chr7-157409809-G-A

Variant names:

Variant summary

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

The NM_058246.4(DNAJB6):c.706G>A(p.Asp236Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000411 in 1,528,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. D236G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00044 ( 0 hom. )

Consequence

DNAJB6
NM_058246.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 0.641

Publications

2 publications found

Variant links:

Genes affected

DNAJB6 (HGNC:14888): (DnaJ heat shock protein family (Hsp40) member B6) This gene encodes a member of the DNAJ protein family. DNAJ family members are characterized by a highly conserved amino acid stretch called the 'J-domain' and function as one of the two major classes of molecular chaperones involved in a wide range of cellular events, such as protein folding and oligomeric protein complex assembly. This family member may also play a role in polyglutamine aggregation in specific neurons. Alternative splicing of this gene results in multiple transcript variants; however, not all variants have been fully described. [provided by RefSeq, Jul 2008]

DNAJB6 Gene-Disease associations (from GenCC):

muscular dystrophy, limb-girdle, autosomal dominant
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6)
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

DNAJB6 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=0.01799947).

BP6

Variant 7-157409809-G-A is Benign according to our data. Variant chr7-157409809-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 288876.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000184 (28/152306) while in subpopulation SAS AF = 0.000621 (3/4830). AF 95% confidence interval is 0.000194. There are 0 homozygotes in GnomAd4. There are 15 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.

BS2

High AC in GnomAd4 at 28 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAJB6	NM_058246.4 link	c.706G>A	p.Asp236Asn	missense_variant	Exon 9 of 10	ENST00000262177.9	NP_490647.1	O75190-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAJB6	ENST00000262177.9 link	c.706G>A	p.Asp236Asn	missense_variant	Exon 9 of 10	1	NM_058246.4	ENSP00000262177.4		O75190-1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000286

AC:

AN:

129282

AF XY:

0.000411

show subpopulations

Gnomad AFR exome

AF:

0.000158

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000357

Gnomad OTH exome

AF:

0.000250

GnomAD4 exome

AF:

0.000436

AC:

600

AN:

1376136

Hom.:

Cov.:

AF XY:

0.000416

AC XY:

282

AN XY:

677818

show subpopulations

African (AFR)

AF:

0.0000642

AC:

AN:

31168

American (AMR)

AF:

0.00

AC:

AN:

35392

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24994

East Asian (EAS)

AF:

0.00

AC:

AN:

35410

South Asian (SAS)

AF:

0.000635

AC:

AN:

78778

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35458

Middle Eastern (MID)

AF:

0.000247

AC:

AN:

4054

European-Non Finnish (NFE)

AF:

0.000490

AC:

526

AN:

1073602

Other (OTH)

AF:

0.000367

AC:

AN:

57280

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.479

Heterozygous variant carriers

102

136

170

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.000184

AC:

AN:

152306

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41572

American (AMR)

AF:

0.000131

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.000621

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000294

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.000227

Hom.:

Bravo

AF:

0.000155

ExAC

AF:

0.000174

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jul 27, 2016

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Mar 07, 2024

Athena Diagnostics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal dominant limb-girdle muscular dystrophy type 1D (DNAJB6)

Benign:1

Dec 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.076

BayesDel_addAF

Benign

-0.48

BayesDel_noAF

Benign

-0.54

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.29

T;T;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.15

LIST_S2

Benign

0.79

T;T;T

M_CAP

Benign

0.039

MetaRNN

Benign

0.018

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.33

N;.;.

PhyloP100

0.64

PrimateAI

Uncertain

0.68

PROVEAN

Benign

0.21

N;N;.

REVEL

Benign

0.032

Sift

Benign

0.32

T;T;.

Sift4G

Benign

0.42

T;T;T

Polyphen

0.0020

B;P;.

Vest4

0.14

MVP

0.42

MPC

0.34

ClinPred

0.033

GERP RS

1.6

Varity_R

0.017

gMVP

0.41

Mutation Taster

=90/10

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over