rs150093305

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6BP7

The NM_001130987.2(DYSF):​c.1407G>A​(p.Thr469=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000496 in 1,614,092 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. T469T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

DYSF
NM_001130987.2 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -3.29
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 2-71535047-G-A is Benign according to our data. Variant chr2-71535047-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 285063.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=1}.
BP7
Synonymous conserved (PhyloP=-3.29 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DYSFNM_001130987.2 linkuse as main transcriptc.1407G>A p.Thr469= synonymous_variant 15/56 ENST00000410020.8
DYSFNM_003494.4 linkuse as main transcriptc.1311G>A p.Thr437= synonymous_variant 14/55 ENST00000258104.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DYSFENST00000410020.8 linkuse as main transcriptc.1407G>A p.Thr469= synonymous_variant 15/561 NM_001130987.2 A1O75923-13
DYSFENST00000258104.8 linkuse as main transcriptc.1311G>A p.Thr437= synonymous_variant 14/551 NM_003494.4 A1O75923-1

Frequencies

GnomAD3 genomes
AF:
0.000270
AC:
41
AN:
152088
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000894
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000517
AC:
13
AN:
251438
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135906
show subpopulations
Gnomad AFR exome
AF:
0.000554
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000267
AC:
39
AN:
1461886
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.000717
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.000242
AC XY:
18
AN XY:
74426
show subpopulations
Gnomad4 AFR
AF:
0.000891
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000230
Hom.:
0
Bravo
AF:
0.000280

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 15, 2018- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAthena DiagnosticsJun 16, 2017- -
Autosomal recessive limb-girdle muscular dystrophy type 2B Benign:1
Likely benign, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -
Qualitative or quantitative defects of dysferlin Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.54
CADD
Benign
1.9
DANN
Benign
0.55

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs150093305; hg19: chr2-71762177; API