2-151603751-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_001164507.2(NEB):c.13081G>A(p.Glu4361Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00258 in 151,794 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict 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. E4361E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0026 ( 0 hom., cov: 22)

Exomes 𝑓: 0.0035 ( 3 hom. )

Failed GnomAD Quality Control

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:5

Conservation

PhyloP100: -0.851

Publications

3 publications found

Variant links:

Genes affected

NEB (HGNC:7720): (nebulin) This gene encodes nebulin, a giant protein component of the cytoskeletal matrix that coexists with the thick and thin filaments within the sarcomeres of skeletal muscle. In most vertebrates, nebulin accounts for 3 to 4% of the total myofibrillar protein. The encoded protein contains approximately 30-amino acid long modules that can be classified into 7 types and other repeated modules. Protein isoform sizes vary from 600 to 800 kD due to alternative splicing that is tissue-, species-,and developmental stage-specific. Of the 183 exons in the nebulin gene, at least 43 are alternatively spliced, although exons 143 and 144 are not found in the same transcript. Of the several thousand transcript variants predicted for nebulin, the RefSeq Project has decided to create three representative RefSeq records. Mutations in this gene are associated with recessive nemaline myopathy. [provided by RefSeq, Sep 2009]

NEB Gene-Disease associations (from GenCC):

nemaline myopathy 2
Inheritance: AR, AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, G2P, Ambry Genetics
childhood-onset nemaline myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
intermediate nemaline myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
typical nemaline myopathy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
lethal multiple pterygium syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
severe congenital nemaline myopathy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

NEB links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0210782).

BP6

Variant 2-151603751-C-T is Benign according to our data. Variant chr2-151603751-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 257730.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.13081G>A	p.Glu4361Lys	missense_variant	Exon 86 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.13081G>A	p.Glu4361Lys	missense_variant	Exon 86 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.13081G>A	p.Glu4361Lys	missense_variant	Exon 86 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.13081G>A	p.Glu4361Lys	missense_variant	Exon 86 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000409198.5 link	c.11601+6058G>A		intron_variant	Intron 78 of 149	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00258

AC:

392

AN:

151676

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000948

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00269

Gnomad FIN

AF:

0.00189

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00442

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.00206

AC:

326

AN:

157902

AF XY:

0.00206

show subpopulations

Gnomad AFR exome

AF:

0.000604

Gnomad AMR exome

AF:

0.000809

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00217

Gnomad NFE exome

AF:

0.00320

Gnomad OTH exome

AF:

0.00155

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00355

AC:

4932

AN:

1389958

Hom.:

Cov.:

AF XY:

0.00354

AC XY:

2428

AN XY:

685614

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.000735

AC:

AN:

31288

American (AMR)

AF:

0.000953

AC:

AN:

35662

Ashkenazi Jewish (ASJ)

AF:

0.0000794

AC:

AN:

25176

East Asian (EAS)

AF:

0.00

AC:

AN:

35736

South Asian (SAS)

AF:

0.00297

AC:

234

AN:

78842

European-Finnish (FIN)

AF:

0.00269

AC:

133

AN:

49454

Middle Eastern (MID)

AF:

0.000246

AC:

AN:

4070

European-Non Finnish (NFE)

AF:

0.00407

AC:

4359

AN:

1071956

Other (OTH)

AF:

0.00253

AC:

146

AN:

57774

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.255

Heterozygous variant carriers

677

1353

2030

2706

3383

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

178

356

534

712

890

<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:

0.00258

AC:

392

AN:

151794

Hom.:

Cov.:

AF XY:

0.00219

AC XY:

163

AN XY:

74286

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.000945

AC:

AN:

41266

American (AMR)

AF:

0.000915

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00270

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00189

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00442

AC:

300

AN:

67812

Other (OTH)

AF:

0.00237

AC:

AN:

2110

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.284

Heterozygous variant carriers

126

158

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:

0.00280

Hom.:

ExAC

AF:

0.00405

AC:

106

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:5

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:4

Dec 22, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Nov 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

NEB: BP4, BS2 -

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Nemaline myopathy 2

Uncertain:2

Dec 15, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nov 11, 2019

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

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.015

.;T;.;.;.

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.60

FATHMM_MKL

Benign

0.18

LIST_S2

Uncertain

0.90

D;T;D;.;.

M_CAP

Benign

0.013

MetaRNN

Benign

0.021

T;T;T;T;T

MetaSVM

Benign

-0.83

PhyloP100

-0.85

PROVEAN

Benign

-0.61

N;.;N;.;.

REVEL

Benign

0.095

Sift

Benign

0.13

T;.;T;.;.

Sift4G

Pathogenic

0.0

D;D;D;D;D

Vest4

0.32

MVP

0.62

MPC

0.29

ClinPred

0.028

GERP RS

0.82

gMVP

0.016

Mutation Taster

=93/7

polymorphism

(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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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