rs17569368

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_007204.5(DDX20):​c.962+44A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0388 in 1,611,488 control chromosomes in the GnomAD database, including 1,458 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.036 ( 133 hom., cov: 33)
Exomes 𝑓: 0.039 ( 1325 hom. )

Consequence

DDX20
NM_007204.5 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.525
Variant links:
Genes affected
DDX20 (HGNC:2743): (DEAD-box helicase 20) DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein, which has an ATPase activity and is a component of the survival of motor neurons (SMN) complex. This protein interacts directly with SMN, the spinal muscular atrophy gene product, and may play a catalytic role in the function of the SMN complex on RNPs. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.71).
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0668 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DDX20NM_007204.5 linkuse as main transcriptc.962+44A>T intron_variant ENST00000369702.5 NP_009135.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DDX20ENST00000369702.5 linkuse as main transcriptc.962+44A>T intron_variant 1 NM_007204.5 ENSP00000358716 P2Q9UHI6-1

Frequencies

GnomAD3 genomes
AF:
0.0356
AC:
5414
AN:
152218
Hom.:
131
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0212
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.0595
Gnomad ASJ
AF:
0.0438
Gnomad EAS
AF:
0.0724
Gnomad SAS
AF:
0.0300
Gnomad FIN
AF:
0.0299
Gnomad MID
AF:
0.0506
Gnomad NFE
AF:
0.0372
Gnomad OTH
AF:
0.0392
GnomAD3 exomes
AF:
0.0477
AC:
11908
AN:
249606
Hom.:
399
AF XY:
0.0448
AC XY:
6051
AN XY:
134952
show subpopulations
Gnomad AFR exome
AF:
0.0180
Gnomad AMR exome
AF:
0.107
Gnomad ASJ exome
AF:
0.0457
Gnomad EAS exome
AF:
0.0743
Gnomad SAS exome
AF:
0.0273
Gnomad FIN exome
AF:
0.0332
Gnomad NFE exome
AF:
0.0379
Gnomad OTH exome
AF:
0.0532
GnomAD4 exome
AF:
0.0391
AC:
57034
AN:
1459152
Hom.:
1325
Cov.:
32
AF XY:
0.0385
AC XY:
27965
AN XY:
725804
show subpopulations
Gnomad4 AFR exome
AF:
0.0190
Gnomad4 AMR exome
AF:
0.101
Gnomad4 ASJ exome
AF:
0.0479
Gnomad4 EAS exome
AF:
0.0780
Gnomad4 SAS exome
AF:
0.0279
Gnomad4 FIN exome
AF:
0.0346
Gnomad4 NFE exome
AF:
0.0365
Gnomad4 OTH exome
AF:
0.0412
GnomAD4 genome
AF:
0.0357
AC:
5431
AN:
152336
Hom.:
133
Cov.:
33
AF XY:
0.0350
AC XY:
2609
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0215
Gnomad4 AMR
AF:
0.0596
Gnomad4 ASJ
AF:
0.0438
Gnomad4 EAS
AF:
0.0728
Gnomad4 SAS
AF:
0.0306
Gnomad4 FIN
AF:
0.0299
Gnomad4 NFE
AF:
0.0372
Gnomad4 OTH
AF:
0.0383
Alfa
AF:
0.0380
Hom.:
24
Bravo
AF:
0.0391
Asia WGS
AF:
0.0510
AC:
179
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.71
CADD
Benign
17
DANN
Benign
0.76
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0

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.

Other links and lift over

dbSNP: rs17569368; hg19: chr1-112303791; COSMIC: COSV63831602; COSMIC: COSV63831602; API