UniProtKB/SwissProt variant VAR

Variant information

Variant position:

149

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 Methionine (M) to Isoleucine (I) at position 149 (M149I, p.Met149Ile).

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:

Similar physico-chemical property. Both residues are medium size and hydrophobic.

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 ACADMD.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs121434277 [ dbSNP | Ensembl ]

Sequence information

Variant position:

149

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:

GQMPIIIAGNDQQKKKYLGR M TEEPLMCAYCVTEPGAGSDV

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                         GQMPIIIAGNDQQKKKYLGRMTEEPLMCAYCVTEPGAGSDV

Chimpanzee                    GQMPIIIAGNDQQKKKYLGRMTEEPLMCAYCVTEPGAGSDV

Mouse                         GQMPVILAGNDQQKKKYLGRMTEQPMMCAYCVTEPSAGSDV

Rat                           GQMPVIIAGNDQQKKKYLGRMTEQPMMCAYCVTEPSAGSDV

Pig                           GQVPLIIGGNYQQQKKYLGRMTEEPLMCAYCVTEPGAGSDV

Bovine                        GQMPVIIAGNDQQQKKYLGRMTEEPLMCAYCVTEPVAGSDV

Caenorhabditis elegans        AIAPVYISGNEEQKKKYLGALAAEPIIASYCVTEPGAGSDV

Drosophila                    GQTPVILSGNKEQKKKYLGRLLEEPLVAAYCVTEPGAGSDV

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
Binding site	167 – 167	Substrate; via carbonyl oxygen
Helix	147 – 151

Literature citations

Molecular survey of a prevalent mutation, 985A-to-G transition, and identification of five infrequent mutations in the medium-chain Acyl-CoA dehydrogenase (MCAD) gene in 55 patients with MCAD deficiency.
Yokota I.; Coates P.M.; Hale D.E.; Rinaldo P.; Tanaka K.;
Am. J. Hum. Genet. 49:1280-1291(1991)
Cited for: VARIANTS ACADMD ILE-149; ARG-244; ARG-267 AND THR-375;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P11310: Variant p.Met149Ile