Genetic Variant DDX1:p.Met222Val (chr2-15605988-A-G) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004939.3(DDX1):c.664A>G(p.Met222Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000631 in 1,585,760 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000063 ( 0 hom. )

Consequence

DDX1
NM_004939.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.606

Publications

0 publications found

Variant links:

Genes affected

DDX1 (HGNC:2734): (DEAD-box helicase 1) 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 that acts as an ATP-dependent RNA helicase that has been found to promote coronaviruses replication. [provided by RefSeq, Aug 2021]

DDX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10515213).

BS2

High AC in GnomAdExome4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004939.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DDX1	NM_004939.3	MANE Select	c.664A>G	p.Met222Val	missense	Exon 11 of 26	NP_004930.1	Q92499-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DDX1	ENST00000233084.8	TSL:1 MANE Select	c.664A>G	p.Met222Val	missense	Exon 11 of 26	ENSP00000233084.3	Q92499-1
DDX1	ENST00000617198.5	TSL:1	c.388A>G	p.Met130Val	missense	Exon 9 of 24	ENSP00000482416.2	A0A087WZ71
DDX1	ENST00000381341.7	TSL:5	c.664A>G	p.Met222Val	missense	Exon 12 of 27	ENSP00000370745.1	Q92499-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

225860

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000628

AC:

AN:

1433568

Hom.:

Cov.:

AF XY:

0.00000562

AC XY:

AN XY:

711920

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31702

American (AMR)

AF:

0.0000266

AC:

AN:

37558

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24654

East Asian (EAS)

AF:

0.00

AC:

AN:

39402

South Asian (SAS)

AF:

0.00

AC:

AN:

79994

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52828

Middle Eastern (MID)

AF:

0.000178

AC:

AN:

5606

European-Non Finnish (NFE)

AF:

9.07e-7

AC:

AN:

1102704

Other (OTH)

AF:

0.000101

AC:

AN:

59120

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41458

American (AMR)

AF:

0.0000655

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000849

Hom.:

Bravo

AF:

0.000102

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.093

Eigen

Benign

-0.71

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.21

LIST_S2

Benign

0.82

M_CAP

Benign

0.015

MetaRNN

Benign

0.11

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.66

PhyloP100

-0.61

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.4

REVEL

Benign

0.093

Sift

Benign

0.072

Sift4G

Benign

0.11

Polyphen

0.0

Vest4

0.22

MutPred

0.49

Gain of methylation at K223 (P = 0.0172)

MVP

0.49

MPC

0.27

ClinPred

0.045

GERP RS

-0.022

Varity_R

0.12

gMVP

0.47

Mutation Taster

=90/10

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over