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UniProtKB/Swiss-Prot Q9NP58: Variant p.Gln555Lys

ATP-binding cassette sub-family B member 6, mitochondrial
Gene: ABCB6
Variant information

Variant position:  555
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants implicated in disease according to literature reports.
  • Polymorphism: Variants not reported to be implicated in disease.
  • Unclassified: Variants with uncertain implication in disease according to literature reports. Evidence against or in favor of a pathogenic role is limited and/or conflicting.

Residue change:  From Glutamine (Q) to Lysine (K) at position 555 (Q555K, p.Gln555Lys).
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:  Change from medium size and polar (Q) to large size and basic (K)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  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

Involvement in disease:  Dyschromatosis universalis hereditaria 3 (DUH3) [MIM:615402]: An autosomal dominant pigmentary genodermatosis characterized by a mixture of hyperpigmented and hypopigmented macules distributed randomly over the body, that appear in infancy or early childhood. The trunk and extremities are the dominant sites of abnormal pigmentation. Facial lesions can be seen in 50% of affected individuals, but involvement of palms and soles is unusual. Abnormalities of hair and nails have also been reported. Dyschromatosis universalis hereditaria may be associated with abnormalities of dermal connective tissue, nerve tissue, or other systemic complications. {ECO:0000269|PubMed:23519333, ECO:0000269|PubMed:24224009, ECO:0000269|PubMed:24498303, ECO:0000269|PubMed:25288164}. Note=The disease is caused by mutations affecting the gene represented in this entry.
The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:  In DUH3.
Any additional useful information about the variant.

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



Sequence information

Variant position:  555
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  842
The length of the canonical sequence.

Location on the sequence:   TYIIQLYMPLNWFGTYYRMI  Q TNFIDMENMFDLLKEETEVK
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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         TYIIQLYMPLNWFGTYYRMIQTNFIDMENMFDLLKEETEVK

Mouse                         TYITQLYMPLNWFGTYYRMIQTNFIDMENMFDLLKEETEVK

Rat                           TYITQLYMPLNWFGTYYRMIQTNFIDMENMFDLLKEETEVK

Xenopus tropicalis            TYIIQLYTPLNWFGTYYRMIQSSFIDMENMFELFNEDQEVK

Slime mold                    TFIAQMFSPLSWLGSSYRMILTAFTDMENLFELLDTQPEVS

Sequence annotation in neighborhood:  
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 – 842 ATP-binding cassette sub-family B member 6, mitochondrial
Domain 265 – 556 ABC transmembrane type-1


Literature citations

Novel mutations of ABCB6 associated with autosomal dominant dyschromatosis universalis hereditaria.
Cui Y.X.; Xia X.Y.; Zhou Y.; Gao L.; Shang X.J.; Ni T.; Wang W.P.; Fan X.B.; Yin H.L.; Jiang S.J.; Yao B.; Hu Y.A.; Wang G.; Li X.J.;
PLoS ONE 8:E79808-E79808(2013)
Cited for: VARIANT DUH3 LYS-555;

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.