Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001164507.2(NEB):c.25163G>A(p.Arg8388His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000418 in 1,608,998 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts 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. R8388C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00025 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00044 ( 10 hom. )

Consequence

NEB
NM_001164507.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 7.51

Publications

6 publications found

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:

RIF1 (HGNC:23207): (replication timing regulatory factor 1) This gene encodes a protein that shares homology with the yeast teleomere binding protein, Rap1 interacting factor 1. This protein localizes to aberrant telomeres may be involved in DNA repair. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Apr 2010]

RIF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.030132711).

BP6

Variant 2-151490506-C-T is Benign according to our data. Variant chr2-151490506-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465588.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000249 (38/152312) while in subpopulation EAS AF = 0.00656 (34/5182). AF 95% confidence interval is 0.00483. There are 1 homozygotes in GnomAd4. There are 23 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 10 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164507.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NEB	NM_001164507.2	MANE Plus Clinical	c.25163G>A	p.Arg8388His	missense	Exon 180 of 182	NP_001157979.2
NEB	NM_001164508.2	MANE Select	c.25163G>A	p.Arg8388His	missense	Exon 180 of 182	NP_001157980.2
NEB	NM_001271208.2		c.25268G>A	p.Arg8423His	missense	Exon 181 of 183	NP_001258137.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NEB	ENST00000397345.8	TSL:5 MANE Select	c.25163G>A	p.Arg8388His	missense	Exon 180 of 182	ENSP00000380505.3
NEB	ENST00000427231.7	TSL:5 MANE Plus Clinical	c.25163G>A	p.Arg8388His	missense	Exon 180 of 182	ENSP00000416578.2
RIF1	ENST00000457745.1	TSL:1	n.480+3750C>T		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.000250

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00655

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000790

AC:

AN:

240404

AF XY:

0.0000615

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000296

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000850

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000276

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000435

AC:

634

AN:

1456686

Hom.:

Cov.:

AF XY:

0.000420

AC XY:

304

AN XY:

723844

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33410

American (AMR)

AF:

0.00

AC:

AN:

44240

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25936

East Asian (EAS)

AF:

0.0149

AC:

589

AN:

39556

South Asian (SAS)

AF:

0.00

AC:

AN:

84736

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53134

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000315

AC:

AN:

1109710

Other (OTH)

AF:

0.000149

AC:

AN:

60204

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

130

163

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000249

AC:

AN:

152312

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41576

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00656

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000386

Hom.:

Bravo

AF:

0.0000642

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000119

AC:

ExAC

AF:

0.000108

AC:

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Nemaline myopathy 2 (3)

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.036

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.039

MetaRNN

Benign

0.030

MetaSVM

Benign

-1.2

MutationAssessor

Benign

1.7

PhyloP100

7.5

PrimateAI

Uncertain

0.66

PROVEAN

Uncertain

-2.8

REVEL

Benign

0.27

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0070

Polyphen

0.97

Vest4

0.54

MVP

0.60

MPC

0.34

ClinPred

0.71

GERP RS

5.4

Varity_R

0.65

gMVP

0.59

Mutation Taster

=66/34

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over