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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P03915: Variant p.Asp503Gly

NADH-ubiquinone oxidoreductase chain 5
Gene: MT-ND5
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Variant information Variant position: help 503 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 Aspartate (D) to Glycine (G) at position 503 (D503G, p.Asp503Gly). 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 medium size and acidic (D) to glycine (G) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -1 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



Sequence information Variant position: help 503 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 603 The length of the canonical sequence.
Location on the sequence: help PLYLKLTALAVTFLGLLTAL D LNYLTNKLKMKSPLCTFYFS 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                         PLY-----------------LKLTALAVTFLGLLTAL-------DLNYLTNKLKMK-SPLCTFYFS

Gorilla                       PLY-----------------LKLTALSITLLGLLTAL----

                              PHY-----------------LKMTALAVTILGFILAL----

Chimpanzee                    PLY-----------------LKLTALGVTSLGLLTAL----

Mouse                         PWF-----------------LKTTALIISVLGFLIAL----

Rat                           PWH-----------------LKMTALLITILGFAIAL----

Pig                           PLY-----------------MKMTALIVTIMGFMLAL----

Bovine                        PYY-----------------LKTTALIVTILGFILAL----

Rabbit                        PLY-----------------MKMTALFVTIMGFTIAM----

Sheep                         PHY-----------------LKMTALTVTILGFILAL----

Cat                           PYY-----------------LKLTALAVTIAGFILAL----

Horse                         PTY-----------------MKLTALAVTILGFTLAL----

Chicken                       PTI-----------------TKTAAIIVTTLGIILAL----

                              PLY-----------------LKLTALSVTFLGLLTAL----

Xenopus laevis                PTL-----------------AKQAAIIVSVTGLIIAM----

Zebrafish                     PIY-----------------LKLAAILVTLLGIILGL----

Caenorhabditis elegans        SLF----------------------LYVDFFGPLVFL----

Drosophila                    PIY-----------------MKLLTLFVCIVGGLFGY----

Slime mold                    SFFAYPYNNLILESEVLQRELKLLPLFAFIYGVITPVLFYF

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 – 603 NADH-ubiquinone oxidoreductase chain 5



Literature citations
Normal variants of human mitochondrial DNA and translation products: the building of a reference data base.
Marzuki S.; Noer A.S.; Lertrit P.; Thyagarajan D.; Kapsa R.; Utthanaphol P.; Byrne E.;
Hum. Genet. 88:139-145(1991)
Cited for: VARIANTS SER-17; SER-95; PRO-99; ASP-146; VAL-160; SER-165; SER-304; ALA-331 AND GLY-503;
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.