Genetic Variant DAO:c.-9-234C>T (chr12-108884764-C-T) – ACMG Classification: Benign (-14 pts)

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_001917.5(DAO):c.-9-234C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0194 in 152,228 control chromosomes in the GnomAD database, including 105 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.019 ( 105 hom., cov: 32)

Consequence

DAO
NM_001917.5 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.261

Publications

0 publications found

Variant links:

Genes affected

DAO (HGNC:2671): (D-amino acid oxidase) This gene encodes the peroxisomal enzyme D-amino acid oxidase. The enzyme is a flavoprotein which uses flavin adenine dinucleotide (FAD) as its prosthetic group. Its substrates include a wide variety of D-amino acids, but it is inactive on the naturally occurring L-amino acids. Its biological function is not known; it may act as a detoxifying agent which removes D-amino acids that accumulate during aging. In mice, it degrades D-serine, a co-agonist of the NMDA receptor. This gene may play a role in the pathophysiology of schizophrenia. [provided by RefSeq, Jul 2008]

DAO Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis
Inheritance: AD Classification: MODERATE, SUPPORTIVE, LIMITED, NO_KNOWN Submitted by: ClinGen, Orphanet, Genomics England PanelApp, Ambry Genetics

DAO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

BP6

Variant 12-108884764-C-T is Benign according to our data. Variant chr12-108884764-C-T is described in ClinVar as Benign. ClinVar VariationId is 1272817.Status of the report is criteria_provided_single_submitter, 1 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0652 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DAO	NM_001917.5 link	c.-9-234C>T		intron_variant	Intron 1 of 10	ENST00000228476.8	NP_001908.3	P14920A0A024RBI1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DAO	ENST00000228476.8 link	c.-9-234C>T		intron_variant	Intron 1 of 10	1	NM_001917.5	ENSP00000228476.3		P14920

Frequencies

GnomAD3 genomes

AF:

0.0194

AC:

2948

AN:

152110

Hom.:

104

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0672

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00688

Gnomad ASJ

AF:

0.00259

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000309

Gnomad OTH

AF:

0.0144

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

AF:

0.0194

AC:

2959

AN:

152228

Hom.:

105

Cov.:

AF XY:

0.0188

AC XY:

1400

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.0673

AC:

2794

AN:

41508

American (AMR)

AF:

0.00687

AC:

105

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00259

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000309

AC:

AN:

68018

Other (OTH)

AF:

0.0142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

136

271

407

542

678

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

128

160

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0167

Hom.:

Bravo

AF:

0.0218

Asia WGS

AF:

0.00404

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Jun 19, 2021

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.66

(source)

DANN

Benign

0.75

PhyloP100

-0.26

Mutation Taster

=100/0

polymorphism (auto)

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over