Variant 5-34929844-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001012339.3(DNAJC21):c.25G>A(p.Gly9Arg) variant causes a missense change. The variant allele was found at a frequency of 0.000026 in 1,576,548 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 0.000040 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

DNAJC21
NM_001012339.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.98

Variant links:

Genes affected

DNAJC21 (HGNC:27030): (DnaJ heat shock protein family (Hsp40) member C21) This gene encodes a member of the DNAJ heat shock protein 40 family of proteins that is characterized by two N-terminal tetratricopeptide repeat domains and a C-terminal DNAJ domain. This protein binds the precursor 45S ribosomal RNA and may be involved in early nuclear ribosomal RNA biogenesis and maturation of the 60S ribosomal subunit. Mutations in this gene result in Bone marrow failure syndrome 3. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2017]

DNAJC21 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.963

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAJC21	NM_001012339.3 linkuse as main transcript	c.25G>A	p.Gly9Arg	missense_variant	1/12	ENST00000648817.1	NP_001012339.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAJC21	ENST00000648817.1 linkuse as main transcript	c.25G>A	p.Gly9Arg	missense_variant	1/12		NM_001012339.3	ENSP00000497410	P1	Q5F1R6-1

Frequencies

GnomAD3 genomes

AF:

0.0000397

AC:

AN:

151130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000739

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000246

AC:

AN:

1425418

Hom.:

Cov.:

AF XY:

0.0000226

AC XY:

AN XY:

709124

show subpopulations

Gnomad4 AFR exome

AF:

0.0000333

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:

0.0000193

Gnomad4 NFE exome

AF:

0.0000301

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000397

AC:

AN:

151130

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73792

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000739

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000302

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 13, 2022

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 9 of the DNAJC21 protein (p.Gly9Arg). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with DNAJC21-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.90

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.43

T;T;.;.

Eigen

Uncertain

0.60

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Benign

0.56

LIST_S2

Pathogenic

0.98

.;D;D;D

M_CAP

Pathogenic

0.66

MetaRNN

Pathogenic

0.96

D;D;D;D

MetaSVM

Uncertain

0.41

MutationAssessor

Pathogenic

2.9

M;M;M;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.92

PROVEAN

Pathogenic

-4.8

.;D;D;.

REVEL

Pathogenic

0.78

Sift

Uncertain

0.022

.;D;D;.

Sift4G

Uncertain

0.019

.;D;D;.

Polyphen

1.0

D;D;D;.

Vest4

0.44, 0.49

MutPred

0.85

Gain of MoRF binding (P = 4e-04);Gain of MoRF binding (P = 4e-04);Gain of MoRF binding (P = 4e-04);Gain of MoRF binding (P = 4e-04);

MVP

0.91

MPC

0.34

ClinPred

0.99

GERP RS

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.63

gMVP

0.59

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