rs747564597

Variant summary

Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_001164507.2(NEB):​c.24267_24270delAAGA​(p.Arg8090SerfsTer54) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000394 in 152,122 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. E8089E) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000043 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

NEB
NM_001164507.2 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:6

Conservation

PhyloP100: 5.19

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]
RIF1 (HGNC:23207): (replication timing regulatory factor 1) This gene encodes a protein that shares homology with the yeast teleomere binding protein, Rap1 interacting factor 1. This protein localizes to aberrant telomeres may be involved in DNA repair. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 16 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PP5
Variant 2-151497655-CTCTT-C is Pathogenic according to our data. Variant chr2-151497655-CTCTT-C is described in ClinVar as [Pathogenic]. Clinvar id is 552268.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEBNM_001164507.2 linkc.24267_24270delAAGA p.Arg8090SerfsTer54 frameshift_variant Exon 171 of 182 ENST00000427231.7 NP_001157979.2
NEBNM_001164508.2 linkc.24267_24270delAAGA p.Arg8090SerfsTer54 frameshift_variant Exon 171 of 182 ENST00000397345.8 NP_001157980.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEBENST00000397345.8 linkc.24267_24270delAAGA p.Arg8090SerfsTer54 frameshift_variant Exon 171 of 182 5 NM_001164508.2 ENSP00000380505.3 P20929-2
NEBENST00000427231.7 linkc.24267_24270delAAGA p.Arg8090SerfsTer54 frameshift_variant Exon 171 of 182 5 NM_001164507.2 ENSP00000416578.2 P20929-3

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000973
AC:
2
AN:
205580
AF XY:
0.00000911
show subpopulations
Gnomad AFR exome
AF:
0.0000753
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:
0.0000114
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000426
AC:
61
AN:
1430800
Hom.:
0
AF XY:
0.0000367
AC XY:
26
AN XY:
708426
show subpopulations
African (AFR)
AF:
0.0000605
AC:
2
AN:
33082
American (AMR)
AF:
0.00
AC:
0
AN:
40228
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25710
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38920
South Asian (SAS)
AF:
0.0000122
AC:
1
AN:
82016
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51706
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5732
European-Non Finnish (NFE)
AF:
0.0000530
AC:
58
AN:
1094190
Other (OTH)
AF:
0.00
AC:
0
AN:
59216
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000394
AC:
6
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74296
show subpopulations
African (AFR)
AF:
0.000121
AC:
5
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10598
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.000108
Hom.:
0
Bravo
AF:
0.0000642

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Nemaline myopathy 2 Pathogenic:3
Nov 05, 2020
Natera, Inc.
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 10, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg8125Serfs*54) in the NEB gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in NEB are known to be pathogenic (PMID: 25205138). This variant is present in population databases (rs747564597, gnomAD 0.009%). This premature translational stop signal has been observed in individual(s) with nemaline myopathy (PMID: 25205138, 26197980). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 552268). For these reasons, this variant has been classified as Pathogenic. -

Jun 21, 2017
Counsyl
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

NEB-related disorder Pathogenic:1
Mar 20, 2024
PreventionGenetics, part of Exact Sciences
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:clinical testing

The NEB c.24372_24375delAAGA variant is predicted to result in a frameshift and premature protein termination (p.Arg8125Serfs*54). This variant was reported in individuals with nemaline myopathy (Supp. Table S1 in Lehtokari et al 2014. PubMed ID: 25205138; Kiiski et al. 2015. PubMed ID: 26197980). This variant is reported in 0.0091% of alleles in individuals of African descent in gnomAD. Frameshift variants in NEB are expected to be pathogenic. This variant is interpreted as pathogenic. -

Arthrogryposis multiplex congenita 6 Pathogenic:1
Mar 12, 2024
Baylor Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nemaline myopathy 2;C5543431:Arthrogryposis multiplex congenita 6 Pathogenic:1
May 07, 2021
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:research

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
5.2
Mutation Taster
=2/198
disease causing (ClinVar)

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: rs747564597; hg19: chr2-152354169; API