chr2-151697205-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001164507.2(NEB):c.1413C>T(p.Phe471Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000777 in 1,613,746 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0033 ( 3 hom., cov: 33)

Exomes 𝑓: 0.00051 ( 5 hom. )

Consequence

NEB
NM_001164507.2 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts U:1B:6

Conservation

PhyloP100: 2.53

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: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.44).

BP6

Variant 2-151697205-G-A is Benign according to our data. Variant chr2-151697205-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 167341.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=2.53 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00335 (510/152316) while in subpopulation AFR AF = 0.0113 (470/41580). AF 95% confidence interval is 0.0105. There are 3 homozygotes in GnomAd4. There are 244 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 3 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.1413C>T	p.Phe471Phe	synonymous_variant	Exon 16 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.1413C>T	p.Phe471Phe	synonymous_variant	Exon 16 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.1413C>T	p.Phe471Phe	synonymous_variant	Exon 16 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.1413C>T	p.Phe471Phe	synonymous_variant	Exon 16 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000489048.1 link	n.312C>T		non_coding_transcript_exon_variant	Exon 4 of 12	1
NEB	ENST00000409198.5 link	c.1413C>T	p.Phe471Phe	synonymous_variant	Exon 16 of 150	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00334

AC:

508

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0113

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.00574

GnomAD2 exomes

AF:

0.00104

AC:

258

AN:

248836

AF XY:

0.000874

show subpopulations

Gnomad AFR exome

AF:

0.0135

Gnomad AMR exome

AF:

0.000869

Gnomad ASJ exome

AF:

0.0000994

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000124

Gnomad OTH exome

AF:

0.000662

GnomAD4 exome

AF:

0.000509

AC:

744

AN:

1461430

Hom.:

Cov.:

AF XY:

0.000462

AC XY:

336

AN XY:

726990

show subpopulations

African (AFR)

AF:

0.0137

AC:

460

AN:

33474

American (AMR)

AF:

0.000805

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.000230

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53194

Middle Eastern (MID)

AF:

0.00485

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000123

AC:

137

AN:

1111834

Other (OTH)

AF:

0.00118

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

113

150

188

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome 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

GnomAD4 genome

AF:

0.00335

AC:

510

AN:

152316

Hom.:

Cov.:

AF XY:

0.00328

AC XY:

244

AN XY:

74468

show subpopulations

African (AFR)

AF:

0.0113

AC:

470

AN:

41580

American (AMR)

AF:

0.00111

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000147

AC:

AN:

68034

Other (OTH)

AF:

0.00568

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

103

129

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:

0.00249

Hom.:

Bravo

AF:

0.00368

Asia WGS

AF:

0.00144

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Benign/Likely benign

Submissions summary: Uncertain:1Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Nemaline myopathy 2

Uncertain:1Benign:2

Jan 17, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jan 12, 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. -

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:2

Jan 27, 2014

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:2

Nov 12, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

-0.44

CADD

Benign

9.5

(source)

DANN

Benign

0.76

PhyloP100

2.5

Mutation Taster

=99/1

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