Variant chr2-227889866-A-G 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.124A>G(p.Ser42Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000656 in 1,595,458 control chromosomes in the GnomAD database, including 1 homozygotes. 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. S42T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00032 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00069 ( 0 hom. )

Consequence

DAW1
NM_178821.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.45

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=0.019227624).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DAW1	NM_178821.3 linkuse as main transcript	c.124A>G	p.Ser42Gly	missense_variant	3/13	ENST00000309931.3
DAW1	NM_001330004.2 linkuse as main transcript	c.79A>G	p.Ser27Gly	missense_variant	4/14
DAW1	XM_047443536.1 linkuse as main transcript	c.79A>G	p.Ser27Gly	missense_variant	5/15
DAW1	NR_138459.2 linkuse as main transcript	n.183A>G		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.124A>G	p.Ser42Gly	missense_variant	3/13	1	NM_178821.3	P1	Q8N136-1

Frequencies

GnomAD3 genomes

AF:

0.000322

AC:

AN:

152238

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000617

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000514

AC:

120

AN:

233370

Hom.:

AF XY:

0.000515

AC XY:

AN XY:

126320

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000444

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:

0.000974

Gnomad OTH exome

AF:

0.000179

GnomAD4 exome

AF:

0.000692

AC:

998

AN:

1443102

Hom.:

Cov.:

AF XY:

0.000635

AC XY:

456

AN XY:

717572

show subpopulations

Gnomad4 AFR exome

AF:

0.0000932

Gnomad4 AMR exome

AF:

0.000278

Gnomad4 ASJ exome

AF:

0.0000392

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000752

Gnomad4 NFE exome

AF:

0.000861

Gnomad4 OTH exome

AF:

0.000436

GnomAD4 genome

AF:

0.000322

AC:

AN:

152356

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

AN XY:

74514

show subpopulations

Gnomad4 AFR

AF:

0.0000240

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000617

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.000439

Hom.:

Bravo

AF:

0.000374

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00130

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000930

AC:

ExAC

AF:

0.000511

AC:

Asia WGS

AF:

0.000289

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

Dec 20, 2021

The c.124A>G (p.S42G) alteration is located in exon 3 (coding exon 3) of the DAW1 gene. This alteration results from a A to G substitution at nucleotide position 124, causing the serine (S) at amino acid position 42 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

0.073

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.0040

T;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.018

LIST_S2

Benign

0.48

T;T

M_CAP

Benign

0.0071

MetaRNN

Benign

0.019

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

N;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.068

Sift

Benign

0.10

T;T

Sift4G

Benign

0.12

T;T

Polyphen

0.0

B;.

Vest4

0.13

MVP

0.19

MPC

0.080

ClinPred

0.012

GERP RS

-4.0

Varity_R

0.056

gMVP

0.095

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