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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P00846: Variant p.Thr53Ile

ATP synthase subunit a
Gene: MT-ATP6
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Variant information Variant position: help 53 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 Threonine (T) to Isoleucine (I) at position 53 (T53I, p.Thr53Ile). 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 polar (T) to medium size and hydrophobic (I) 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

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


Sequence information Variant position: help 53 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 226 The length of the canonical sequence.
Location on the sequence: help TSKYLINNRLITTQQWLIKL T SKQMMTMHNTKGRTWSLMLV 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                         TS--KYLINNRLITTQQ----WLIKLTSKQMMTMHNTKGRTWSL---MLV

Gorilla                       TS--KYLINNRLIATQQ----WLIQLTSKQMMTMHNAKGRT

                              TP--SRLINNRLISIQQ----WLIQLTSKQMLAIHNQKGRT

Chimpanzee                    TS--KHLINNRLITTQQ----WLIQLTSKQMMTMHSTKGRT

Mouse                         SS--KRLINNRLHSFQH----WLVKLIIKQMMLIHTPKGRT

Rat                           SS--ERLISNRLHSFQH----WLIKLIIKQMMLIHTPKGRT

Pig                           TP--KRLINNRTISIQQ----WLIQLTSKQMMAIHNQKGQT

Bovine                        TS--NRLVSNRFVTLQQ----WMLQLVSKQMMSIHNSKGQT

Rabbit                        SP--SRLINNRLVSTQQ----WLAQLILKQMMLMHSPKGRT

Goat                          SS--NRLINNRLVSLQQ----WALQLMSKQMMSIHNTKGQT

Sheep                         TS--NRLVNNRLISLQQ----WMLQLVSKQMMSIHNTKGQT

Cat                           SP--NRLINNRLVSLQQ----WLVQLTSKQMLAIHNHKGQT

Horse                         SP--NRLINNRLISIQQ----WLVQLTSKQMMAIHNSKGQT

Chicken                       SP-GNRWINNRLSTIQL----WFTHLITKQLMTPLNKAGHK

Xenopus laevis                WPIQSNGFNNRLITLQS----WFLHNFTTIFYQLTSP-GHK

Zebrafish                     AP-TSRWINNRLITVQT----WLTGRFTNQLMTPLNFSGHK

Caenorhabditis elegans        ES-------------------MLNTLVKKFLNSLVGVFSYT

Drosophila                    SI--YWLMPSRYNIMWN----SILLTLHKEFKTLLGPSGHN

Slime mold                    AT---IIGGNNWQHIGEMIYEFVVDLIIEQV-------GKP

Baker's yeast                 NN-NNKIIGSRWLISQEAIYDTIMNMTKGQI------GGKN

Fission yeast                 YGSGAKIVPQKFGIAMEAIYFTMLNLVENQIHSSKTVSGQS

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 – 226 ATP synthase subunit a
Helix 41 – 58



Literature citations
Phylogeny of mitochondrial DNA macrohaplogroup N in India, based on complete sequencing: implications for the peopling of South Asia.
Palanichamy M.G.; Sun C.; Agrawal S.; Bandelt H.-J.; Kong Q.-P.; Khan F.; Wang C.Y.; Chaudhuri T.K.; Palla V.; Zhang Y.-P.;
Am. J. Hum. Genet. 75:966-978(2004)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS THR-7; THR-11; ILE-53; THR-60; ALA-112; VAL-121 AND ILE-213;
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.