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UniProtKB/Swiss-Prot P16615: Variant p.Gly749Arg

Sarcoplasmic/endoplasmic reticulum calcium ATPase 2
Gene: ATP2A2
Variant information

Variant position:  749
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  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:  From Glycine (G) to Arginine (R) at position 749 (G749R, p.Gly749Arg).
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

Variant description:  In DD.
Any additional useful information about the variant.



Sequence information

Variant position:  749
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  1042
The length of the canonical sequence.

Location on the sequence:   ASEMVLADDNFSTIVAAVEE  G RAIYNNMKQFIRYLISSNVG
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                         ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

                              ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Mouse                         ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Rat                           ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Pig                           ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Rabbit                        ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Cat                           ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

Chicken                       ASEMVLADDNFSTIVAAVEEGRAIYNNMKQFIRYLISSNVG

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 – 1042 Sarcoplasmic/endoplasmic reticulum calcium ATPase 2
Topological domain 314 – 756 Cytoplasmic
Metal binding 767 – 767 Calcium 2
Helix 740 – 780


Literature citations

Mutations in ATP2A2, encoding a Ca2+ pump, cause Darier disease.
Sakuntabhai A.; Ruiz-Perez V.; Carter S.; Jacobsen N.; Burge S.; Monk S.; Smith M.; Munro C.S.; O'Donovan M.C.; Craddock N.; Kucherlapati R.; Rees J.L.; Owen M.J.; Lathrop G.M.; Monaco A.P.; Strachan T.; Hovnanian A.;
Nat. Genet. 21:271-277(1999)
Cited for: VARIANTS DD GLU-23; LYS-357; PHE-495 AND ARG-749;

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.