chrX-2934843-C-T

Position:

• chrX-2934843-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000047.3(ARSL):​c.1759G>A​(p.Asp587Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000184 in 1,085,611 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 22)
  • Exomes 𝑓: 0.0000018 (0 hom. 1 hem.)
• Consequence: ARSL NM_000047.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.611

Genes affected

ARSL (HGNC:719): (arylsulfatase L) Arylsulfatase E is a member of the sulfatase family. It is glycosylated postranslationally and localized to the golgi apparatus. Sulfatases are essential for the correct composition of bone and cartilage matrix. X-linked chondrodysplasia punctata, a disease characterized by abnormalities in cartilage and bone development, has been linked to mutations in this gene. Alternative splicing results in multiple transcript variants. A pseudogene related to this gene is located on the Y chromosome. [provided by RefSeq, Sep 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11234823).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ARSL	NM_000047.3	c.1759G>A	p.Asp587Asn	missense_variant	11/11	ENST00000381134.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ARSL	ENST00000381134.9	c.1759G>A	p.Asp587Asn	missense_variant	11/11	1	NM_000047.3	P4

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome AF: 0.00000184 AC: 2 AN: 1085611 Hom.: 0 Cov.: 28 AF XY: 0.00000283 AC XY: 1 AN XY: 352893

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000439

GnomAD4 genome Cov.: 22

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.00 AC: 0

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Chondrodysplasia punctata, brachytelephalangic, autosomal Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Jul 29, 2023

This variant has not been reported in the literature in individuals affected with ARSE-related conditions. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on ARSE protein function. ClinVar contains an entry for this variant (Variation ID: 1683175). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 587 of the ARSE protein (p.Asp587Asn). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.077
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.46
CADD	Benign	6.0
DANN	Uncertain	0.99
DEOGEN2	Benign	0.27	T;.;T
FATHMM_MKL	Benign	0.037	N
LIST_S2	Benign	0.76	T;T;T
M_CAP	Uncertain	0.13	D
MetaRNN	Benign	0.11	T;T;T
MetaSVM	Uncertain	-0.080	T
MutationAssessor	Benign	1.6	.;.;L
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-1.4	N;N;N
REVEL	Benign	0.19
Sift	Benign	0.10	T;T;T
Sift4G	Benign	0.083	T;T;T
Polyphen		0.14	B;B;B
Vest4		0.080
MutPred		0.23		Loss of disorder (P = 0.149);.;.;
MVP		0.82
MPC		0.54
ClinPred		0.17	T
GERP RS		0.026
Varity_R		0.080
gMVP		0.42

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

LitVar

Other links and lift over

dbSNP: rs753500701; hg19: chrX-2852884;