UniProtKB/Swiss-Prot Q9Y5X4: Variant p.Gly56Arg

Photoreceptor-specific nuclear receptor
Gene: NR2E3
Chromosomal location: 15q23
Variant information

Variant position:  56
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 have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Glycine (G) to Arginine (R) at position 56 (G56R, p.Gly56Arg).
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 glycine (G) 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 37 (RP37) [MIM:611131]: 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. 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 RP37.
Any additional useful information about the variant.



Sequence information

Variant position:  56
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  410
The length of the canonical sequence.

Location on the sequence:   EDPTGVSPSLQCRVCGDSSS  G KHYGIYACNGCSGFFKRSVR
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                         EDPTGVSPSLQCRVCGDSSSGKHYGIYACNGCSGFFKRSVR

Mouse                         EDPTGVGPSLQCRVCGDSSSGKHYGIYACNGCSGFFKRSVR

Bovine                        EEPTGVGPSLQCRVCGDSSSGKHYGIYACNGCSGFFKRSVR

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 – 410 Photoreceptor-specific nuclear receptor
DNA binding 44 – 120 Nuclear receptor
Zinc finger 47 – 67 NR C4-type


Literature citations

Recurrent mutation in the first zinc finger of the orphan nuclear receptor NR2E3 causes autosomal dominant retinitis pigmentosa.
Coppieters F.; Leroy B.P.; Beysen D.; Hellemans J.; De Bosscher K.; Haegeman G.; Robberecht K.; Wuyts W.; Coucke P.J.; De Baere E.;
Am. J. Hum. Genet. 81:147-157(2007)
Cited for: VARIANT RP37 ARG-56;

Mutations in NR2E3 can cause dominant or recessive retinal degenerations in the same family.
Escher P.; Gouras P.; Roduit R.; Tiab L.; Bolay S.; Delarive T.; Chen S.; Tsai C.C.; Hayashi M.; Zernant J.; Merriam J.E.; Mermod N.; Allikmets R.; Munier F.L.; Schorderet D.F.;
Hum. Mutat. 30:342-351(2009)
Cited for: VARIANT RP37 ARG-56; VARIANT ESCS GLN-311;

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.