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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P55851: Variant p.Ala55Val

Dicarboxylate carrier SLC25A8
Gene: UCP2
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Variant information Variant position: help 55 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Alanine (A) to Valine (V) at position 55 (A55V, p.Ala55Val). 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 small size and hydrophobic (A) to medium size and hydrophobic (V) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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

Polymorphism: help Genetic variations in UCP2 define the body mass index quantitative trait locus 4 (BMIQ4) [MIM:607447]. A common polymorphism in the promoter of UCP2 has been shown to be associated with a decreased risk of obesity in middle-aged individuals. Additional information on the polymorphism described.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 55 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 309 The length of the canonical sequence.
Location on the sequence: help DTAKVRLQIQGESQGPVRAT A SAQYRGVMGTILTMVRTEGP 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                         DTAKVRLQIQGES-------QGPVRATASAQYRGVMGTILTMVRTEGP

                              DTAKVRLQIQGER-------QGPVRAAASAQYRGVLCTILT

Mouse                         DTAKVRLQIQGES-------QGLVRTAASAQYRGVLGTILT

Rat                           DTAKVRLQIQGES-------QGLARTAASAQYRGVLGTILT

Pig                           DTAKVRLQIQGER-------RGPVQAAASAQYRGVLGTILT

Bovine                        DTAKVRLQIQGER-------QGPMQAAASAQYRGVLGTILT

Zebrafish                     DTAKVRLQIQGENKASTNMGRGPVK------YRGVFGTIST

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 – 309 Dicarboxylate carrier SLC25A8
Topological domain 41 – 77 Mitochondrial matrix
Repeat 11 – 106 Solcar 1
Region 16 – 63 Important for interaction with long-chain fatty acids



Literature citations
Cloning and characterization of an uncoupling protein homolog: a potential molecular mediator of human thermogenesis.
Gimeno R.E.; Dembski M.; Weng X.; Deng N.; Shyjan A.W.; Gimeno C.J.; Iris F.; Ellis S.J.; Woolf E.A.; Tartaglia L.A.;
Diabetes 46:900-906(1997)
Cited for: NUCLEOTIDE SEQUENCE [MRNA]; VARIANT VAL-55; Submission
Klannemark M.; Orho M.; Groop L.;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANT VAL-55; Submission
Suzuki Y.; Sugano S.; Totoki Y.; Toyoda A.; Takeda T.; Sakaki Y.; Tanaka A.; Yokoyama S.;
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]; VARIANT VAL-55; Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS VAL-55; GLN-76; GLN-154; GLY-268 AND CYS-282;
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.