Genetic Variant DAO:p.Thr15Thr (chr12-108885051-C-T) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001917.5(DAO):c.45C>T(p.Thr15Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000137 in 1,614,158 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00089 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000058 ( 1 hom. )

Consequence

DAO
NM_001917.5 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -6.40

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: Ambry Genetics, Genomics England PanelApp, Orphanet, ClinGen

DAO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 12-108885051-C-T is Benign according to our data. Variant chr12-108885051-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 721844.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-6.4 with no splicing effect.

BS2

High AC in GnomAd4 at 136 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001917.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DAO	NM_001917.5	MANE Select	c.45C>T	p.Thr15Thr	synonymous	Exon 2 of 11	NP_001908.3
DAO	NM_001413634.1		c.45C>T	p.Thr15Thr	synonymous	Exon 3 of 12	NP_001400563.1	P14920
DAO	NM_001413635.1		c.45C>T	p.Thr15Thr	synonymous	Exon 2 of 10	NP_001400564.1	A0A0S2Z3J4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DAO	ENST00000228476.8	TSL:1 MANE Select	c.45C>T	p.Thr15Thr	synonymous	Exon 2 of 11	ENSP00000228476.3	P14920
DAO	ENST00000551281.5	TSL:1	c.45C>T	p.Thr15Thr	synonymous	Exon 2 of 8	ENSP00000446853.1	A0A0B4J250
DAO	ENST00000547122.5	TSL:1	n.45C>T		non_coding_transcript_exon	Exon 2 of 10	ENSP00000448095.1	A0A0B4J257

Frequencies

GnomAD3 genomes

AF:

0.000900

AC:

137

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00311

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000215

AC:

AN:

251466

AF XY:

0.000169

show subpopulations

Gnomad AFR exome

AF:

0.00283

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000581

AC:

AN:

1461882

Hom.:

Cov.:

AF XY:

0.0000481

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00167

AC:

AN:

33478

American (AMR)

AF:

0.000179

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000135

AC:

AN:

1112006

Other (OTH)

AF:

0.0000828

AC:

AN:

60396

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

Exome Hom

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:

0.000893

AC:

136

AN:

152276

Hom.:

Cov.:

AF XY:

0.000886

AC XY:

AN XY:

74456

show subpopulations

African (AFR)

AF:

0.00308

AC:

128

AN:

41546

American (AMR)

AF:

0.000392

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000441

Hom.:

Bravo

AF:

0.000926

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

DAO-related disorder (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

0.48

(source)

DANN

Benign

0.83

PhyloP100

-6.4

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over