UniProtKB/SwissProt variant VAR

Variant information

Variant position:

64

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

Type of variant:

Polymorphism

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 Arginine (R) to Tryptophan (W) at position 64 (R64W, p.Arg64Trp).

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 large size and basic (R) to large size and aromatic (W)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

-3

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:

Links to websites of interest for the variant.

Variant rs557180313 [ dbSNP | Ensembl ]

Sequence information

Variant position:

64

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

Protein sequence length:

1503

The length of the canonical sequence.

Location on the sequence:

LWVLGPIYLLFIHHHGRGYL R MSPLFKAKMVLGFALIVLCT

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                         LWVLGPIYLLFIHHHGRGYLRMSPLFKAKMVLGFALIVLCT

Mouse                         LWVLGPIYLLYIHRHGRCYLRMSHLFKTKMVLGLALILLYT

Rat                           LWVLGPIYLLYIHRHGCCYLRMSRLFKIKMVLGFALILLYT

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.

Type	Positions	Description
Chain	1 – 1503	Multidrug resistance-associated protein 6
Topological domain	53 – 72	Cytoplasmic

Literature citations

Expression of human MRP6, a homologue of the multidrug resistance protein gene MRP1, in tissues and cancer cells.
Kool M.; van der Linden M.; de Haas M.; Baas F.; Borst P.;
Cancer Res. 59:175-182(1999)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); VARIANTS TRP-64 AND VAL-848;

Genome duplications and other features in 12 Mb of DNA sequence from human chromosome 16p and 16q.
Loftus B.J.; Kim U.-J.; Sneddon V.P.; Kalush F.; Brandon R.; Fuhrmann J.; Mason T.; Crosby M.L.; Barnstead M.; Cronin L.; Mays A.D.; Cao Y.; Xu R.X.; Kang H.-L.; Mitchell S.; Eichler E.E.; Harris P.C.; Venter J.C.; Adams M.D.;
Genomics 60:295-308(1999)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]; VARIANTS TRP-64 AND VAL-848;

Identification of two polymorphisms (c189G>C; c190T>C) in exon 2 of the human MRP6 gene (ABCC6) by screening of Pseudoxanthoma elasticum patients: possible sequence correction?
Germain D.P.; Perdu J.; Remones V.; Manzoni K.; Jeunemaitre X.;
Hum. Mutat. 16:449-449(2000)
Cited for: VARIANT TRP-64;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O95255: Variant p.Arg64Trp