Genetic Variant MYOF:p.Asp1979Asn (chr10-93310598-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_013451.4(MYOF):c.5935G>A(p.Asp1979Asn) variant causes a missense change. The variant allele was found at a frequency of 0.0000279 in 1,614,180 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

MYOF
NM_013451.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17

Variant links:

Genes affected

MYOF (HGNC:3656): (myoferlin) Mutations in dysferlin, a protein associated with the plasma membrane, can cause muscle weakness that affects both proximal and distal muscles. The protein encoded by this gene is a type II membrane protein that is structurally similar to dysferlin. It is a member of the ferlin family and associates with both plasma and nuclear membranes. The protein contains C2 domains that play a role in calcium-mediated membrane fusion events, suggesting that it may be involved in membrane regeneration and repair. Two transcript variants encoding different isoforms have been found for this gene. Other possible variants have been detected, but their full-length nature has not been determined. [provided by RefSeq, Dec 2008]

MYOF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06365627).

BS2

High AC in GnomAd4 at 14 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYOF	NM_013451.4 link	c.5935G>A	p.Asp1979Asn	missense_variant	Exon 52 of 54	ENST00000359263.9	NP_038479.1	Q9NZM1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MYOF	ENST00000359263.9 link	c.5935G>A	p.Asp1979Asn	missense_variant	Exon 52 of 54	1	NM_013451.4	ENSP00000352208.4	Q9NZM1-1
MYOF	ENST00000358334.9 link	c.5896G>A	p.Asp1966Asn	missense_variant	Exon 51 of 53	1		ENSP00000351094.5	Q9NZM1-6
MYOF	ENST00000463743.5 link	n.*494G>A		non_coding_transcript_exon_variant	Exon 32 of 34	5		ENSP00000432708.1	H0YD14
MYOF	ENST00000463743.5 link	n.*494G>A		3_prime_UTR_variant	Exon 32 of 34	5		ENSP00000432708.1	H0YD14

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152186

Hom.:

Cov.:

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:

0.00269

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000120

AC:

AN:

249554

Hom.:

AF XY:

0.000103

AC XY:

AN XY:

135388

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00145

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000212

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000428

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000809

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00270

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000529

ExAC

AF:

0.000116

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.5935G>A (p.D1979N) alteration is located in exon 52 (coding exon 52) of the MYOF gene. This alteration results from a G to A substitution at nucleotide position 5935, causing the aspartic acid (D) at amino acid position 1979 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.31

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.55

.;D

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Uncertain

0.97

LIST_S2

Pathogenic

0.98

D;D

M_CAP

Benign

0.069

MetaRNN

Benign

0.064

T;T

MetaSVM

Uncertain

0.12

MutationAssessor

Uncertain

2.8

.;M

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-2.6

D;D

REVEL

Uncertain

0.42

Sift

Uncertain

0.0070

D;D

Sift4G

Benign

0.094

T;T

Polyphen

0.88

P;P

Vest4

0.47

MVP

0.91

MPC

0.35

ClinPred

0.27

GERP RS

5.2

Varity_R

0.40

gMVP

0.70

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over