12-108885153-C-T

Variant names:

• chr12-108885153-C-T
• rs531749171
• NM_001917.5:c.147C>T

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Strong BP6 BP7 BS2

The NM_001917.5(DAO):​c.147C>T​(p.Ala49Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000201 in 1,613,372 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 (no stars).

• Frequency:
  • Genomes: 𝑓 0.00020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00020 (2 hom.)
• Consequence: DAO NM_001917.5 synonymous
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: -9.41
• Publications: 0 publications found

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

ACMG classification

Our verdict: Benign. The variant received -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 12-108885153-C-T is Benign according to our data. Variant chr12-108885153-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3046863.Status of the report is no_assertion_criteria_provided, 0 stars.
• BP7: Synonymous conserved (PhyloP=-9.41 with no splicing effect.
• BS2: High AC in GnomAd4 at 30 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DAO	NM_001917.5	MANE Select	c.147C>T	p.Ala49Ala	synonymous	Exon 2 of 11	NP_001908.3
	DAO	NM_001413634.1		c.147C>T	p.Ala49Ala	synonymous	Exon 3 of 12	NP_001400563.1	P14920
	DAO	NM_001413635.1		c.147C>T	p.Ala49Ala	synonymous	Exon 2 of 10	NP_001400564.1	A0A0S2Z3J4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DAO	ENST00000228476.8	TSL:1 MANE Select	c.147C>T	p.Ala49Ala	synonymous	Exon 2 of 11	ENSP00000228476.3	P14920
	DAO	ENST00000551281.5	TSL:1	c.147C>T	p.Ala49Ala	synonymous	Exon 2 of 8	ENSP00000446853.1	A0A0B4J250
	DAO	ENST00000547122.5	TSL:1	n.147C>T		non_coding_transcript_exon	Exon 2 of 10	ENSP00000448095.1	A0A0B4J257

Frequencies

GnomAD3 genomes AF: 0.000197 AC: 30 AN: 152160 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000963

Gnomad SAS AF: 0.00498

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000490 AC: 123 AN: 251126 AF XY: 0.000663

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000761

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.000201 AC: 294 AN: 1461094 Hom.: 2 Cov.: 32 AF XY: 0.000289 AC XY: 210 AN XY: 726692

African (AFR) AF: 0.00 AC: 0 AN: 33466

American (AMR) AF: 0.00 AC: 0 AN: 44706

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.000302 AC: 12 AN: 39670

South Asian (SAS) AF: 0.00294 AC: 254 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53264

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.0000153 AC: 17 AN: 1111482

Other (OTH) AF: 0.000182 AC: 11 AN: 60364

GnomAD4 genome AF: 0.000197 AC: 30 AN: 152278 Hom.: 0 Cov.: 32 AF XY: 0.000349 AC XY: 26 AN XY: 74460

African (AFR) AF: 0.0000241 AC: 1 AN: 41566

American (AMR) AF: 0.00 AC: 0 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000965 AC: 5 AN: 5180

South Asian (SAS) AF: 0.00498 AC: 24 AN: 4820

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68010

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.000139 Hom.: 0

Bravo AF: 0.0000416

Asia WGS AF: 0.00144 AC: 5 AN: 3476

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	-	1	DAO-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
CADD	Benign	0.061
DANN	Benign	0.37
PhyloP100		-9.4
Mutation Taster		=99/1	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs531749171; hg19: chr12-109278929;