17-42954900-C-T

Variant names:

• chr17-42954900-C-T
• rs751629403
• NM_001261434.2:c.929G>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001261434.2(AARSD1):​c.929G>A​(p.Trp310*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: AARSD1 NM_001261434.2 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.56
• Publications: 0 publications found

Genes affected

AARSD1 (HGNC:28417): (alanyl-tRNA synthetase domain containing 1) Predicted to enable Ser-tRNA(Ala) hydrolase activity. Predicted to be involved in regulation of translational fidelity. Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

PTGES3L-AARSD1 (HGNC:43946): (PTGES3L-AARSD1 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring PTGES3L (prostaglandin E synthase 3 (cytosolic)-like) and AARSD1(alanyl-tRNA synthetase domain containing 1) genes on chromosome 17. The readthrough transcript encodes a fusion protein that shares sequence identity with each individual gene product. [provided by RefSeq, May 2012]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AARSD1	NM_001261434.2	c.929G>A	p.Trp310*	stop_gained	Exon 9 of 12	ENST00000427569.7	NP_001248363.1
PTGES3L-AARSD1	NM_001136042.2	c.1451G>A	p.Trp484*	stop_gained	Exon 14 of 17		NP_001129514.2
PTGES3L-AARSD1	NM_025267.4	c.1268G>A	p.Trp423*	stop_gained	Exon 14 of 17		NP_079543.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AARSD1	ENST00000427569.7	c.929G>A	p.Trp310*	stop_gained	Exon 9 of 12	5	NM_001261434.2	ENSP00000400870.1
PTGES3L-AARSD1	ENST00000421990.7	c.1322G>A	p.Trp441*	stop_gained	Exon 14 of 17	2		ENSP00000409924.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461818 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727204

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

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

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111974

Other (OTH) AF: 0.00 AC: 0 AN: 60392

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.60	D
BayesDel_noAF	Pathogenic	0.62
CADD	Pathogenic	37
DANN	Uncertain	0.99
Eigen	Pathogenic	0.98
Eigen_PC	Pathogenic	0.82
FATHMM_MKL	Uncertain	0.93	D
PhyloP100		2.6
Vest4		0.36
GERP RS		5.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.34		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.34		Position offset: -24

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

Other links and lift over

dbSNP: rs751629403; hg19: chr17-41106917;