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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O75027: Variant p.Glu208Asp

Iron-sulfur clusters transporter ABCB7, mitochondrial
Gene: ABCB7
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Variant information Variant position: help 208 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 Glutamate (E) to Aspartate (D) at position 208 (E208D, p.Glu208Asp). 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 Similar physico-chemical property. Both residues are medium size and acidic. 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 SCAX6. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 208 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 752 The length of the canonical sequence.
Location on the sequence: help MATAVLIGYGVSRAGAAFFN E VRNAVFGKVAQNSIRRIAKN 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                         MATAVLIGYGVSRAGAAFFNE-------------------VRNAVFGKVAQNSIRRIAKN

Mouse                         MATAVLIGYGVSRAGAAFFNE-------------------V

Rat                           MATAVLIGYGVSRAGAAFFNE-------------------V

Zebrafish                     MATAVLIGYGVSRTGSALFNE-------------------L

Slime mold                    TTNPTVLESITSKYTSLFGNTEYDFKWIIIIVLVQTPFLFA
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 23 – 752 Iron-sulfur clusters transporter ABCB7, mitochondrial
Topological domain 207 – 259 Mitochondrial matrix
Domain 140 – 436 ABC transmembrane type-1
Modified residue 216 – 216 N6-acetyllysine
Helix 186 – 233



Literature citations
X-linked sideroblastic anemia and ataxia: A new family with identification of a fourth ABCB7 gene mutation.
D'Hooghe M.; Selleslag D.; Mortier G.; Van Coster R.; Vermeersch P.; Billiet J.; Bekri S.;
Eur. J. Paediatr. Neurol. 16:730-735(2012)
Cited for: VARIANT SCAX6 ASP-208;
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.