Genetic Variant DNAJC21:p.Glu17Glu (chr5-34929870-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_ModerateBP6_ModerateBP7

The NM_001012339.3(DNAJC21):c.51G>A(p.Glu17Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000144 in 1,583,812 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 29)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

DNAJC21
NM_001012339.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.578

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

bone marrow failure syndrome 3
Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
Shwachman-Diamond syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

DNAJC21 links:

LOC124900961 (HGNC:):

LOC124900961 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 5-34929870-G-A is Benign according to our data. Variant chr5-34929870-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 717195.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=0.578 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DNAJC21	NM_001012339.3 link	c.51G>A	p.Glu17Glu	synonymous_variant	Exon 1 of 12	ENST00000648817.1	NP_001012339.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DNAJC21	ENST00000648817.1 link	c.51G>A	p.Glu17Glu	synonymous_variant	Exon 1 of 12		NM_001012339.3	ENSP00000497410.1		Q5F1R6-1

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

151666

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

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:

0.000236

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000999

AC:

AN:

220156

AF XY:

0.000108

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000322

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000171

Gnomad OTH exome

AF:

0.000194

GnomAD4 exome

AF:

0.000146

AC:

209

AN:

1432146

Hom.:

Cov.:

AF XY:

0.000143

AC XY:

102

AN XY:

712450

show subpopulations

African (AFR)

AF:

0.0000987

AC:

AN:

30408

American (AMR)

AF:

0.0000237

AC:

AN:

42188

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25244

East Asian (EAS)

AF:

0.00

AC:

AN:

35930

South Asian (SAS)

AF:

0.0000958

AC:

AN:

83474

European-Finnish (FIN)

AF:

0.0000192

AC:

AN:

52198

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5588

European-Non Finnish (NFE)

AF:

0.000168

AC:

185

AN:

1098124

Other (OTH)

AF:

0.000186

AC:

AN:

58992

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000125

AC:

AN:

151666

Hom.:

Cov.:

AF XY:

0.0000810

AC XY:

AN XY:

74060

show subpopulations

African (AFR)

AF:

0.0000725

AC:

AN:

41370

American (AMR)

AF:

0.00

AC:

AN:

15242

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5110

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10500

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.000236

AC:

AN:

67836

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000186

Hom.:

Bravo

AF:

0.000128

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Sep 03, 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

BayesDel_noAF

Benign

-0.46

CADD

Benign

(source)

DANN

Benign

0.95

PhyloP100

0.58

PromoterAI

-0.081

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

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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5-34929870-G-A

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