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GeneBe

5-34929921-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001012339.3(DNAJC21):c.97+5G>A variant causes a splice donor 5th base, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000543 in 1,570,026 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00029 ( 0 hom., cov: 29)
Exomes 𝑓: 0.00057 ( 14 hom. )

Consequence

DNAJC21
NM_001012339.3 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.9907
1
1

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.702
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.69).
BP6
Variant 5-34929921-G-A is Benign according to our data. Variant chr5-34929921-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 724583.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000289 (44/152102) while in subpopulation SAS AF= 0.00911 (44/4830). AF 95% confidence interval is 0.00697. There are 0 homozygotes in gnomad4. There are 35 alleles in male gnomad4 subpopulation. Median coverage is 29. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome at 6 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DNAJC21NM_001012339.3 linkuse as main transcriptc.97+5G>A splice_donor_5th_base_variant, intron_variant ENST00000648817.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DNAJC21ENST00000648817.1 linkuse as main transcriptc.97+5G>A splice_donor_5th_base_variant, intron_variant NM_001012339.3 P1Q5F1R6-1

Frequencies

GnomAD3 genomes
AF:
0.000289
AC:
44
AN:
151986
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00910
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00125
AC:
261
AN:
209028
Hom.:
6
AF XY:
0.00173
AC XY:
199
AN XY:
114700
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:
0.00980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000571
AC:
809
AN:
1417924
Hom.:
14
Cov.:
30
AF XY:
0.000848
AC XY:
598
AN XY:
704922
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:
0.00947
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.18e-7
Gnomad4 OTH exome
AF:
0.000533
GnomAD4 genome
AF:
0.000289
AC:
44
AN:
152102
Hom.:
0
Cov.:
29
AF XY:
0.000471
AC XY:
35
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00911
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000693
Hom.:
0
Bravo
AF:
0.0000491
Asia WGS
AF:
0.00404
AC:
14
AN:
3476

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenApr 01, 2022DNAJC21: BP4, BS2 -
Benign, criteria provided, single submitterclinical testingInvitaeJan 06, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.69
Cadd
Benign
17
Dann
Benign
0.90
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Benign
0.68
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.

Other links and lift over

dbSNP: rs200459314; hg19: chr5-34930026; API