rs150874422

Positions:

chr2-151538181-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001164508.2(NEB):c.20956G>C(p.Asp6986His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,613,136 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00051 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

NEB
NM_001164508.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:2

Conservation

PhyloP100: 2.53

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:

LOC124906081 (HGNC:):

LOC124906081 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.07032612).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NEB	NM_001164507.2 linkuse as main transcript	c.20956G>C	p.Asp6986His	missense_variant	139/182	ENST00000427231.7	NP_001157979.2
NEB	NM_001164508.2 linkuse as main transcript	c.20956G>C	p.Asp6986His	missense_variant	139/182	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.20956G>C	p.Asp6986His	missense_variant	139/182	5	NM_001164508.2	ENSP00000380505.3		P20929-2
NEB	ENST00000427231.7 linkuse as main transcript	c.20956G>C	p.Asp6986His	missense_variant	139/182	5	NM_001164507.2	ENSP00000416578.2		P20929-3

Frequencies

GnomAD3 genomes

AF:

0.000500

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00183

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000804

AC:

AN:

248860

Hom.:

AF XY:

0.0000593

AC XY:

AN XY:

134998

show subpopulations

Gnomad AFR exome

AF:

0.00123

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:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000329

AC:

AN:

1460866

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

726770

show subpopulations

Gnomad4 AFR exome

AF:

0.00120

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.000506

AC:

AN:

152270

Hom.:

Cov.:

AF XY:

0.000363

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.00185

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000378

Hom.:

Bravo

AF:

0.000582

ESP6500AA

AF:

0.00214

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000124

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jun 18, 2024	In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2023	- -

Nemaline myopathy 2

Uncertain:1Benign:1

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 31, 2024	- -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Jan 17, 2020	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 12, 2024

The c.15853G>C (p.D5285H) alteration is located in exon 112 (coding exon 110) of the NEB gene. This alteration results from a G to C substitution at nucleotide position 15853, causing the aspartic acid (D) at amino acid position 5285 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Nemaline myopathy 2;C5543431:Arthrogryposis multiplex congenita 6

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 08, 2021

- -

NEB-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Aug 28, 2023

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.67

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Uncertain

0.060

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.065

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

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

D;D;D;D;D;D;.;.;D

M_CAP

Uncertain

0.085

MetaRNN

Benign

0.070

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

MetaSVM

Benign

-0.97

MutationAssessor

Benign

0.81

L;.;.;.;L;.;.;.;.

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.3

D;D;.;D;D;D;.;.;D

REVEL

Benign

0.28

Sift

Benign

0.10

T;D;.;D;T;T;.;.;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;D;D;.

Polyphen

1.0

.;.;.;.;D;.;.;.;.

Vest4

0.70

MVP

0.52

MPC

0.37

ClinPred

0.28

GERP RS

5.7

Varity_R

0.44

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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