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UniProtKB/Swiss-Prot P15848: Variant p.Arg95Gln

Arylsulfatase B
Gene: ARSB
Variant information

Variant position:  95
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Arginine (R) to Glutamine (Q) at position 95 (R95Q, p.Arg95Gln).
Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.

Physico-chemical properties:  Change from large size and basic (R) to medium size and polar (Q)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  1
The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Involvement in disease:  Mucopolysaccharidosis 6 (MPS6) [MIM:253200]: An autosomal recessive lysosomal storage disease characterized by intracellular accumulation of dermatan sulfate. Clinical features can include abnormal growth, short stature, stiff joints, skeletal malformations, corneal clouding, hepatosplenomegaly, and cardiac abnormalities. A wide variation in clinical severity is observed. {ECO:0000269|PubMed:10036316, ECO:0000269|PubMed:10738004, ECO:0000269|PubMed:11802522, ECO:0000269|PubMed:14974081, ECO:0000269|PubMed:1550123, ECO:0000269|PubMed:1718978, ECO:0000269|PubMed:19259130, ECO:0000269|PubMed:8116615, ECO:0000269|PubMed:8125475, ECO:0000269|PubMed:8541342, ECO:0000269|PubMed:8651289}. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In MPS6; mild/severe form.
Any additional useful information about the variant.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  95
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  533
The length of the canonical sequence.

Location on the sequence:   LAAGGVLLDNYYTQPLCTPS  R SQLLTGRYQIRTGLQHQIIW
The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.

Residue conservation: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         LAAGGVLLDNYYTQPLCTPSRSQLLTGRYQIRTGLQHQIIW

Mouse                         LAAGGVVLDNYYVQPLCTPSRSQLLTGRYQIHLGLQHYLIM

Rat                           LAAGGVVLDNYYVQPLCTPSRSQLLTGRYQIHMGLQHYLIM

Cat                           LAAGGVLLDNYYTQPLCTPSRSQLLTGRYQIHTGLQHQIIW

Slime mold                    LLMSMMMLSNYMEQANIWGMASKILL--------------W

Sequence annotation in neighborhood:  
The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.

TypePositionsDescription
Chain 37 – 533 Arylsulfatase B
Active site 91 – 91 Nucleophile
Metal binding 91 – 91 Calcium; via 3-oxoalanine
Modified residue 91 – 91 3-oxoalanine (Cys)
Helix 91 – 100


Literature citations

Identification, expression, and biochemical characterization of N-acetylgalactosamine-4-sulfatase mutations and relationship with clinical phenotype in MPS6 patients.
Litjens T.; Brooks D.A.; Peters C.; Gibson G.J.; Hopwood J.J.;
Am. J. Hum. Genet. 58:1127-1134(1996)
Cited for: VARIANTS MPS6 MET-92; GLN-95; CYS-210; PRO-393 AND PRO-498;

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.