Genetic Variant DNAJC19:p.Glu111Lys (chr3-180984660-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_145261.4(DNAJC19):c.331G>A(p.Glu111Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000618 in 1,455,622 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E111Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

DNAJC19
NM_145261.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.80

Variant links:

Genes affected

DNAJC19 (HGNC:30528): (DnaJ heat shock protein family (Hsp40) member C19) The protein encoded by this gene is thought to be part of a complex involved in the ATP-dependent transport of transit peptide-containing proteins from the inner cell membrane to the mitochondrial matrix. Defects in this gene are a cause of 3-methylglutaconic aciduria type 5 (MGA5), also known as dilated cardiomyopathy with ataxia (DCMA). Alternative splicing of this gene results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 1, 2, 6, 10, 14 and 19. [provided by RefSeq, Jan 2012]

DNAJC19 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30064413).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAJC19	NM_145261.4 link	c.331G>A	p.Glu111Lys	missense_variant	Exon 6 of 6	ENST00000382564.8	NP_660304.1	Q96DA6-1A0A0S2Z5X1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAJC19	ENST00000382564.8 link	c.331G>A	p.Glu111Lys	missense_variant	Exon 6 of 6	1	NM_145261.4	ENSP00000372005.2		Q96DA6-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000162

AC:

AN:

246178

Hom.:

AF XY:

0.00000751

AC XY:

AN XY:

133166

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000271

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.00000618

AC:

AN:

1455622

Hom.:

Cov.:

AF XY:

0.00000414

AC XY:

AN XY:

724126

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000632

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

3-methylglutaconic aciduria type 5

Uncertain:1

Jan 23, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant has not been reported in the literature in individuals affected with DNAJC19-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 111 of the DNAJC19 protein (p.Glu111Lys). This variant is present in population databases (rs370042988, gnomAD 0.003%). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.28

T;.;.;.

Eigen

Benign

-0.019

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.97

D;.;D;D

M_CAP

Benign

0.0087

MetaRNN

Benign

0.30

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.085

N;.;.;.

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.3

D;D;.;D

REVEL

Benign

0.18

Sift

Uncertain

0.0080

D;D;.;D

Sift4G

Benign

0.25

T;T;.;T

Polyphen

0.0060

B;.;.;.

Vest4

0.34

MutPred

0.39

Gain of MoRF binding (P = 0);.;.;.;

MVP

0.48

MPC

0.42

ClinPred

0.35

GERP RS

6.0

Varity_R

0.41

gMVP

0.74

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

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