rs80320923

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001164508.2(NEB):​c.11769T>C​(p.Ile3923Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00154 in 1,613,844 control chromosomes in the GnomAD database, including 33 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0083 ( 17 hom., cov: 32)
Exomes 𝑓: 0.00083 ( 16 hom. )

Consequence

NEB
NM_001164508.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.219
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.49).
BP6
Variant 2-151612222-A-G is Benign according to our data. Variant chr2-151612222-A-G is described in ClinVar as [Benign]. Clinvar id is 129708.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.219 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00828 (1261/152268) while in subpopulation AFR AF= 0.0289 (1202/41542). AF 95% confidence interval is 0.0276. There are 17 homozygotes in gnomad4. There are 590 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NEBNM_001164507.2 linkc.11769T>C p.Ile3923Ile synonymous_variant Exon 78 of 182 ENST00000427231.7 NP_001157979.2
NEBNM_001164508.2 linkc.11769T>C p.Ile3923Ile synonymous_variant Exon 78 of 182 ENST00000397345.8 NP_001157980.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NEBENST00000397345.8 linkc.11769T>C p.Ile3923Ile synonymous_variant Exon 78 of 182 5 NM_001164508.2 ENSP00000380505.3 P20929-2
NEBENST00000427231.7 linkc.11769T>C p.Ile3923Ile synonymous_variant Exon 78 of 182 5 NM_001164507.2 ENSP00000416578.2 P20929-3
NEBENST00000409198.5 linkc.11040T>C p.Ile3680Ile synonymous_variant Exon 75 of 150 5 ENSP00000386259.1 P20929-4

Frequencies

GnomAD3 genomes
AF:
0.00826
AC:
1257
AN:
152150
Hom.:
17
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0289
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00275
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:
0.000103
Gnomad OTH
AF:
0.00526
GnomAD3 exomes
AF:
0.00222
AC:
553
AN:
248900
Hom.:
7
AF XY:
0.00155
AC XY:
209
AN XY:
135022
show subpopulations
Gnomad AFR exome
AF:
0.0307
Gnomad AMR exome
AF:
0.00162
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:
0.0000710
Gnomad OTH exome
AF:
0.00215
GnomAD4 exome
AF:
0.000834
AC:
1219
AN:
1461576
Hom.:
16
Cov.:
31
AF XY:
0.000706
AC XY:
513
AN XY:
727082
show subpopulations
Gnomad4 AFR exome
AF:
0.0300
Gnomad4 AMR exome
AF:
0.00168
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000369
Gnomad4 OTH exome
AF:
0.00154
GnomAD4 genome
AF:
0.00828
AC:
1261
AN:
152268
Hom.:
17
Cov.:
32
AF XY:
0.00793
AC XY:
590
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.0289
Gnomad4 AMR
AF:
0.00268
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00520
Alfa
AF:
0.00651
Hom.:
85
Bravo
AF:
0.00946
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Nemaline myopathy 2 Benign:3
Jan 29, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Sep 16, 2020
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

not specified Benign:2
-
Genetic Services Laboratory, University of Chicago
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

Jan 19, 2017
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided Benign:2
Jun 11, 2018
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.49
CADD
Benign
6.0
DANN
Benign
0.73

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: rs80320923; hg19: chr2-152468736; API