22-50627213-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 6P and 2B. PM1PM2PM5BP4_Moderate

The NM_000487.6(ARSA):​c.418C>A​(p.His140Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,612,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign 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. H140D) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ARSA
NM_000487.6 missense

Scores

2
15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.93
Variant links:
Genes affected
ARSA (HGNC:713): (arylsulfatase A) The protein encoded by this gene hydrolyzes cerebroside sulfate to cerebroside and sulfate. Defects in this gene lead to metachromatic leucodystrophy (MLD), a progressive demyelination disease which results in a variety of neurological symptoms and ultimately death. Alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Dec 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_000487.6
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr22-50627213-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 68132.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.20933065).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARSANM_000487.6 linkuse as main transcriptc.418C>A p.His140Asn missense_variant 2/8 ENST00000216124.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARSAENST00000216124.10 linkuse as main transcriptc.418C>A p.His140Asn missense_variant 2/81 NM_000487.6 P1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152042
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1459960
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
726208
show subpopulations
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:
0.00000540
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152042
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74278
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
0.0019
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
15
DANN
Benign
0.75
DEOGEN2
Benign
0.22
T;T;T;.;T
Eigen
Benign
-0.55
Eigen_PC
Benign
-0.32
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.83
.;.;.;T;T
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.21
T;T;T;T;T
MetaSVM
Benign
-0.31
T
MutationTaster
Benign
0.60
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
0.41
N;N;N;N;N
REVEL
Benign
0.24
Sift
Benign
0.78
T;T;T;T;T
Sift4G
Benign
0.74
T;T;T;T;T
Vest4
0.30
MVP
0.83
ClinPred
0.12
T
GERP RS
3.7
gMVP
0.78

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs199476358; hg19: chr22-51065641; API