chr2-151733145-G-A

Position:

chr2-151733145-G-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6BP7BS1BS2_Supporting

The NM_001164508.2(NEB):c.12C>T(p.Asp4=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000788 in 1,603,876 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00075 ( 2 hom. )

Consequence

NEB
NM_001164508.2 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7

Conservation

PhyloP100: -0.404

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.4).

BP6

Variant 2-151733145-G-A is Benign according to our data. Variant chr2-151733145-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 95107.We mark this variant Likely_benign, oryginal submissions are: {Benign=4, Likely_benign=1, Uncertain_significance=1}.

BP7

Synonymous conserved (PhyloP=-0.404 with no splicing effect.

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00112 (169/151524) while in subpopulation EAS AF= 0.00969 (50/5162). AF 95% confidence interval is 0.00755. There are 1 homozygotes in gnomad4. There are 80 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NEB	NM_001164507.2 linkuse as main transcript	c.12C>T	p.Asp4=	synonymous_variant	3/182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 linkuse as main transcript	c.12C>T	p.Asp4=	synonymous_variant	3/182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NEB	ENST00000397345.8 linkuse as main transcript	c.12C>T	p.Asp4=	synonymous_variant	3/182	5	NM_001164508.2	ENSP00000380505	P5	P20929-2
NEB	ENST00000427231.7 linkuse as main transcript	c.12C>T	p.Asp4=	synonymous_variant	3/182	5	NM_001164507.2	ENSP00000416578	A2	P20929-3
NEB	ENST00000409198.5 linkuse as main transcript	c.12C>T	p.Asp4=	synonymous_variant	3/150	5		ENSP00000386259		P20929-4

Frequencies

GnomAD3 genomes

AF:

0.00112

AC:

169

AN:

151408

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00119

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000461

Gnomad ASJ

AF:

0.00895

Gnomad EAS

AF:

0.00966

Gnomad SAS

AF:

0.00270

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000265

Gnomad OTH

AF:

0.000481

GnomAD3 exomes

AF:

0.00142

AC:

337

AN:

236506

Hom.:

AF XY:

0.00122

AC XY:

156

AN XY:

127856

show subpopulations

Gnomad AFR exome

AF:

0.00135

Gnomad AMR exome

AF:

0.00134

Gnomad ASJ exome

AF:

0.00715

Gnomad EAS exome

AF:

0.00787

Gnomad SAS exome

AF:

0.00116

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000253

Gnomad OTH exome

AF:

0.000870

GnomAD4 exome

AF:

0.000754

AC:

1095

AN:

1452352

Hom.:

Cov.:

AF XY:

0.000754

AC XY:

544

AN XY:

721694

show subpopulations

Gnomad4 AFR exome

AF:

0.00108

Gnomad4 AMR exome

AF:

0.00127

Gnomad4 ASJ exome

AF:

0.00698

Gnomad4 EAS exome

AF:

0.00807

Gnomad4 SAS exome

AF:

0.00128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000278

Gnomad4 OTH exome

AF:

0.00143

GnomAD4 genome

AF:

0.00112

AC:

169

AN:

151524

Hom.:

Cov.:

AF XY:

0.00108

AC XY:

AN XY:

74004

show subpopulations

Gnomad4 AFR

AF:

0.00119

Gnomad4 AMR

AF:

0.000460

Gnomad4 ASJ

AF:

0.00895

Gnomad4 EAS

AF:

0.00969

Gnomad4 SAS

AF:

0.00271

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000265

Gnomad4 OTH

AF:

0.000476

Alfa

AF:

0.00107

Hom.:

Bravo

AF:

0.00128

Asia WGS

AF:

0.00636

AC:

AN:

3474

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:7

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2024	NEB: BP4, BP7 -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Feb 20, 2014	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 13, 2020	- -

Nemaline myopathy 2

Benign:3

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Feb 01, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
Likely benign, no assertion criteria provided	clinical testing	Natera, Inc.	Jun 24, 2020	- -

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	May 03, 2017	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.40

CADD

Benign

7.0

DANN

Benign

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over