5-78969006-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM2PP3_StrongPP5

The NM_000046.5(ARSB):​c.499G>A​(p.Gly167Arg) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,122 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 16/25 in silico tools predict a damaging outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

ARSB
NM_000046.5 missense, splice_region

Scores

17
1
1
Splicing: ADA: 1.000
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1

Conservation

PhyloP100: 7.73
Variant links:
Genes affected
ARSB (HGNC:714): (arylsulfatase B) Arylsulfatase B encoded by this gene belongs to the sulfatase family. The arylsulfatase B homodimer hydrolyzes sulfate groups of N-Acetyl-D-galactosamine, chondriotin sulfate, and dermatan sulfate. The protein is targeted to the lysozyme. Mucopolysaccharidosis type VI is an autosomal recessive lysosomal storage disorder resulting from a deficiency of arylsulfatase B. Two alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Dec 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.978
PP5
Variant 5-78969006-C-T is Pathogenic according to our data. Variant chr5-78969006-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 559792.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=1, Likely_pathogenic=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARSBNM_000046.5 linkuse as main transcriptc.499G>A p.Gly167Arg missense_variant, splice_region_variant 2/8 ENST00000264914.10 NP_000037.2 P15848-1A0A024RAJ9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARSBENST00000264914.10 linkuse as main transcriptc.499G>A p.Gly167Arg missense_variant, splice_region_variant 2/81 NM_000046.5 ENSP00000264914.4 P15848-1
ARSBENST00000396151.7 linkuse as main transcriptc.499G>A p.Gly167Arg missense_variant, splice_region_variant 3/81 ENSP00000379455.3 P15848-2
ARSBENST00000565165.2 linkuse as main transcriptc.499G>A p.Gly167Arg missense_variant, splice_region_variant 2/51 ENSP00000456339.2 A0A2U3U034

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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
Cov.:
31
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152122
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Mucopolysaccharidosis type 6 Pathogenic:1Uncertain:1
Uncertain significance, criteria provided, single submittercurationLaboratory of Diagnosis and Therapy of Lysosomal Disorders, University of PadovaJan 01, 2018Absent from GnomAD (PM2) -
Likely pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsJun 10, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.59
D
BayesDel_noAF
Pathogenic
0.61
CADD
Pathogenic
35
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.96
D;.;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Pathogenic
0.58
D
MetaRNN
Pathogenic
0.98
D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.0
H;H;.
PrimateAI
Pathogenic
0.82
D
PROVEAN
Pathogenic
-8.0
D;D;D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
1.0
MutPred
0.85
Gain of catalytic residue at G167 (P = 0.0887);Gain of catalytic residue at G167 (P = 0.0887);Gain of catalytic residue at G167 (P = 0.0887);
MVP
0.99
MPC
0.95
ClinPred
1.0
D
GERP RS
6.1
Varity_R
0.98
gMVP
0.98

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
1.0
SpliceAI score (max)
0.80
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.80
Position offset: 0

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: rs1554087999; hg19: chr5-78264829; API