chr7-157358612-G-T

Position:

chr7-157358612-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM1PP3

The NM_058246.4(DNAJB6):c.40G>T(p.Ala14Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,613,676 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

DNAJB6
NM_058246.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.49

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 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1

In a region_of_interest Interaction with HSP70 (size 144) in uniprot entity DNJB6_HUMAN there are 18 pathogenic changes around while only 0 benign (100%) in NM_058246.4

PP3

MetaRNN computational evidence supports a deleterious effect, 0.772

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAJB6	NM_058246.4 linkuse as main transcript	c.40G>T	p.Ala14Ser	missense_variant	2/10	ENST00000262177.9	NP_490647.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAJB6	ENST00000262177.9 linkuse as main transcript	c.40G>T	p.Ala14Ser	missense_variant	2/10	1	NM_058246.4	ENSP00000262177		O75190-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152232

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00000398

AC:

AN:

251446

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135898

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461444

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727054

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000671

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152232

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

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

Bravo

AF:

0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

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

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 01, 2023

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DNAJB6 protein function. ClinVar contains an entry for this variant (Variation ID: 849625). This variant has not been reported in the literature in individuals affected with DNAJB6-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.003%). This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 14 of the DNAJB6 protein (p.Ala14Ser). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Uncertain

0.025

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

DANN

Uncertain

0.98

DEOGEN2

Benign

0.21

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

Eigen

Uncertain

0.20

Eigen_PC

Uncertain

0.37

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.91

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

M_CAP

Benign

0.0054

MetaRNN

Pathogenic

0.77

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

MetaSVM

Benign

-0.75

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.65

PROVEAN

Uncertain

-2.6

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

REVEL

Uncertain

0.34

Sift

Benign

0.037

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

Sift4G

Uncertain

0.049

D;T;T;D;D;D;T;D;D;D

Polyphen

1.0, 0.97, 0.93

.;D;D;.;P;.;.;.;.;.

Vest4

0.51, 0.51, 0.49, 0.54

MutPred

0.79

Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);Gain of phosphorylation at A14 (P = 0.0519);

MVP

0.57

MPC

1.1

ClinPred

0.87

GERP RS

5.8

Varity_R

0.30

gMVP

0.41

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