rs767042929

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001164508.2(NEB):​c.9542A>G​(p.Asp3181Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,686 control chromosomes in the GnomAD database, with no homozygous occurrence. 10/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

NEB
NM_001164508.2 missense

Scores

6
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.32
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEBNM_001164507.2 linkc.9542A>G p.Asp3181Gly missense_variant Exon 66 of 182 ENST00000427231.7 NP_001157979.2
NEBNM_001164508.2 linkc.9542A>G p.Asp3181Gly missense_variant Exon 66 of 182 ENST00000397345.8 NP_001157980.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEBENST00000397345.8 linkc.9542A>G p.Asp3181Gly missense_variant Exon 66 of 182 5 NM_001164508.2 ENSP00000380505.3 P20929-2
NEBENST00000427231.7 linkc.9542A>G p.Asp3181Gly missense_variant Exon 66 of 182 5 NM_001164507.2 ENSP00000416578.2 P20929-3
NEBENST00000409198.5 linkc.8854-41A>G intron_variant Intron 62 of 149 5 ENSP00000386259.1 P20929-4

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000241
AC:
6
AN:
249230
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135210
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000342
AC:
5
AN:
1461686
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727132
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000112
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Nemaline myopathy 2 Uncertain:1
Aug 12, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 3181 of the NEB protein (p.Asp3181Gly). This variant is present in population databases (rs767042929, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with NEB-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Not Available"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
21
DANN
Benign
0.75
DEOGEN2
Benign
0.035
.;T;.;.;.
Eigen
Uncertain
0.30
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.91
D;D;D;.;.
M_CAP
Benign
0.034
D
MetaRNN
Uncertain
0.56
D;D;D;D;D
MetaSVM
Benign
-1.1
T
PROVEAN
Benign
-1.6
N;.;N;.;.
REVEL
Benign
0.15
Sift
Benign
0.035
D;.;D;.;.
Sift4G
Uncertain
0.049
D;D;T;D;T
Vest4
0.59
MutPred
0.39
Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);Gain of helix (P = 0.0696);
MVP
0.56
MPC
0.20
ClinPred
0.21
T
GERP RS
5.9
gMVP
0.11

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs767042929; hg19: chr2-152487733; API