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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P08236: Variant p.Leu176Phe

Beta-glucuronidase
Gene: GUSB
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Variant information Variant position: help 176 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LP/P [Disclaimer] The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change: help From Leucine (L) to Phenylalanine (F) at position 176 (L176F, p.Leu176Phe). 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: help Change from medium size and hydrophobic (L) to large size and aromatic (F) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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

Variant description: help In MPS7. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 176 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 651 The length of the canonical sequence.
Location on the sequence: help LVQVGPLPSRLRITIAINNT L TPTTLPPGTIQYLTDTSKYP 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: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         LVQVGPLPSRLRITIAINNTLTPTTLPPGTIQYLTDTSKYP

                              LVQSGPLSS-CRITLAINNTLTPHTLPPGTIVYKTDASKYP

Mouse                         LVQSGPLTT-CRITIAINNTLTPHTLPPGTIVYKTDTSMYP

Rat                           LVQSGPLTT-FRVTIAINNTLTPYTLPPGTIVYKTDPSMYP

Pig                           LVQTGPLSS-CRITIAINNTLSPHTLPPGTILYKTDTSKYP

Cat                           LVQSGPLAS-CRITIAINNTLTPHTLPPGTILYQTDTSKYP

Sequence annotation in neighborhood: help 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 23 – 651 Beta-glucuronidase
Glycosylation 173 – 173 N-linked (GlcNAc...) asparagine
Alternative sequence 159 – 304 Missing. In isoform 3.



Literature citations
Overexpression rescues the mutant phenotype of L176F mutation causing beta-glucuronidase deficiency mucopolysaccharidosis in two Mennonite siblings.
Wu B.M.; Tomatsu S.; Fukuda S.; Sukegawa K.; Orii T.; Sly W.S.;
J. Biol. Chem. 269:23681-23688(1994)
Cited for: VARIANT MPS7 PHE-176; VARIANT PRO-649; A pseudodeficiency allele (D152N) of the human beta-glucuronidase gene.
Vervoort R.; Islam M.R.; Sly W.; Chabas A.; Wevers R.; de Jong J.; Liebaers I.; Lissens W.;
Am. J. Hum. Genet. 57:798-804(1995)
Cited for: VARIANT MPS7 PHE-176; VARIANT ASN-152; CHARACTERIZATION OF VARIANT ASN-152; Molecular analysis of patients with beta-glucuronidase deficiency presenting as hydrops fetalis or as early mucopolysaccharidosis VII.
Vervoort R.; Islam M.R.; Sly W.S.; Zabot M.T.; Kleijer W.J.; Chabas A.; Fensom A.; Young E.P.; Liebaers I.; Lissens W.;
Am. J. Hum. Genet. 58:457-471(1996)
Cited for: VARIANTS MPS7 ARG-136; LYS-150; PHE-176; TRP-216; CYS-320; SER-320; TYR-351; CYS-374; CYS-382; HIS-382; PRO-435; TRP-477; CYS-508; ASP-572; ASN-606 AND CYS-627; Mucopolysaccharidosis VII: clinical, biochemical and molecular investigation of a Brazilian family.
Schwartz I.; Silva L.R.; Leistner S.; Todeschini L.A.; Burin M.G.; Pina-Neto J.M.; Islam R.M.; Shah G.N.; Sly W.S.; Giugliani R.;
Clin. Genet. 64:172-175(2003)
Cited for: VARIANT MPS7 PHE-176;
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.