rs754959175

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_001164508.2(NEB):c.2215A>G(p.Thr739Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000293 in 1,570,172 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

NEB
NM_001164508.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 2.37

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 Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.15554714).

BP6

Variant 2-151690822-T-C is Benign according to our data. Variant chr2-151690822-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 567957.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEB	NM_001164507.2 link	c.2215A>G	p.Thr739Ala	missense_variant	Exon 24 of 182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 link	c.2215A>G	p.Thr739Ala	missense_variant	Exon 24 of 182	ENST00000397345.8	NP_001157980.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEB	ENST00000397345.8 link	c.2215A>G	p.Thr739Ala	missense_variant	Exon 24 of 182	5	NM_001164508.2	ENSP00000380505.3	P20929-2
NEB	ENST00000427231.7 link	c.2215A>G	p.Thr739Ala	missense_variant	Exon 24 of 182	5	NM_001164507.2	ENSP00000416578.2	P20929-3
NEB	ENST00000489048.1 link	n.1114A>G		non_coding_transcript_exon_variant	Exon 12 of 12	1
NEB	ENST00000409198.5 link	c.2215A>G	p.Thr739Ala	missense_variant	Exon 24 of 150	5		ENSP00000386259.1	P20929-4

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000205

AC:

AN:

195166

Hom.:

AF XY:

0.00

AC XY:

AN XY:

103568

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000479

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000247

AC:

AN:

1417996

Hom.:

Cov.:

AF XY:

0.0000214

AC XY:

AN XY:

702370

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000295

Gnomad4 OTH exome

AF:

0.0000510

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.0000965

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000167

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Nemaline myopathy 2

Uncertain:1Benign:1

Jan 06, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely 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 06, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2215A>G (p.T739A) alteration is located in exon 24 (coding exon 22) of the NEB gene. This alteration results from a A to G substitution at nucleotide position 2215, causing the threonine (T) at amino acid position 739 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Mar 21, 2022

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.030

.;.;T;.;T;.;.

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.12

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.71

T;T;T;T;T;.;.

M_CAP

Benign

0.0083

MetaRNN

Benign

0.16

T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.1

M;M;.;M;M;M;M

PrimateAI

Benign

0.45

PROVEAN

Benign

-1.4

N;N;.;N;N;.;.

REVEL

Benign

0.18

Sift

Benign

0.42

T;T;.;T;T;.;.

Sift4G

Benign

0.084

T;D;D;D;T;D;D

Polyphen

0.0

.;.;.;.;B;.;.

Vest4

0.28

MVP

0.31

MPC

0.055

ClinPred

0.14

GERP RS

5.0

Varity_R

0.10

gMVP

0.13

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.

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