2-151666286-C-T

Variant summary

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

The NM_001164507.2(NEB):c.4835G>A(p.Arg1612His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,902 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1612C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 3.02

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=0.15701237).

BP6

Variant 2-151666286-C-T is Benign according to our data. Variant chr2-151666286-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 290870.We mark this variant Likely_benign, oryginal submissions are: {Benign=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEB	NM_001164507.2 linkuse as main transcript	c.4835G>A	p.Arg1612His	missense_variant	41/182	ENST00000427231.7
NEB	NM_001164508.2 linkuse as main transcript	c.4835G>A	p.Arg1612His	missense_variant	41/182	ENST00000397345.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NEB	ENST00000397345.8 linkuse as main transcript	c.4835G>A	p.Arg1612His	missense_variant	41/182	5	NM_001164508.2	P5	P20929-2
NEB	ENST00000427231.7 linkuse as main transcript	c.4835G>A	p.Arg1612His	missense_variant	41/182	5	NM_001164507.2	A2	P20929-3
NEB	ENST00000409198.5 linkuse as main transcript	c.4835G>A	p.Arg1612His	missense_variant	41/150	5			P20929-4

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152116

Hom.:

Cov.:

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:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000241

AC:

AN:

249140

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135144

show subpopulations

Gnomad AFR exome

AF:

0.000194

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000889

AC:

AN:

1461668

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727124

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74434

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000264

ExAC

AF:

0.0000248

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 04, 2023

The c.4835G>A (p.R1612H) alteration is located in exon 41 (coding exon 39) of the NEB gene. This alteration results from a G to A substitution at nucleotide position 4835, causing the arginine (R) at amino acid position 1612 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Aug 25, 2016

- -

Nemaline myopathy 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 21, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.41

Cadd

Benign

Dann

Uncertain

1.0

Eigen

Benign

0.048

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.93

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

M_CAP

Benign

0.036

MetaRNN

Benign

0.16

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

MetaSVM

Benign

-0.81

MutationAssessor

Pathogenic

3.3

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

MutationTaster

Benign

1.0

D;D;N;N

PrimateAI

Benign

0.47

PROVEAN

Benign

-2.1

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

REVEL

Benign

0.15

Sift

Uncertain

0.022

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

Sift4G

Uncertain

0.0030

D;D;D;D;D;D;D

Polyphen

0.075

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

Vest4

0.33

MutPred

0.50

Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);

MVP

0.59

MPC

0.082

ClinPred

0.75

GERP RS

4.9

Varity_R

0.19

gMVP

0.20

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