UniProtKB/SwissProt variant VAR

Variant information

Variant position:

177

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 Tryptophan (W) to Arginine (R) at position 177 (W177R, p.Trp177Arg).

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

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

Involvement in disease:

Acyl-CoA dehydrogenase short-chain deficiency (ACADSD) [MIM:201470]: An inborn error of mitochondrial fatty acid beta-oxidation resulting in acute acidosis and muscle weakness in infants, and a form of lipid-storage myopathy in adults. {ECO:0000269|PubMed:11134486, ECO:0000269|PubMed:1692038, ECO:0000269|PubMed:9499414}. 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 ACADSD.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs57443665 [ dbSNP | Ensembl ]

Sequence information

Variant position:

177

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

Protein sequence length:

412

The length of the canonical sequence.

Location on the sequence:

PGNGSDAGAASTTARAEGDS W VLNGTKAWITNAWEASAAVV

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                         PGNGSDAGAASTTARAEGDSWVLNGTKAWITNAWEASAAVV

Mouse                         PGNGSDAGAASTTAREEGDSWVLNGTKAWITNSWEASATVV

Rat                           PGNGSDAGAASTTAREEGDSWVLNGTKAWITNSWEASATVV

Pig                           PGNGSDAGAAATTAQADHDSWVLSGTKAWITNAWEASAAVV

Bovine                        PGNGSDAGAAATTARADGDSWVLSGTKAWITNAWEASAVVV

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	25 – 412	Short-chain specific acyl-CoA dehydrogenase, mitochondrial
Binding site	161 – 161	Substrate; via carbonyl oxygen
Beta strand	176 – 187

Literature citations

Identification of four new mutations in the short-chain acyl-CoA dehydrogenase (SCAD) gene in two patients: one of the variant alleles, 511C-->T, is present at an unexpectedly high frequency in the general population, as was the case for 625G-->A, together conferring susceptibility to ethylmalonic aciduria.
Gregersen N.; Winter V.S.; Corydon M.J.; Corydon T.J.; Rinaldo P.; Ribes A.; Martinez G.; Bennett M.J.; Vianey-Saban C.; Bhala A.; Hale D.E.; Lehnert W.; Kmoch S.; Roig M.; Riudor E.; Eiberg H.; Andresen B.S.; Bross P.; Bolund L.A.; Koelvraa S.;
Hum. Mol. Genet. 7:619-627(1998)
Cited for: VARIANTS ACADSD CYS-92; ARG-177 AND CYS-383; VARIANTS TRP-171 AND SER-209;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P16219: Variant p.Trp177Arg