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chr22-50625633-G-C

Variant summary

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

The NM_000487.6(ARSA):ā€‹c.1156C>Gā€‹(p.Arg386Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R386C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 34)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

ARSA
NM_000487.6 missense

Scores

5
11

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 3.27
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 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 chr22-50625633-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 68115.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=4, Uncertain_significance=1, not_provided=2}.
BP4
Computational evidence support a benign effect (MetaRNN=0.20050323).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARSANM_000487.6 linkuse as main transcriptc.1156C>G p.Arg386Gly missense_variant 7/8 ENST00000216124.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARSAENST00000216124.10 linkuse as main transcriptc.1156C>G p.Arg386Gly missense_variant 7/81 NM_000487.6 P1

Frequencies

GnomAD3 genomes
Cov.:
34
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251092
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461500
Hom.:
0
Cov.:
46
AF XY:
0.00
AC XY:
0
AN XY:
727036
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
GnomAD4 genome
Cov.:
34

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

Metachromatic leukodystrophy Other:1
not provided, no classification providedin vitroGelb Laboratory, University of Washington-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.010
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.32
T;T;T;.;T
Eigen
Benign
-0.48
Eigen_PC
Benign
-0.39
FATHMM_MKL
Benign
0.50
N
M_CAP
Benign
0.069
D
MetaRNN
Benign
0.20
T;T;T;T;T
MetaSVM
Uncertain
-0.24
T
MutationTaster
Benign
1.0
N;N;N;N;N;N;N
PrimateAI
Benign
0.24
T
PROVEAN
Benign
-2.0
N;N;N;N;N
REVEL
Uncertain
0.52
Sift
Benign
0.32
T;T;T;T;T
Sift4G
Benign
0.32
T;T;T;T;T
Vest4
0.22
MVP
0.77
ClinPred
0.31
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
gMVP
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs199476370; hg19: chr22-51064061; API