chr2-151633887-T-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_001164507.2(NEB):c.9181A>T(p.Met3061Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00027 in 1,613,996 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0015 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00014 ( 0 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:3

Conservation

PhyloP100: -0.0960

Publications

0 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 -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.013075799).

BP6

Variant 2-151633887-T-A is Benign according to our data. Variant chr2-151633887-T-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 450097.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00149 (227/152292) while in subpopulation AFR AF = 0.0052 (216/41562). AF 95% confidence interval is 0.00463. There are 1 homozygotes in GnomAd4. There are 121 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.9181A>T	p.Met3061Leu	missense_variant	Exon 65 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.9181A>T	p.Met3061Leu	missense_variant	Exon 65 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.9181A>T	p.Met3061Leu	missense_variant	Exon 65 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.9181A>T	p.Met3061Leu	missense_variant	Exon 65 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000409198.5 link	c.8854-2709A>T		intron_variant	Intron 62 of 149	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00143

AC:

217

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00495

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000956

GnomAD2 exomes

AF:

0.000341

AC:

AN:

249256

AF XY:

0.000266

show subpopulations

Gnomad AFR exome

AF:

0.00471

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000143

AC:

209

AN:

1461704

Hom.:

Cov.:

115

AF XY:

0.000132

AC XY:

AN XY:

727134

show subpopulations

African (AFR)

AF:

0.00493

AC:

165

AN:

33480

American (AMR)

AF:

0.000246

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111862

Other (OTH)

AF:

0.000398

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.00149

AC:

227

AN:

152292

Hom.:

Cov.:

AF XY:

0.00162

AC XY:

121

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.00520

AC:

216

AN:

41562

American (AMR)

AF:

0.000523

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68020

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

Heterozygous variant carriers

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:

0.000812

Hom.:

Bravo

AF:

0.00145

ESP6500AA

AF:

0.00361

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000389

AC:

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Aug 07, 2019

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 21, 2018

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jul 20, 2018

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Nemaline myopathy 2

Uncertain:1Benign:1

Jan 17, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Dec 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

NEB-related disorder

Benign:1

Jun 08, 2020

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.41

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Benign

0.023

.;T;.;.;.

Eigen

Benign

0.12

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.80

T;T;T;.;.

M_CAP

Benign

0.017

MetaRNN

Benign

0.013

T;T;T;T;T

MetaSVM

Benign

-1.0

PhyloP100

-0.096

PROVEAN

Benign

-0.98

N;.;N;.;.

REVEL

Benign

0.087

Sift

Benign

0.090

T;.;T;.;.

Sift4G

Uncertain

0.019

D;D;D;D;D

Vest4

0.29

MutPred

0.48

Loss of catalytic residue at M3061 (P = 0.0109);Loss of catalytic residue at M3061 (P = 0.0109);Loss of catalytic residue at M3061 (P = 0.0109);Loss of catalytic residue at M3061 (P = 0.0109);Loss of catalytic residue at M3061 (P = 0.0109);

MVP

0.36

MPC

0.050

ClinPred

0.041

GERP RS

6.0

gMVP

0.019

Mutation Taster

=84/16

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