UniProtKB/SwissProt variant VAR

Variant information

Variant position:

336

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 Serine (S) to Arginine (R) at position 336 (S336R, p.Ser336Arg).

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 small size and polar (S) to large size and basic (R)

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:

Acyl-CoA dehydrogenase medium-chain deficiency (ACADMD) [MIM:201450]: An inborn error of mitochondrial fatty acid beta-oxidation which causes fasting hypoglycemia, hepatic dysfunction and encephalopathy, often resulting in death in infancy. {ECO:0000269|PubMed:10767181, ECO:0000269|PubMed:11349232, ECO:0000269|PubMed:11409868, ECO:0000269|PubMed:11486912, ECO:0000269|PubMed:1363805, ECO:0000269|PubMed:1671131, ECO:0000269|PubMed:1684086, ECO:0000269|PubMed:1902818, ECO:0000269|PubMed:2251268, ECO:0000269|PubMed:2393404, ECO:0000269|PubMed:2394825, ECO:0000269|PubMed:7603790, ECO:0000269|PubMed:7929823, ECO:0000269|PubMed:8198141, ECO:0000269|PubMed:9158144, ECO:0000269|PubMed:9882619}. 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 ACADMD.

Any additional useful information about the variant.

Sequence information

Variant position:

336

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

Protein sequence length:

421

The length of the canonical sequence.

Location on the sequence:

HQAISFMLAEMAMKVELARM S YQRAAWEVDSGRRNTYYASI

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                         HQAISFMLAEMAMKVELARMSYQRAAWEVDSGRRNTYYASI

Chimpanzee                    HQAISFMLAEMAMKVELARMSYQRAAWEVDSGRRNTYYASI

Mouse                         HQGVSFLLAEMAMKVELARLSYQRAAWEVDSGRRNTYYASI

Rat                           HQGVSFLLAEMAMKVELARLSYQRAAWEVDSGRRNTYFASI

Pig                           HQGISFLLADMAMKVELARLSYQRAAWEIDSGRRNTYYASI

Bovine                        HQGISFLLAEMAMKVELARLSYQRAAWEVDSGRRNTYYASI

Caenorhabditis elegans        HQAVQFMLADMAVNLELARLITYKSANDVDNKVRSSYNASI

Drosophila                    HQAVQFMLADMAIGVETSRLAWRLSAWEIDQGRRNSYYASI

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	26 – 421	Medium-chain specific acyl-CoA dehydrogenase, mitochondrial
Modified residue	351 – 351	Phosphothreonine
Helix	317 – 345

Literature citations

Disease-causing mutations in exon 11 of the medium-chain acyl-CoA dehydrogenase gene.
Andresen B.S.; Jensen T.G.; Bross P.; Knudsen I.; Winter V.; Koelvraa S.; Bolund L.; Ding J.-H.; Chen Y.-T.; van Hove J.L.K.; Curtis D.; Yokota I.; Tanaka K.; Kim J.-J.P.; Gregersen N.;
Am. J. Hum. Genet. 54:975-988(1994)
Cited for: VARIANTS ACADMD THR-326 AND ARG-336;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P11310: Variant p.Ser336Arg