chr7-157416079-C-T

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.962C>T(p.Ser321Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000386 in 1,613,978 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 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. S321P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00063 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00036 ( 1 hom. )

Consequence

DNAJB6
NM_058246.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:4

Conservation

PhyloP100: 4.40

Publications

8 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=0.017237753).

BP6

Variant 7-157416079-C-T is Benign according to our data. Variant chr7-157416079-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 283743.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00063 (96/152322) while in subpopulation NFE AF = 0.00113 (77/68032). AF 95% confidence interval is 0.000928. There are 0 homozygotes in GnomAd4. There are 40 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 96 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_058246.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAJB6	NM_058246.4	MANE Select	c.962C>T	p.Ser321Leu	missense	Exon 10 of 10	NP_490647.1
	DNAJB6	NM_001363676.1		c.617C>T	p.Ser206Leu	missense	Exon 7 of 7	NP_001350605.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DNAJB6	ENST00000262177.9	TSL:1 MANE Select	c.962C>T	p.Ser321Leu	missense	Exon 10 of 10	ENSP00000262177.4
DNAJB6	ENST00000459889.5	TSL:1	n.*5485C>T		non_coding_transcript_exon	Exon 10 of 10	ENSP00000488263.1
DNAJB6	ENST00000459889.5	TSL:1	n.*5485C>T		3_prime_UTR	Exon 10 of 10	ENSP00000488263.1

Frequencies

GnomAD3 genomes

AF:

0.000637

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000565

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00113

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000444

AC:

111

AN:

250190

AF XY:

0.000443

show subpopulations

Gnomad AFR exome

AF:

0.000309

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000509

Gnomad NFE exome

AF:

0.000762

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.000361

AC:

527

AN:

1461656

Hom.:

Cov.:

AF XY:

0.000371

AC XY:

270

AN XY:

727116

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33466

American (AMR)

AF:

0.0000895

AC:

AN:

44688

Ashkenazi Jewish (ASJ)

AF:

0.000191

AC:

AN:

26128

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86242

European-Finnish (FIN)

AF:

0.000581

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000419

AC:

466

AN:

1111902

Other (OTH)

AF:

0.000199

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

118

148

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000630

AC:

AN:

152322

Hom.:

Cov.:

AF XY:

0.000537

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41570

American (AMR)

AF:

0.000523

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.000565

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00113

AC:

AN:

68032

Other (OTH)

AF:

0.000473

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.520

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:

0.000742

Hom.:

Bravo

AF:

0.000359

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000593

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Aug 22, 2017

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DNAJB6: BP4, BS2

Myofibrillar Myopathy, Dominant

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Limb-Girdle Muscular Dystrophy, Dominant

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not specified

Benign:1

Oct 16, 2017

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

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

Benign:1

Jan 07, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

DNAJB6-related disorder

Benign:1

Jan 31, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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 v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.40

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.56

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.82

M_CAP

Benign

0.069

MetaRNN

Benign

0.017

MetaSVM

Benign

-0.91

MutationAssessor

Benign

1.9

PhyloP100

4.4

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-1.5

REVEL

Benign

0.17

Sift

Uncertain

0.0080

Sift4G

Uncertain

0.011

Polyphen

0.0070

Vest4

0.20

MVP

0.48

MPC

0.31

ClinPred

0.037

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.088

gMVP

0.11

Mutation Taster

=74/26

polymorphism

(source)

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

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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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over