Variant chr9-132618360-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_022779.9(DDX31):c.1795A>G(p.Ser599Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000284 in 1,611,278 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00030 ( 0 hom. )

Consequence

DDX31
NM_022779.9 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.784

Variant links:

Genes affected

DDX31 (HGNC:16715): (DEAD-box helicase 31) 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 DEAD box protein family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a member of this family. The function of this member has not been determined. Alternative splicing of this gene generates multiple transcript variants encoding different isoforms. [provided by RefSeq, Apr 2016]

DDX31 links:

DDX31 (HGNC:):

DDX31 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DDX31	NM_022779.9 linkuse as main transcript	c.1795A>G	p.Ser599Gly	missense_variant	18/20	ENST00000372159.8	NP_073616.7	Q9H8H2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DDX31	ENST00000372159.8 linkuse as main transcript	c.1795A>G	p.Ser599Gly	missense_variant	18/20	1	NM_022779.9	ENSP00000361232.4		Q9H8H2

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

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:

0.000265

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000644

AC:

AN:

248606

Hom.:

AF XY:

0.0000745

AC XY:

AN XY:

134304

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.0000301

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:

0.000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000298

AC:

435

AN:

1459096

Hom.:

Cov.:

AF XY:

0.000307

AC XY:

223

AN XY:

725726

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.0000453

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:

0.000383

Gnomad4 OTH exome

AF:

0.0000995

GnomAD4 genome

AF:

0.000151

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74352

show subpopulations

Gnomad4 AFR

AF:

0.0000965

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:

0.000265

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000164

Hom.:

Bravo

AF:

0.000128

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000110

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 submitter

clinical testing

Ambry Genetics

Sep 17, 2021

The c.2110A>G (p.S704G) alteration is located in exon 18 (coding exon 18) of the DDX31 gene. This alteration results from a A to G substitution at nucleotide position 2110, causing the serine (S) at amino acid position 704 to be replaced by a glycine (G). 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

0.086

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.0062

T;T;.

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.17

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.64

.;T;T

M_CAP

Benign

0.0098

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.2

M;M;.

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.5

N;.;.

REVEL

Benign

0.036

Sift

Benign

0.065

T;.;.

Sift4G

Benign

0.31

T;T;T

Polyphen

0.71

P;P;.

Vest4

0.23

MVP

0.45

MPC

0.15

ClinPred

0.069

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.074

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.22

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.22

Position offset: 0

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over