rs77151072

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001164507.2(NEB):c.2318A>G(p.Tyr773Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00193 in 1,613,216 control chromosomes in the GnomAD database, including 77 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0024 ( 14 hom., cov: 32)

Exomes 𝑓: 0.0019 ( 63 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 6.21

Publications

7 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0075781643).

BP6

Variant 2-151688389-T-C is Benign according to our data. Variant chr2-151688389-T-C is described in ClinVar as Benign. ClinVar VariationId is 257795.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.057 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.2318A>G	p.Tyr773Cys	missense_variant	Exon 25 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.2318A>G	p.Tyr773Cys	missense_variant	Exon 25 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.2318A>G	p.Tyr773Cys	missense_variant	Exon 25 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.2318A>G	p.Tyr773Cys	missense_variant	Exon 25 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000409198.5 link	c.2318A>G	p.Tyr773Cys	missense_variant	Exon 25 of 150	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00242

AC:

368

AN:

152260

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0625

Gnomad SAS

AF:

0.00352

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00382

GnomAD2 exomes

AF:

0.00501

AC:

1246

AN:

248634

AF XY:

0.00456

show subpopulations

Gnomad AFR exome

AF:

0.000194

Gnomad AMR exome

AF:

0.000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0635

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000151

Gnomad OTH exome

AF:

0.00365

GnomAD4 exome

AF:

0.00188

AC:

2749

AN:

1460838

Hom.:

Cov.:

AF XY:

0.00193

AC XY:

1406

AN XY:

726750

show subpopulations

African (AFR)

AF:

0.000269

AC:

AN:

33468

American (AMR)

AF:

0.000224

AC:

AN:

44698

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.0538

AC:

2135

AN:

39662

South Asian (SAS)

AF:

0.00244

AC:

210

AN:

86188

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53354

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000115

AC:

128

AN:

1111250

Other (OTH)

AF:

0.00423

AC:

255

AN:

60336

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.472

Heterozygous variant carriers

125

249

374

498

623

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

132

176

220

<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:

0.00242

AC:

369

AN:

152378

Hom.:

Cov.:

AF XY:

0.00275

AC XY:

205

AN XY:

74516

show subpopulations

African (AFR)

AF:

0.0000962

AC:

AN:

41584

American (AMR)

AF:

0.000327

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.0626

AC:

325

AN:

5190

South Asian (SAS)

AF:

0.00352

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68040

Other (OTH)

AF:

0.00426

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00192

Hom.:

Bravo

AF:

0.00255

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000122

AC:

ExAC

AF:

0.00502

AC:

606

Asia WGS

AF:

0.0380

AC:

133

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000594

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 28, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 17, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Nemaline myopathy 2

Benign:3

Sep 16, 2020

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.77

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.090

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.21

.;.;T;.;D;.;.

Eigen

Pathogenic

0.78

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D;D;D;D;.;.

MetaRNN

Benign

0.0076

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

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.8

M;M;.;M;M;M;M

PhyloP100

6.2

PrimateAI

Uncertain

0.73

PROVEAN

Uncertain

-3.3

D;D;.;D;D;.;.

REVEL

Uncertain

0.40

Sift

Uncertain

0.0020

D;D;.;D;D;.;.

Sift4G

Pathogenic

0.0010

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

Polyphen

1.0

.;.;.;.;D;.;.

Vest4

0.85

MVP

0.55

MPC

0.37

ClinPred

0.038

GERP RS

5.7

Varity_R

0.25

gMVP

0.70

Mutation Taster

=91/9

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