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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q92959: Variant p.Gly222Arg

Solute carrier organic anion transporter family member 2A1
Gene: SLCO2A1
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Variant information Variant position: help 222 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 Glycine (G) to Arginine (R) at position 222 (G222R, p.Gly222Arg). 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 glycine (G) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -2 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 PHOAR2 and PHOAD. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 222 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 643 The length of the canonical sequence.
Location on the sequence: help SNSPLYISILFAISVFGPAF G YLLGSVMLQIFVDYGRVNTA 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                         SNSPLYISILFAISVFGPAFGYLLGSVMLQIFVDYGRVNTA

Mouse                         TNSPLYISILFAIAVFGPAFGYLLGSVMLRIFVDYGRVDTA

Rat                           TNSPLYISILFAIAVFGPAFGYLLGSVMLRIFVDYGRVDTA

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 – 643 Solute carrier organic anion transporter family member 2A1
Transmembrane 216 – 236 Helical; Name=5



Literature citations
Exome sequencing identifies SLCO2A1 mutations as a cause of primary hypertrophic osteoarthropathy.
Zhang Z.; Xia W.; He J.; Zhang Z.; Ke Y.; Yue H.; Wang C.; Zhang H.; Gu J.; Hu W.; Fu W.; Hu Y.; Li M.; Liu Y.;
Am. J. Hum. Genet. 90:125-132(2012)
Cited for: VARIANTS PHOAR2 ARG-222 AND GLU-255; 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; Mutations in the SLCO2A1 gene and primary hypertrophic osteoarthropathy: a clinical and biochemical characterization.
Zhang Z.; He J.W.; Fu W.Z.; Zhang C.Q.; Zhang Z.L.;
J. Clin. Endocrinol. Metab. 98:E923-E933(2013)
Cited for: VARIANTS PHOAR2 165-GLU--ILE-643 DEL; ARG-222; ASP-369; GLU-379 AND LYS-465; INVOLVEMENT IN PHOAD; Monoallelic mutations in SLCO2A1 cause autosomal dominant primary hypertrophic osteoarthropathy.
Xu Y.; Zhang Z.; Yue H.; Li S.; Zhang Z.;
J. Bone Miner. Res. 36:1459-1468(2021)
Cited for: VARIANTS PHOAR2 ARG-181; 207-TYR--ILE-643 DEL; ARG-255; SER-328 AND LEU-374; VARIANTS PHOAD ARG-222; ASP-369; ARG-554 AND 603-ARG--ILE-643 DEL; INVOLVEMENT IN PHOAD;
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.