chr16-70366138-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018332.5(DDX19A):​c.658G>A​(p.Val220Met) variant causes a missense change. The variant allele was found at a frequency of 0.000296 in 1,614,040 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00030 ( 0 hom. )

Consequence

DDX19A
NM_018332.5 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.11
Variant links:
Genes affected
DDX19A (HGNC:25628): (DEAD-box helicase 19A) Predicted to enable RNA binding activity and RNA helicase activity. Predicted to be involved in poly(A)+ mRNA export from nucleus. Located in membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.093354285).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DDX19ANM_018332.5 linkuse as main transcriptc.658G>A p.Val220Met missense_variant 8/12 ENST00000302243.12 NP_060802.1 Q9NUU7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
DDX19AENST00000302243.12 linkuse as main transcriptc.658G>A p.Val220Met missense_variant 8/121 NM_018332.5 ENSP00000306117.7 Q9NUU7-1
ENSG00000260537ENST00000443119.7 linkuse as main transcriptc.661G>A p.Val221Met missense_variant 8/125 ENSP00000399208.3 F6QDS0

Frequencies

GnomAD3 genomes
AF:
0.000223
AC:
34
AN:
152146
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000579
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000676
AC:
17
AN:
251490
Hom.:
0
AF XY:
0.0000441
AC XY:
6
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.000492
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000703
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000304
AC:
444
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.000272
AC XY:
198
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.000687
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000366
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000223
AC:
34
AN:
152146
Hom.:
0
Cov.:
32
AF XY:
0.000283
AC XY:
21
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.000579
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:
0.000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000204
Hom.:
0
Bravo
AF:
0.000238
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
ESP6500AA
AF:
0.000455
AC:
2
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000659
AC:
8
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsDec 12, 2023The c.658G>A (p.V220M) alteration is located in exon 8 (coding exon 8) of the DDX19A gene. This alteration results from a G to A substitution at nucleotide position 658, causing the valine (V) at amino acid position 220 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.067
.;.;T;.
Eigen
Benign
0.18
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Benign
0.0056
T
MetaRNN
Benign
0.093
T;T;T;T
MetaSVM
Benign
-1.2
T
MutationAssessor
Benign
1.2
.;.;L;.
PROVEAN
Benign
-1.1
N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.21
T;T;T;T
Sift4G
Benign
0.33
T;T;T;T
Polyphen
0.90
.;.;P;.
Vest4
0.39, 0.39, 0.37
MVP
0.28
MPC
1.5
ClinPred
0.037
T
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.58

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: rs150154889; hg19: chr16-70400041; API