2-227893829-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_178821.3(DAW1):c.352C>T(p.Leu118Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,613,868 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

DAW1
NM_178821.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.119

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 Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2196759).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
DAW1	NM_178821.3 linkuse as main transcript	c.352C>T	p.Leu118Phe	missense_variant	5/13	ENST00000309931.3
DAW1	NM_001330004.2 linkuse as main transcript	c.307C>T	p.Leu103Phe	missense_variant	6/14
DAW1	XM_047443536.1 linkuse as main transcript	c.307C>T	p.Leu103Phe	missense_variant	7/15
DAW1	NR_138459.2 linkuse as main transcript	n.411C>T		non_coding_transcript_exon_variant	5/14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DAW1	ENST00000309931.3 linkuse as main transcript	c.352C>T	p.Leu118Phe	missense_variant	5/13	1	NM_178821.3	P1	Q8N136-1
DAW1	ENST00000472604.1 linkuse as main transcript	n.300C>T		non_coding_transcript_exon_variant	4/5	2
DAW1	ENST00000373666.6 linkuse as main transcript	c.352C>T	p.Leu118Phe	missense_variant, NMD_transcript_variant	5/14	2
DAW1	ENST00000454999.5 linkuse as main transcript	c.*293C>T		3_prime_UTR_variant, NMD_transcript_variant	6/8	3

Frequencies

GnomAD3 genomes

AF:

0.0000592

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000597

AC:

AN:

251108

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135712

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000795

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000490

GnomAD4 exome

AF:

0.0000431

AC:

AN:

1461614

Hom.:

Cov.:

AF XY:

0.0000426

AC XY:

AN XY:

727118

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.000613

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000333

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000901

Hom.:

Bravo

AF:

0.0000604

ExAC

AF:

0.0000330

AC:

Asia WGS

AF:

0.00173

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

Sep 27, 2022

The c.352C>T (p.L118F) alteration is located in exon 5 (coding exon 5) of the DAW1 gene. This alteration results from a C to T substitution at nucleotide position 352, causing the leucine (L) at amino acid position 118 to be replaced by a phenylalanine (F). 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

Uncertain

0.36

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.28

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.011

Eigen

Benign

0.054

Eigen_PC

Benign

0.085

FATHMM_MKL

Benign

0.62

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.042

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.43

MutationAssessor

Uncertain

2.4

MutationTaster

Benign

0.84

N;N;N

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-2.1

REVEL

Benign

0.24

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0040

Polyphen

0.42

Vest4

0.46

MutPred

0.52

Gain of catalytic residue at L118 (P = 0.1409);

MVP

0.73

MPC

0.24

ClinPred

0.18

GERP RS

3.9

Varity_R

0.50

gMVP

0.45

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