2-151658007-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001164507.2(NEB):c.6159G>A(p.Lys2053Lys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00916 in 1,609,240 control chromosomes in the GnomAD database, including 80 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0084 ( 5 hom., cov: 32)

Exomes 𝑓: 0.0092 ( 75 hom. )

Consequence

NEB
NM_001164507.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.0320

Publications

4 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 -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.49).

BP6

Variant 2-151658007-C-T is Benign according to our data. Variant chr2-151658007-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 129754.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.032 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00845 (1286/152268) while in subpopulation AMR AF = 0.0143 (218/15264). AF 95% confidence interval is 0.0127. There are 5 homozygotes in GnomAd4. There are 589 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.6159G>A	p.Lys2053Lys	synonymous_variant	Exon 48 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.6159G>A	p.Lys2053Lys	synonymous_variant	Exon 48 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.6159G>A	p.Lys2053Lys	synonymous_variant	Exon 48 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.6159G>A	p.Lys2053Lys	synonymous_variant	Exon 48 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000409198.5 link	c.6159G>A	p.Lys2053Lys	synonymous_variant	Exon 48 of 150	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00845

AC:

1285

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00256

Gnomad AMI

AF:

0.00658

Gnomad AMR

AF:

0.0144

Gnomad ASJ

AF:

0.0158

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00455

Gnomad FIN

AF:

0.00207

Gnomad MID

AF:

0.0190

Gnomad NFE

AF:

0.0121

Gnomad OTH

AF:

0.0129

GnomAD2 exomes

AF:

0.00780

AC:

1915

AN:

245622

AF XY:

0.00808

show subpopulations

Gnomad AFR exome

AF:

0.00230

Gnomad AMR exome

AF:

0.00778

Gnomad ASJ exome

AF:

0.0159

Gnomad EAS exome

AF:

0.0000562

Gnomad FIN exome

AF:

0.00276

Gnomad NFE exome

AF:

0.0111

Gnomad OTH exome

AF:

0.0121

GnomAD4 exome

AF:

0.00923

AC:

13449

AN:

1456972

Hom.:

Cov.:

AF XY:

0.00921

AC XY:

6677

AN XY:

724694

show subpopulations

African (AFR)

AF:

0.00162

AC:

AN:

33362

American (AMR)

AF:

0.00833

AC:

370

AN:

44430

Ashkenazi Jewish (ASJ)

AF:

0.0157

AC:

408

AN:

26034

East Asian (EAS)

AF:

0.0000505

AC:

AN:

39626

South Asian (SAS)

AF:

0.00335

AC:

287

AN:

85598

European-Finnish (FIN)

AF:

0.00314

AC:

167

AN:

53240

Middle Eastern (MID)

AF:

0.0200

AC:

115

AN:

5750

European-Non Finnish (NFE)

AF:

0.0104

AC:

11535

AN:

1108764

Other (OTH)

AF:

0.00849

AC:

511

AN:

60168

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

602

1204

1807

2409

3011

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

398

796

1194

1592

1990

<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:

0.00845

AC:

1286

AN:

152268

Hom.:

Cov.:

AF XY:

0.00791

AC XY:

589

AN XY:

74428

show subpopulations

African (AFR)

AF:

0.00255

AC:

106

AN:

41572

American (AMR)

AF:

0.0143

AC:

218

AN:

15264

Ashkenazi Jewish (ASJ)

AF:

0.0158

AC:

AN:

3472

East Asian (EAS)

AF:

0.000386

AC:

AN:

5180

South Asian (SAS)

AF:

0.00477

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00207

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.0204

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0121

AC:

821

AN:

68020

Other (OTH)

AF:

0.0128

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

127

190

254

317

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<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:

0.0108

Hom.:

Bravo

AF:

0.00876

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Jun 22, 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. -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Nemaline myopathy 2

Benign:3

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Likely 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Sep 16, 2020

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Apr 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

NEB: BP4, BP7, BS1, BS2 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

3.5

(source)

DANN

Benign

0.64

PhyloP100

-0.032

Mutation Taster

=100/0

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