Variant 2-227889966-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_178821.3(DAW1):c.224G>A(p.Gly75Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000569 in 1,599,524 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G75S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

DAW1
NM_178821.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.25

Variant links:

Genes affected

DAW1 (HGNC:26383): (dynein assembly factor with WD repeats 1) Predicted to act upstream of or within several processes, including cerebrospinal fluid circulation; determination of left/right symmetry; and outer dynein arm assembly. Predicted to be located in cilium and extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

DAW1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.047391742).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DAW1	NM_178821.3 linkuse as main transcript	c.224G>A	p.Gly75Asp	missense_variant	3/13	ENST00000309931.3
DAW1	NM_001330004.2 linkuse as main transcript	c.179G>A	p.Gly60Asp	missense_variant	4/14
DAW1	XM_047443536.1 linkuse as main transcript	c.179G>A	p.Gly60Asp	missense_variant	5/15
DAW1	NR_138459.2 linkuse as main transcript	n.283G>A		non_coding_transcript_exon_variant	3/14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DAW1	ENST00000309931.3 linkuse as main transcript	c.224G>A	p.Gly75Asp	missense_variant	3/13	1	NM_178821.3	P1	Q8N136-1

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152092

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000632

AC:

AN:

237470

Hom.:

AF XY:

0.0000543

AC XY:

AN XY:

128804

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000196

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000718

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000639

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000567

AC:

AN:

1447432

Hom.:

Cov.:

AF XY:

0.0000528

AC XY:

AN XY:

719942

show subpopulations

Gnomad4 AFR exome

AF:

0.0000307

Gnomad4 AMR exome

AF:

0.000168

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000479

Gnomad4 FIN exome

AF:

0.0000188

Gnomad4 NFE exome

AF:

0.0000461

Gnomad4 OTH exome

AF:

0.0000502

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152092

Hom.:

Cov.:

AF XY:

0.0000942

AC XY:

AN XY:

74286

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000328

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000741

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

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

Oct 12, 2021

The c.224G>A (p.G75D) alteration is located in exon 3 (coding exon 3) of the DAW1 gene. This alteration results from a G to A substitution at nucleotide position 224, causing the glycine (G) at amino acid position 75 to be replaced by an aspartic acid (D). 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

0.12

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.46

Cadd

Benign

7.9

Dann

Benign

0.76

DEOGEN2

Benign

0.0037

T;T

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.85

T;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.047

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.9

L;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.8

N;N

REVEL

Benign

0.13

Sift

Benign

0.59

T;T

Sift4G

Benign

0.60

T;T

Polyphen

0.14

B;.

Vest4

0.40

MVP

0.33

MPC

0.13

ClinPred

0.047

GERP RS

1.3

Varity_R

0.080

gMVP

0.26

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.

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