UniProtKB/SwissProt variant VAR

Variant information

Variant position:

254

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 Threonine (T) to Methionine (M) at position 254 (T254M, p.Thr254Met).

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 (T) to medium size and hydrophobic (M)

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

Variant description:

In ALD; AMN-type.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs1131691743 [ dbSNP | Ensembl ]

Sequence information

Variant position:

254

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

Protein sequence length:

745

The length of the canonical sequence.

Location on the sequence:

RSRGAGTAWPSAIAGLVVFL T ANVLRAFSPKFGELVAEEAR

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                         RSRGAGTAW--PSAIAGLVVFLTANVLRAFSPKFGELVAEEAR

Mouse                         RSRGAGTAW--PSAIAGLVVFLTANVLRAFSPKFGELVAEE

Rat                           RSRGAGTAW--PSAIAGLVVFLTANVLRAFSPKFGELVAEE

Zebrafish                     ESKGANTTW--PSVIAGIVVALTAKVLRAFSPRFGKLVAEE

Slime mold                    -------DWYAPLIVYGF-FFLGYLINKLVMSPMVSINYLQ

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 – 745	ATP-binding cassette sub-family D member 1
Transmembrane	238 – 258	Helical
Domain	94 – 386	ABC transmembrane type-1

Literature citations

Identification of mutations in the ALD-gene of 20 families with adrenoleukodystrophy/adrenomyeloneuropathy.
Krasemann E.W.; Meier V.; Korenke G.C.; Hunneman D.H.; Hanefeld F.;
Hum. Genet. 97:194-197(1996)
Cited for: VARIANTS ALD PRO-107; ASP-174; MET-254; GLY-389; GLN-401; TRP-418; LYS-609; CYS-617 AND GLY-617;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P33897: Variant p.Thr254Met