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UniProtKB/Swiss-Prot P23942: Variant p.Pro210Arg

Peripherin-2
Gene: PRPH2
Variant information

Variant position:  210
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 Proline (P) to Arginine (R) at position 210 (P210R, p.Pro210Arg).
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 medium size and hydrophobic (P) to large size and basic (R)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -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

Involvement in disease:  Retinitis pigmentosa 7 (RP7) [MIM:608133]: A retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. {ECO:0000269|PubMed:10627133, ECO:0000269|PubMed:11485765, ECO:0000269|PubMed:1427912, ECO:0000269|PubMed:16799052, ECO:0000269|PubMed:1684223, ECO:0000269|PubMed:1749427, ECO:0000269|PubMed:19038374, ECO:0000269|PubMed:22334370, ECO:0000269|PubMed:26796962, ECO:0000269|PubMed:7862413, ECO:0000269|PubMed:8020945}. 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.

Involvement in disease:  Macular dystrophy, patterned, 1 (MDPT1) [MIM:169150]: A form of retinal patterned dystrophy, a heterogeneous group of macular disorders that includes reticular (fishnet-like) dystrophy, macroreticular (spider-shaped) dystrophy and butterfly-shaped pigment dystrophy. {ECO:0000269|PubMed:16024869, ECO:0000269|PubMed:26796962, ECO:0000269|PubMed:8485574, ECO:0000269|PubMed:9443872}. 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 MDPT1 and RP7; also in adult-onset foveomacular dystrophy with choroidal neovascularization.
Any additional useful information about the variant.

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



Sequence information

Variant position:  210
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  346
The length of the canonical sequence.

Location on the sequence:   KEVKDRIKSNVDGRYLVDGV  P FSCCNPSSPRPCIQYQITNN
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                         KEVKDRIKSNVDGRYLVDGVPFSCCNPSSPRPCIQYQITNN

                              KEVKDRIKSNVDGRYLVDGVPFSCCNPSSPRPCIQYQLTNN

Mouse                         KEVKDRIKSNVDGRYLVDGVPFSCCNPSSPRPCIQYQLTNN

Rat                           KEVKDRIKSNVDGRYLVDGVPFSCCNPSSPRPCIQYQLTNN

Bovine                        KEVKDRIKSNVDGRYLVDGVPFSCCNPNSPRPCIQYQLTNN

Cat                           KEVKDRIKSNVDGRYLVDGVPFSCCNPNSPRPCIQYQLTNN

Chicken                       KEVKDRIKSNVDGRYLVDGVPFSCCNPSSPRPCIQYQVTNN

Xenopus laevis                KEVKDRIQSNVDGKYLIDGVPFSCCNPSSPRPCIQLQVTNN

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 – 346 Peripherin-2
Topological domain 124 – 264 Lumenal
Glycosylation 229 – 229 N-linked (GlcNAc...) asparagine


Literature citations

Choroidal neovascularization in a patient with adult foveomacular dystrophy and a mutation in the retinal degeneration slow gene (Pro 210 Arg).
Feist R.M.; White M.F. Jr.; Skalka H.; Stone E.M.;
Am. J. Ophthalmol. 118:259-260(1994)
Cited for: VARIANT FOVEOMACULAR DYSTROPHY ARG-210;

A peripherin/retinal degeneration slow mutation (Pro-210-Arg) associated with macular and peripheral retinal degeneration.
Gorin M.B.; Jackson K.E.; Ferrell R.E.; Sheffield V.C.; Jacobson S.G.; Gass J.D.; Mitchell E.; Stone E.M.;
Ophthalmology 102:246-255(1995)
Cited for: VARIANT RP7 ARG-210;

Founder effect, seen in the British population, of the 172 peripherin/RDS mutation- and further refinement of genetic positioning of the peripherin/RDS gene.
Payne A.M.; Downes S.M.; Bessant D.A.R.; Bird A.C.; Bhattacharya S.S.;
Am. J. Hum. Genet. 62:192-195(1998)
Cited for: VARIANTS MDPT1 ARG-210; ARG-213 AND TRP-220; VARIANTS MACULAR DYSTROPHY TRP-172 AND ARG-219;

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.