chr9-72916993-C-G

Variant names:

• chr9-72916993-C-G
• rs781731756
• NM_000689.5:c.962G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BS2

The NM_000689.5(ALDH1A1):​c.962G>C​(p.Arg321Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,650 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R321Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: ALDH1A1 NM_000689.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.491
• Publications: 0 publications found

Genes affected

ALDH1A1 (HGNC:402): (aldehyde dehydrogenase 1 family member A1) The protein encoded by this gene belongs to the aldehyde dehydrogenase family. Aldehyde dehydrogenase is the next enzyme after alcohol dehydrogenase in the major pathway of alcohol metabolism. There are two major aldehyde dehydrogenase isozymes in the liver, cytosolic and mitochondrial, which are encoded by distinct genes, and can be distinguished by their electrophoretic mobility, kinetic properties, and subcellular localization. This gene encodes the cytosolic isozyme. Studies in mice show that through its role in retinol metabolism, this gene may also be involved in the regulation of the metabolic responses to high-fat diet. [provided by RefSeq, Mar 2011]

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BS2: High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ALDH1A1	NM_000689.5	c.962G>C	p.Arg321Pro	missense_variant	Exon 9 of 13	ENST00000297785.8	NP_000680.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ALDH1A1	ENST00000297785.8	c.962G>C	p.Arg321Pro	missense_variant	Exon 9 of 13	1	NM_000689.5	ENSP00000297785.3
ALDH1A1	ENST00000376939.5	c.*49G>C		3_prime_UTR_variant	Exon 8 of 8	5		ENSP00000366138.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461650 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727124

African (AFR) AF: 0.00 AC: 0 AN: 33462

American (AMR) AF: 0.00 AC: 0 AN: 44712

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39686

South Asian (SAS) AF: 0.00 AC: 0 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111846

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.93
BayesDel_addAF	Benign	-0.052	T
BayesDel_noAF	Benign	-0.31
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.71	D
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.46	N
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.029	D
MetaRNN	Uncertain	0.74	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.1	L
PhyloP100		0.49
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-3.5	D
REVEL	Benign	0.20
Sift	Uncertain	0.0080	D
Sift4G	Uncertain	0.016	D
Polyphen		0.98	D
Vest4		0.57
MutPred		0.56		Loss of MoRF binding (P = 0.0261);
MVP		0.37
MPC		1.2
ClinPred		0.94	D
GERP RS		2.0
Varity_R		0.94
gMVP		0.90
Mutation Taster		=60/40	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: rs781731756; hg19: chr9-75531909;