chr16-70371374-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018332.5(DDX19A):ā€‹c.1186A>Gā€‹(p.Ile396Val) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,612,968 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 31)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

DDX19A
NM_018332.5 missense, splice_region

Scores

4
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.69
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 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.811

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
DDX19ANM_018332.5 linkuse as main transcriptc.1186A>G p.Ile396Val missense_variant, splice_region_variant 11/12 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.1186A>G p.Ile396Val missense_variant, splice_region_variant 11/121 NM_018332.5 ENSP00000306117.7 Q9NUU7-1
ENSG00000260537ENST00000443119.7 linkuse as main transcriptc.1189A>G p.Ile397Val missense_variant, splice_region_variant 11/125 ENSP00000399208.3 F6QDS0

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151812
Hom.:
0
Cov.:
31
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:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000798
AC:
2
AN:
250770
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135642
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461156
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726946
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151812
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74124
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000111
Hom.:
0
ExAC
AF:
0.0000165
AC:
2

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 GeneticsOct 12, 2024The c.1186A>G (p.I396V) alteration is located in exon 11 (coding exon 11) of the DDX19A gene. This alteration results from a A to G substitution at nucleotide position 1186, causing the isoleucine (I) at amino acid position 396 to be replaced by a valine (V). 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
Pathogenic
0.88
BayesDel_addAF
Benign
-0.0050
T
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.29
.;T;.
Eigen
Uncertain
0.24
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.81
D;D;D
MetaSVM
Uncertain
0.12
D
MutationAssessor
Benign
1.2
.;L;.
PROVEAN
Benign
-0.96
.;N;N
REVEL
Uncertain
0.59
Sift
Pathogenic
0.0
.;D;D
Sift4G
Uncertain
0.021
D;D;D
Polyphen
0.15
.;B;.
Vest4
0.58
MutPred
0.71
.;Gain of catalytic residue at I396 (P = 0.1551);.;
MVP
0.64
MPC
1.7
ClinPred
0.71
D
GERP RS
5.1
Varity_R
0.37
gMVP
0.89

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.10
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: rs771180253; hg19: chr16-70405277; API