splice_region synonymous	Exon 40 of 55	ENSP00000258104.3	O75923-1
DYSF	ENST00000409582.7	TSL:1	c.4386C>T	p.Asp1462Asp	splice_region synonymous	Exon 40 of 56	ENSP00000386547.3	O75923-7

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00154

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000141

AC:

AN:

248726

AF XY:

0.0000819

show subpopulations

Gnomad AFR exome

AF:

0.0000627

Gnomad AMR exome

AF:

0.000175

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00131

Gnomad FIN exome

AF:

0.0000466

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000568

AC:

AN:

1460288

Hom.:

Cov.:

AF XY:

0.0000496

AC XY:

AN XY:

726146

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33466

American (AMR)

AF:

0.000202

AC:

AN:

44562

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26090

East Asian (EAS)

AF:

0.000756

AC:

AN:

39690

South Asian (SAS)

AF:

0.0000467

AC:

AN:

85602

European-Finnish (FIN)

AF:

0.0000938

AC:

AN:

53330

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.0000243

AC:

AN:

1111412

Other (OTH)

AF:

0.0000828

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000158

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74424

show subpopulations

African (AFR)

AF:

0.000169

AC:

AN:

41526

American (AMR)

AF:

0.000392

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00155

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000123

Hom.:

Bravo

AF:

0.000287

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Autosomal recessive limb-girdle muscular dystrophy type 2B (1)

Neuromuscular disease caused by qualitative or quantitative defects of dysferlin (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.61

CADD

Benign

1.7

(source)

DANN

Benign

0.41

PhyloP100

-0.066

Mutation Taster

=70/30

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000012

dbscSNV1_RF

Benign

0.0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over