2-151662138-G-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001164507.2(NEB):c.5967C>G(p.Asn1989Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,456,892 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N1989N) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.18

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: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.5967C>G	p.Asn1989Lys	missense_variant	Exon 46 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.5967C>G	p.Asn1989Lys	missense_variant	Exon 46 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.5967C>G	p.Asn1989Lys	missense_variant	Exon 46 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.5967C>G	p.Asn1989Lys	missense_variant	Exon 46 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000409198.5 link	c.5967C>G	p.Asn1989Lys	missense_variant	Exon 46 of 150	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000404

AC:

AN:

247428

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1456892

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724676

show subpopulations

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

African (AFR)

AF:

0.00

AC:

AN:

33334

American (AMR)

AF:

0.00

AC:

AN:

44570

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26050

East Asian (EAS)

AF:

0.00

AC:

AN:

39660

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85782

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53292

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5744

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1108288

Other (OTH)

AF:

0.00

AC:

AN:

60172

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.56

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

.;.;T;.;T;.;.

Eigen

Benign

0.12

Eigen_PC

Benign

0.028

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.92

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

M_CAP

Benign

0.072

MetaRNN

Pathogenic

0.90

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

MetaSVM

Benign

-0.69

MutationAssessor

Uncertain

2.3

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

PhyloP100

2.2

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.5

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

REVEL

Benign

0.28

Sift

Uncertain

0.012

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

Sift4G

Uncertain

0.0040

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

Polyphen

0.97

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

Vest4

0.59

MutPred

0.77

Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);Gain of ubiquitination at N1989 (P = 0.0289);

MVP

0.58

MPC

0.31

ClinPred

0.90

GERP RS

2.1

Varity_R

0.26

gMVP

0.63

Mutation Taster

=77/23

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over