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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q8NI60: Variant p.Gly272Asp

Atypical kinase COQ8A, mitochondrial
Gene: COQ8A
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Variant information Variant position: help 272 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Glycine (G) to Aspartate (D) at position 272 (G272D, p.Gly272Asp). 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 glycine (G) to medium size and acidic (D) 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

Variant description: help In COQ10D4. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 272 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 647 The length of the canonical sequence.
Location on the sequence: help SPFLSEANAERIVRTLCKVR G AALKLGQMLSIQDDAFINPH 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                         SPFLSEANAERIVRTLCKVRGAALKLGQMLSIQDDAFINPH

Mouse                         SPFLSEANAERIVSTLCKVRGAALKLGQMLSIQDDAFINPH

Rat                           SPFLSEANAERIVSTLCKVRGAALKLGQMLSIQDDAFINPH

Bovine                        SPFLSEANAERIVRTLCKVRGAALKLGQMLSIQDDAFINPH

Zebrafish                     SPFLSEANAERIVRTLCKVRGAALKLGQMLSIQDDAFINPQ

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 163 – 647 Atypical kinase COQ8A, mitochondrial
Alternative sequence 1 – 484 Missing. In isoform 2.
Alternative sequence 1 – 279 Missing. In isoform 4.
Mutagenesis 276 – 276 K -> RH. Does not affect selectivity for binding ADP or ATP. Impaired multi-subunit COQ enzyme complex.
Mutagenesis 279 – 279 Q -> RH. Does not affect selectivity for binding ADP or ATP.
Helix 271 – 281



Literature citations
CABC1 gene mutations cause ubiquinone deficiency with cerebellar ataxia and seizures.
Mollet J.; Delahodde A.; Serre V.; Chretien D.; Schlemmer D.; Lombes A.; Boddaert N.; Desguerre I.; de Lonlay P.; de Baulny H.O.; Munnich A.; Roetig A.;
Am. J. Hum. Genet. 82:623-630(2008)
Cited for: VARIANTS COQ10D4 TRP-213; VAL-272; ASP-272 AND LYS-551; Adult-onset cerebellar ataxia due to mutations in CABC1/ADCK3.
Horvath R.; Czermin B.; Gulati S.; Demuth S.; Houge G.; Pyle A.; Dineiger C.; Blakely E.L.; Hassani A.; Foley C.; Brodhun M.; Storm K.; Kirschner J.; Gorman G.S.; Lochmuller H.; Holinski-Feder E.; Taylor R.W.; Chinnery P.F.;
J. Neurol. Neurosurg. Psych. 83:174-178(2012)
Cited for: VARIANTS COQ10D4 TRP-213; CYS-271; ASP-272; VAL-272; TRP-299; THR-304; VAL-304; CYS-429; SER-549 AND LYS-551;
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.