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UniProtKB/Swiss-Prot Q92959: Variant p.Arg445Cys

Solute carrier organic anion transporter family member 2A1
Gene: SLCO2A1
Variant information

Variant position:  445
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LB/B
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:  From Arginine (R) to Cysteine (C) at position 445 (R445C, p.Arg445Cys).
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 (C)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
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

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



Sequence information

Variant position:  445
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  643
The length of the canonical sequence.

Location on the sequence:   VAEVYPPSTSSSIHPQSPAC  R RDCSCPDSIFHPVCGDNGIE
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                         VAEVYPPSTSSSIHPQ-SPACRRDCSCPDSIFHPVCGDNGIE

Mouse                         VAEVYPPSTPSSIHPQ-PPACRRDCLCPDSVFHPVCGDNGV

Rat                           VAEVYPPSTSSSIHPQQPPACRRDCSCPDSFFHPVCGDNGV

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 1 – 643 Solute carrier organic anion transporter family member 2A1
Topological domain 416 – 518 Extracellular
Domain 438 – 496 Kazal-like
Disulfide bond 444 – 474


Literature citations

Prostaglandin transporter mutations cause pachydermoperiostosis with myelofibrosis.
Diggle C.P.; Parry D.A.; Logan C.V.; Laissue P.; Rivera C.; Restrepo C.M.; Fonseca D.J.; Morgan J.E.; Allanore Y.; Fontenay M.; Wipff J.; Varret M.; Gibault L.; Dalantaeva N.; Korbonits M.; Zhou B.; Yuan G.; Harifi G.; Cefle K.; Palanduz S.; Akoglu H.; Zwijnenburg P.J.; Lichtenbelt K.D.; Aubry-Rozier B.; Superti-Furga A.; Dallapiccola B.; Accadia M.; Brancati F.; Sheridan E.G.; Taylor G.R.; Carr I.M.; Johnson C.A.; Markham A.F.; Bonthron D.T.;
Hum. Mutat. 33:1175-1181(2012)
Cited for: VARIANTS PHOAR2 PHE-85; HIS-97; ALA-181; ASP-181; LEU-204; ARG-222; PHE-420 AND GLY-565; VARIANT CYS-445; CHARACTERIZATION OF VARIANT PHOAR2 PHE-420;

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.