UniProtKB/SwissProt variant VAR

Variant information

Variant position:

92

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

Type of variant:

LP/P [Disclaimer]

The variants are classified into three categories: LP/P, LB/B and US.

LP/P: likely pathogenic or pathogenic.
LB/B: likely benign or benign.
US: uncertain significance

Residue change:

From Aspartate (D) to Glycine (G) at position 92 (D92G, p.Asp92Gly).

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 acidic (D) to glycine (G)

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 MC2DN3; results in highly reduced protein expression; results in impaired cellular respiration.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs786205436 [ dbSNP | Ensembl ]

Sequence information

Variant position:

92

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

Protein sequence length:

159

The length of the canonical sequence.

Location on the sequence:

VSVLLLGLLPAAYLNPCSAM D YSLAAALTLHGHWGLGQVVT

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                         VSVLLLG--LLPAAYLNPCSA---MDYSLAAALTLHGHWGLGQVVT

Mouse                         VSVLLLG--LIPAGYLNPCSV---VDYSLAAALTLHSHWGL

Rat                           VSVLLLG--LIPAGYLNPCSV---VDYSLAAALTLHSHWGI

Pig                           VSVLLLG--LLPAAYLNPCSA---MDYSLAAALTLHGHWGI

Bovine                        VSVLLLG--LIPAAYLNPCSA---MDYSLAATLTLHSHWGI

Sheep                         VSVLLLG--LIPAAYLNPCSA---MDYSLAATLTLHSHWGI

Chicken                       VSALLLG--LLPAAYLYPGPA---VDYSLAAALTLHGHWGL

Xenopus tropicalis            LSVALLG--LLPAAYLYPGAA---MDYSLAAALTLHGHWGL

Caenorhabditis elegans        WAVGMLP--ILPASYFIHGPV---MDAVLTVALTLHIHWGI

Drosophila                    VSAGLLA--VIPAAFIAPSQV---LDALMAISVVIHTHWGV

Baker's yeast                 FALSVVP--LATTAMLTTGPLSTAADSFFSVMLLGYCYMEF

Fission yeast                 IAIAMVPQVMIPLFTGTSHPL---MDAALACTLITHAHLGF

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	57 – 159	Succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial
Transmembrane	91 – 111	Helical
Metal binding	102 – 102	Iron (heme axial ligand); shared with SDHC
Alternative sequence	56 – 158	HSGSKAASLHWTSERVVSVLLLGLLPAAYLNPCSAMDYSLAAALTLHGHWGLGQVVTDYVHGDALQKAAKAGLLALSALTFAGLCYFNYHDVGICKAVAMLWK -> HWALDKLLLTMFMGMPCRKLPRQGFWHFQ. In isoform 3.

Literature citations

A recessive homozygous p.Asp92Gly SDHD mutation causes prenatal cardiomyopathy and a severe mitochondrial complex II deficiency.
Alston C.L.; Ceccatelli Berti C.; Blakely E.L.; Olahova M.; He L.; McMahon C.J.; Olpin S.E.; Hargreaves I.P.; Nolli C.; McFarland R.; Goffrini P.; O'Sullivan M.J.; Taylor R.W.;
Hum. Genet. 134:869-879(2015)
Cited for: VARIANT MC2DN3 GLY-92; INVOLVEMENT IN MC2DN3; CHARACTERIZATION OF VARIANT MC2DN3 GLY-92;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot O14521: Variant p.Asp92Gly