rs4775031

Positions:

• chr15-58343384-C-A

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The ENST00000558239.5(ALDH1A2):​c.-172+76587G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.14 in 152,146 control chromosomes in the GnomAD database, including 1,706 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.14 (1706 hom., cov: 33)
• Consequence: ALDH1A2 ENST00000558239.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0210

Genes affected

ALDH1A2 (HGNC:15472): (aldehyde dehydrogenase 1 family member A2) This protein belongs to the aldehyde dehydrogenase family of proteins. The product of this gene is an enzyme that catalyzes the synthesis of retinoic acid (RA) from retinaldehyde. Retinoic acid, the active derivative of vitamin A (retinol), is a hormonal signaling molecule that functions in developing and adult tissues. The studies of a similar mouse gene suggest that this enzyme and the cytochrome CYP26A1, concurrently establish local embryonic retinoic acid levels which facilitate posterior organ development and prevent spina bifida. Four transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, May 2011]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.79).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.235 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ALDH1A2	ENST00000558239.5	c.-172+76587G>T		intron_variant		4		ENSP00000453292
ALDH1A2	ENST00000560863.5	n.415+76587G>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes AF: 0.140 AC: 21314 AN: 152028 Hom.: 1703 Cov.: 33

Gnomad AFR AF: 0.105

Gnomad AMI AF: 0.0296

Gnomad AMR AF: 0.241

Gnomad ASJ AF: 0.184

Gnomad EAS AF: 0.211

Gnomad SAS AF: 0.0918

Gnomad FIN AF: 0.116

Gnomad MID AF: 0.177

Gnomad NFE AF: 0.139

Gnomad OTH AF: 0.164

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

GnomAD4 genome AF: 0.140 AC: 21332 AN: 152146 Hom.: 1706 Cov.: 33 AF XY: 0.142 AC XY: 10523 AN XY: 74366

Gnomad4 AFR AF: 0.105

Gnomad4 AMR AF: 0.242

Gnomad4 ASJ AF: 0.184

Gnomad4 EAS AF: 0.211

Gnomad4 SAS AF: 0.0915

Gnomad4 FIN AF: 0.116

Gnomad4 NFE AF: 0.139

Gnomad4 OTH AF: 0.168

Alfa AF: 0.148 Hom.: 3309

Bravo AF: 0.151

Asia WGS AF: 0.162 AC: 561 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.79
CADD	Benign	2.1
DANN	Benign	0.61

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs4775031; hg19: chr15-58635583;