ARSB

Chr 5AR

arylsulfatase B

Also known as: ASB, G4S, MPS6

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]

OMIMResearchGenerating clinical summary…
LOFmechanismARLOEUF 1.061 OMIM phenotype
Clinical SummaryARSB
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Gene-Disease Validity (ClinGen)
mucopolysaccharidosis type 6 · ARDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint?
1.06LOEUF
pLI 0.000
Z-score 1.33
OE 0.70 (0.471.06)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint?
0.63Z-score
OE missense 0.89 (0.810.99)
254 obs / 283.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.70 (0.471.06)
00.351.4
Missense OE?0.89 (0.810.99)
00.61.4
Synonymous OE?0.94
01.21.6
LoF obs/exp: 16 / 22.9Missense obs/exp: 254 / 283.9Syn Z: 0.52
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitiveARSB-related mucopolysaccharidosisLOFAR

This gene — mechanism propensity

Predictions shown for reference only — model trained on dominant genes, not applicable to AR conditions.

DN
0.7229th %ile
GOF
0.6247th %ile
LOF
0.2874th %ile

The Badonyi & Marsh prediction model was trained exclusively on dominant disease genes. Predictions are not reliable for genes with autosomal recessive inheritance and are shown at reduced opacity for reference only.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

ARSB · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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