rs3821039

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_006736.6(DNAJB2):​c.446-8G>A variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0343 in 1,613,938 control chromosomes in the GnomAD database, including 3,924 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.096 ( 1698 hom., cov: 32)
Exomes 𝑓: 0.028 ( 2226 hom. )

Consequence

DNAJB2
NM_006736.6 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0002655
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.90
Variant links:
Genes affected
DNAJB2 (HGNC:5228): (DnaJ heat shock protein family (Hsp40) member B2) This gene is almost exclusively expressed in the brain, mainly in the neuronal layers. It encodes a protein that shows sequence similarity to bacterial DnaJ protein and the yeast homologs. In bacteria, this protein is implicated in protein folding and protein complex dissociation. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2011]

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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=-0.75).
BP6
Variant 2-219283125-G-A is Benign according to our data. Variant chr2-219283125-G-A is described in ClinVar as [Benign]. Clinvar id is 473303.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-219283125-G-A is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.273 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DNAJB2NM_006736.6 linkuse as main transcriptc.446-8G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000336576.10 NP_006727.2
DNAJB2NM_001039550.2 linkuse as main transcriptc.446-8G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NP_001034639.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DNAJB2ENST00000336576.10 linkuse as main transcriptc.446-8G>A splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_006736.6 ENSP00000338019 P25686-3

Frequencies

GnomAD3 genomes
AF:
0.0959
AC:
14581
AN:
152078
Hom.:
1684
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.277
Gnomad AMI
AF:
0.00768
Gnomad AMR
AF:
0.0424
Gnomad ASJ
AF:
0.0314
Gnomad EAS
AF:
0.127
Gnomad SAS
AF:
0.0108
Gnomad FIN
AF:
0.0175
Gnomad MID
AF:
0.0538
Gnomad NFE
AF:
0.0188
Gnomad OTH
AF:
0.0783
GnomAD3 exomes
AF:
0.0446
AC:
11194
AN:
251040
Hom.:
871
AF XY:
0.0387
AC XY:
5252
AN XY:
135744
show subpopulations
Gnomad AFR exome
AF:
0.281
Gnomad AMR exome
AF:
0.0238
Gnomad ASJ exome
AF:
0.0339
Gnomad EAS exome
AF:
0.125
Gnomad SAS exome
AF:
0.00846
Gnomad FIN exome
AF:
0.0192
Gnomad NFE exome
AF:
0.0200
Gnomad OTH exome
AF:
0.0375
GnomAD4 exome
AF:
0.0279
AC:
40800
AN:
1461742
Hom.:
2226
Cov.:
32
AF XY:
0.0264
AC XY:
19199
AN XY:
727186
show subpopulations
Gnomad4 AFR exome
AF:
0.284
Gnomad4 AMR exome
AF:
0.0264
Gnomad4 ASJ exome
AF:
0.0312
Gnomad4 EAS exome
AF:
0.147
Gnomad4 SAS exome
AF:
0.00863
Gnomad4 FIN exome
AF:
0.0178
Gnomad4 NFE exome
AF:
0.0169
Gnomad4 OTH exome
AF:
0.0447
GnomAD4 genome
AF:
0.0962
AC:
14634
AN:
152196
Hom.:
1698
Cov.:
32
AF XY:
0.0935
AC XY:
6961
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.277
Gnomad4 AMR
AF:
0.0423
Gnomad4 ASJ
AF:
0.0314
Gnomad4 EAS
AF:
0.127
Gnomad4 SAS
AF:
0.0106
Gnomad4 FIN
AF:
0.0175
Gnomad4 NFE
AF:
0.0188
Gnomad4 OTH
AF:
0.0789
Alfa
AF:
0.0490
Hom.:
481
Bravo
AF:
0.107
Asia WGS
AF:
0.0780
AC:
269
AN:
3478
EpiCase
AF:
0.0194
EpiControl
AF:
0.0184

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Charcot-Marie-Tooth disease Benign:1
Benign, criteria provided, single submitterclinical testingMolecular Genetics Laboratory, London Health Sciences Centre-- -
Neuronopathy, distal hereditary motor, autosomal recessive 5 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
0.50
DANN
Benign
0.88

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00027
dbscSNV1_RF
Benign
0.14
SpliceAI score (max)
0.020
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: rs3821039; hg19: chr2-220147847; COSMIC: COSV60678154; COSMIC: COSV60678154; API