rs368637389

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBP6

The NM_001164507.2(NEB):​c.8125G>A​(p.Val2709Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000044 in 1,613,688 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V2709G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

1
6
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 4.60

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13596165).
BP6
Variant 2-151643185-C-T is Benign according to our data. Variant chr2-151643185-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 566650.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEBNM_001164507.2 linkc.8125G>A p.Val2709Ile missense_variant Exon 58 of 182 ENST00000427231.7 NP_001157979.2
NEBNM_001164508.2 linkc.8125G>A p.Val2709Ile missense_variant Exon 58 of 182 ENST00000397345.8 NP_001157980.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEBENST00000397345.8 linkc.8125G>A p.Val2709Ile missense_variant Exon 58 of 182 5 NM_001164508.2 ENSP00000380505.3 P20929-2
NEBENST00000427231.7 linkc.8125G>A p.Val2709Ile missense_variant Exon 58 of 182 5 NM_001164507.2 ENSP00000416578.2 P20929-3
NEBENST00000409198.5 linkc.8125G>A p.Val2709Ile missense_variant Exon 58 of 150 5 ENSP00000386259.1 P20929-4

Frequencies

GnomAD3 genomes
AF:
0.000289
AC:
44
AN:
152140
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000402
AC:
10
AN:
249016
AF XY:
0.0000222
show subpopulations
Gnomad AFR exome
AF:
0.000517
Gnomad AMR exome
AF:
0.0000290
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:
0.000165
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461430
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
12
AN XY:
727012
show subpopulations
African (AFR)
AF:
0.000448
AC:
15
AN:
33466
American (AMR)
AF:
0.0000671
AC:
3
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39684
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86228
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53400
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5734
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111708
Other (OTH)
AF:
0.000133
AC:
8
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000296
AC:
45
AN:
152258
Hom.:
0
Cov.:
33
AF XY:
0.000322
AC XY:
24
AN XY:
74428
show subpopulations
African (AFR)
AF:
0.000987
AC:
41
AN:
41556
American (AMR)
AF:
0.000196
AC:
3
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68004
Other (OTH)
AF:
0.000473
AC:
1
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000154
Hom.:
0
Bravo
AF:
0.000215
ESP6500AA
AF:
0.000544
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000745
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Jun 04, 2019
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 13, 2022
Revvity Omics, Revvity
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nemaline myopathy 2 Uncertain:1Benign:1
Oct 15, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 11, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Inborn genetic diseases Uncertain:1
Oct 04, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.8125G>A (p.V2709I) alteration is located in exon 58 (coding exon 56) of the NEB gene. This alteration results from a G to A substitution at nucleotide position 8125, causing the valine (V) at amino acid position 2709 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.033
.;.;T;.;T;.;.
Eigen
Uncertain
0.55
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D;T;D;D;D;.;.
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.14
T;T;T;T;T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Uncertain
2.2
M;M;.;M;M;M;M
PhyloP100
4.6
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.46
N;N;.;N;N;.;.
REVEL
Benign
0.20
Sift
Benign
0.21
T;T;.;T;T;.;.
Sift4G
Uncertain
0.020
D;D;D;D;D;D;D
Polyphen
0.73
.;.;.;.;P;.;.
Vest4
0.28
MVP
0.52
MPC
0.20
ClinPred
0.12
T
GERP RS
5.9
Varity_R
0.081
gMVP
0.24
Mutation Taster
=72/28
polymorphism

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

Other links and lift over

dbSNP: rs368637389; hg19: chr2-152499699; API