X-2946122-C-A

Variant names:

• chrX-2946122-C-A
• NM_000047.3:c.867G>T
• ARSL p.Gly289Gly

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_000047.3(ARSL):​c.867G>T​(p.Gly289Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. G289G) has been classified as Benign.

• Frequency: Genomes: not found (cov: 22)
• Consequence: ARSL NM_000047.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.03
• Publications: 0 publications found

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]

ARSL Gene-Disease associations (from GenCC):

• X-linked chondrodysplasia punctata 1

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, ClinGen

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).
• BP7: Synonymous conserved (PhyloP=-2.03 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000047.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARSL	NM_000047.3	MANE Select	c.867G>T	p.Gly289Gly	synonymous	Exon 7 of 11	NP_000038.2	P51690
	ARSL	NM_001282628.2		c.942G>T	p.Gly314Gly	synonymous	Exon 8 of 12	NP_001269557.1	F5GYY5
	ARSL	NM_001369080.1		c.942G>T	p.Gly314Gly	synonymous	Exon 8 of 12	NP_001356009.1	F5GYY5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARSL	ENST00000381134.9	TSL:1 MANE Select	c.867G>T	p.Gly289Gly	synonymous	Exon 7 of 11	ENSP00000370526.3	P51690
	ARSL	ENST00000545496.6	TSL:2	c.942G>T	p.Gly314Gly	synonymous	Exon 8 of 12	ENSP00000441417.1	F5GYY5
	ARSL	ENST00000672027.1		c.942G>T	p.Gly314Gly	synonymous	Exon 8 of 12	ENSP00000500220.1	F5GYY5

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 22

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.12
DANN	Benign	0.35
PhyloP100		-2.0

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chrX-2864163;