Genetic Variant NEB:p.Asp6986Asn (chr2-151538181-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001164508.2(NEB):c.20956G>A(p.Asp6986Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NEB
NM_001164508.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.53

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 links:

LOC124906081 (HGNC:):

LOC124906081 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.35831118).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.20956G>A	p.Asp6986Asn	missense_variant	Exon 139 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.20956G>A	p.Asp6986Asn	missense_variant	Exon 139 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEB	ENST00000397345.8 link	c.20956G>A	p.Asp6986Asn	missense_variant	Exon 139 of 182	5	NM_001164508.2	ENSP00000380505.3		P20929-2
NEB	ENST00000427231.7 link	c.20956G>A	p.Asp6986Asn	missense_variant	Exon 139 of 182	5	NM_001164507.2	ENSP00000416578.2		P20929-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460868

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726772

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.27

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.066

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

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.92

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

M_CAP

Benign

0.045

MetaRNN

Benign

0.36

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

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.81

L;.;.;.;L;.;.;.;.

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-2.4

N;N;.;N;N;N;.;.;N

REVEL

Benign

0.18

Sift

Benign

0.081

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

Sift4G

Pathogenic

0.0

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

Polyphen

1.0

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

Vest4

0.40

MutPred

0.45

Gain of MoRF binding (P = 0.0342);.;.;.;Gain of MoRF binding (P = 0.0342);.;.;.;.;

MVP

0.41

MPC

0.22

ClinPred

0.91

GERP RS

5.7

Varity_R

0.26

gMVP

0.37

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over