chr17-19740447-G-A

Variant names:

• chr17-19740447-G-A
• rs554254701
• NM_000691.5:c.838C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_000691.5(ALDH3A1):​c.838C>T​(p.Arg280Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,614,032 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000027 (0 hom.)
• Consequence: ALDH3A1 NM_000691.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.636
• Publications: 1 publications found

Genes affected

ALDH3A1 (HGNC:405): (aldehyde dehydrogenase 3 family member A1) Aldehyde dehydrogenases oxidize various aldehydes to the corresponding acids. They are involved in the detoxification of alcohol-derived acetaldehyde and in the metabolism of corticosteroids, biogenic amines, neurotransmitters, and lipid peroxidation. The enzyme encoded by this gene forms a cytoplasmic homodimer that preferentially oxidizes aromatic and medium-chain (6 carbons or more) saturated and unsaturated aldehyde substrates. It is thought to promote resistance to UV and 4-hydroxy-2-nonenal-induced oxidative damage in the cornea. The gene is located within the Smith-Magenis syndrome region on chromosome 17. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Sep 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.10353929).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000691.5. 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
	ALDH3A1	NM_000691.5	MANE Select	c.838C>T	p.Arg280Trp	missense	Exon 7 of 11	NP_000682.3
	ALDH3A1	NM_001135167.1		c.838C>T	p.Arg280Trp	missense	Exon 7 of 11	NP_001128639.1	P30838
	ALDH3A1	NM_001135168.1		c.838C>T	p.Arg280Trp	missense	Exon 6 of 10	NP_001128640.1	P30838

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ALDH3A1	ENST00000225740.11	TSL:1 MANE Select	c.838C>T	p.Arg280Trp	missense	Exon 7 of 11	ENSP00000225740.6	P30838
	ALDH3A1	ENST00000457500.6	TSL:1	c.838C>T	p.Arg280Trp	missense	Exon 6 of 10	ENSP00000411821.2	P30838
	ALDH3A1	ENST00000905965.1		c.859C>T	p.Arg287Trp	missense	Exon 7 of 11	ENSP00000576024.1

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152100 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

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: 0.0000676 AC: 17 AN: 251422 AF XY: 0.0000515

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: 0.0000264

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000267 AC: 39 AN: 1461814 Hom.: 0 Cov.: 30 AF XY: 0.0000206 AC XY: 15 AN XY: 727218

African (AFR) AF: 0.0000597 AC: 2 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.000453 AC: 18 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53348

Middle Eastern (MID) AF: 0.000173 AC: 1 AN: 5768

European-Non Finnish (NFE) AF: 0.0000117 AC: 13 AN: 1112010

Other (OTH) AF: 0.0000828 AC: 5 AN: 60394

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152218 Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2 AN XY: 74410

African (AFR) AF: 0.00 AC: 0 AN: 41538

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

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

East Asian (EAS) AF: 0.000194 AC: 1 AN: 5166

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

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

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68006

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.0000341 Hom.: 0

Bravo AF: 0.0000227

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ExAC AF: 0.0000659 AC: 8

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.32	T
Eigen	Benign	-0.13
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.26	N
LIST_S2	Uncertain	0.86	D
M_CAP	Uncertain	0.10	D
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-0.60	T
MutationAssessor	Benign	1.7	L
PhyloP100		0.64
PrimateAI	Benign	0.23	T
PROVEAN	Uncertain	-2.8	D
REVEL	Uncertain	0.32
Sift	Uncertain	0.0040	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.16
MutPred		0.56		Loss of disorder (P = 0.0081)
MVP		0.64
MPC		0.61
ClinPred		0.35	T
GERP RS		2.7
Varity_R		0.61
gMVP		0.73
Mutation Taster		=72/28	polymorphism

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

Other links and lift over

dbSNP: rs554254701; hg19: chr17-19643760;