Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P51970: Variant p.Arg98Leu

NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8
Gene: NDUFA8
Feedback?
Variant information Variant position: help 98 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 Arginine (R) to Leucine (L) at position 98 (R98L, p.Arg98Leu). 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 large size and basic (R) to medium size and hydrophobic (L) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -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: help In MC1DN37; defect in the assembly of respiratory chain complex I; reduced enzymatic activity of the respiratory chain complex I; altered fibroblast mitochondria morphology and reduced mitochondrial network branching; no significant differences in mitochondrial respiratory capacity. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 98 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 172 The length of the canonical sequence.
Location on the sequence: help CAEPFTEYWTCIDYTGQQLF R HCRKQQAKFDECVLDKLGWV 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                         CAEPFTEYWTCIDYTGQQLFRHCRKQQAKFDECVLDKLGWV

Gorilla                       CAEPFTEYWTCIDYTGQQLFRHCRKQQAKFDECVLDKLGWV

Chimpanzee                    CAEPFTEYWTCIDYTGQQLFRHCRKQQAKFDECVLDKLGWV

Mouse                         CAEPFTEYWTCLDYSNMQLFRHCRQQQAKFDQCVLDKLGWV

Bovine                        CAEPFTEYWTCIDYSGLQLFRRCRKQQAQFDECVLDKLGWV

Slime mold                    CQKELNESVKCIEENNMRTIP-CEEENKAFNEC-FDKL--V
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 2 – 172 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8
Domain 75 – 118 CHCH 2
Disulfide bond 78 – 110
Disulfide bond 88 – 100



Literature citations
Biallelic mutations in NDUFA8 cause complex I deficiency in two siblings with favorable clinical evolution.
Tort F.; Barredo E.; Parthasarathy R.; Ugarteburu O.; Ferrer-Cortes X.; Garcia-Villoria J.; Gort L.; Gonzalez-Quintana A.; Martin M.A.; Fernandez-Vizarra E.; Zeviani M.; Ribes A.;
Mol. Genet. Metab. 131:349-357(2020)
Cited for: VARIANT MC1DN37 LEU-98; CHARACTERIZATION OF VARIANT MC1DN37 LEU-98; FUNCTION;
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.