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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q01968: Variant p.Arg500Gln

Inositol polyphosphate 5-phosphatase OCRL
Gene: OCRL
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Variant information Variant position: help 500 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 Arginine (R) to Glutamine (Q) at position 500 (R500Q, p.Arg500Gln). 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 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: help 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

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


Sequence information Variant position: help 500 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 901 The length of the canonical sequence.
Location on the sequence: help DSKTDRWDSSGKCRVPAWCD R ILWRGTNVNQLNYRSHMELK 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                         DSKTDRWDSSGKCRVPAWCDRILWRGTNVNQLNYRSHMELK

Mouse                         DSKTDRWDSSGKCRVPAWCDRILWRGINVNQLHYRSHMELK

Rat                           DSKTDRWDSSGKCRVPAWCDRILWRGINVNQLHYRSHMELK

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 1 – 901 Inositol polyphosphate 5-phosphatase OCRL
Region 237 – 563 5-phosphatase
Mutagenesis 499 – 499 D -> A. Does not affect interaction with RAB8A.
Beta strand 499 – 504



Literature citations
Mutations are not uniformly distributed throughout the OCRL1 gene in Lowe syndrome patients.
Lin T.; Orrison B.M.; Suchy S.F.; Lewis R.A.; Nussbaum R.L.;
Mol. Genet. Metab. 64:58-61(1998)
Cited for: VARIANTS OCRL TYR-375; GLN-500; ASP-508 AND CYS-513; Oculocerebrorenal syndrome of Lowe: three mutations in the OCRL1 gene derived from three patients with different phenotypes.
Kawano T.; Indo Y.; Nakazato H.; Shimadzu M.; Matsuda I.;
Am. J. Med. Genet. 77:348-355(1998)
Cited for: VARIANTS OCRL GLN-500 AND GLN-524; Carrier assessment in families with Lowe oculocerebrorenal syndrome: novel mutations in the OCRL1 gene and correlation of direct DNA diagnosis with ocular examination.
Roeschinger W.; Muntau A.C.; Rudolph G.; Roscher A.A.; Kammerer S.;
Mol. Genet. Metab. 69:213-222(2000)
Cited for: VARIANTS OCRL 478-LYS-TYR-479 DEL; GLN-500 AND LEU-526;
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.