Genetic Variant AARSD1:p.His271Pro (chr17-42955207-T-G) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001261434.2(AARSD1):c.812A>C(p.His271Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,814 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H271L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

AARSD1
NM_001261434.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.06

Publications

4 publications found

Variant links:

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]

AARSD1 links:

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]

PTGES3L-AARSD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.796

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AARSD1	NM_001261434.2 link	c.812A>C	p.His271Pro	missense_variant	Exon 8 of 12	ENST00000427569.7	NP_001248363.1	Q9BTE6-1
PTGES3L-AARSD1	NM_001136042.2 link	c.1334A>C	p.His445Pro	missense_variant	Exon 13 of 17		NP_001129514.2	Q9BTE6-3
PTGES3L-AARSD1	NM_025267.4 link	c.1151A>C	p.His384Pro	missense_variant	Exon 13 of 17		NP_079543.1	Q9BTE6-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AARSD1	ENST00000427569.7 link	c.812A>C	p.His271Pro	missense_variant	Exon 8 of 12	5	NM_001261434.2	ENSP00000400870.1		Q9BTE6-1
PTGES3L-AARSD1	ENST00000421990.7 link	c.1205A>C	p.His402Pro	missense_variant	Exon 13 of 17	2		ENSP00000409924.2		B3KSP9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000796

AC:

AN:

251400

AF XY:

0.0000147

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727222

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111984

Other (OTH)

AF:

0.00

AC:

AN:

60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000203), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.083

T;.;.;T;.

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.87

D;D;.;D;D

M_CAP

Benign

0.018

MetaRNN

Pathogenic

0.80

D;D;D;D;D

MetaSVM

Benign

-0.29

MutationAssessor

Uncertain

2.8

M;.;.;.;.

PhyloP100

7.1

PrimateAI

Uncertain

0.59

PROVEAN

Pathogenic

-9.7

D;D;D;D;D

REVEL

Uncertain

0.48

Sift

Pathogenic

0.0

D;D;T;D;T

Sift4G

Uncertain

0.0070

D;T;T;T;T

Polyphen

1.0

D;.;.;D;.

Vest4

0.80

MutPred

0.54

.;.;.;Loss of helix (P = 0.0626);.;

MVP

0.51

MPC

0.21

ClinPred

1.0

GERP RS

5.6

Varity_R

0.96

gMVP

0.91

Mutation Taster

=18/82

disease causing

(source)

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

Publications

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chr17-42955207-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over