UniProtKB/SwissProt variant VAR

Variant information

Variant position:

695

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

Type of variant:

Polymorphism

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 Isoleucine (I) to Methionine (M) at position 695 (I695M, p.Ile695Met).

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

Other resources:

Links to websites of interest for the variant.

Variant rs199588089 [ dbSNP | Ensembl ]

Sequence information

Variant position:

695

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

Protein sequence length:

1988

The length of the canonical sequence.

Location on the sequence:

LSEDMLNDPNLRQRAMSRAS I LTNTVEELEESRQKCPPWWY

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                         LSEDMLNDPNLRQRAMSRASILTNTVEELEESRQKCPPWWY

Mouse                         LSEDMLNDPHLRQRAMSRASILTNTVEELEESRQKCPPWWY

Rat                           LSEDMLNDPHLRQRAMSRASILTNTVEELEESRQKCPPWWY

Rabbit                        LSEDMLNDPHLRQRAMSRASILTNTVEELEESRQKCPSWWY

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 – 1988	Sodium channel protein type 9 subunit alpha
Topological domain	400 – 744	Cytoplasmic

Literature citations

A role of SCN9A in human epilepsies, as a cause of febrile seizures and as a potential modifier of Dravet syndrome.
Singh N.A.; Pappas C.; Dahle E.J.; Claes L.R.; Pruess T.H.; De Jonghe P.; Thompson J.; Dixon M.; Gurnett C.; Peiffer A.; White H.S.; Filloux F.; Leppert M.F.;
PLoS Genet. 5:E1000649-E1000649(2009)
Cited for: VARIANTS GEFS+7 TYR-641 AND ARG-666; VARIANTS FEB3B VAL-62 AND GLN-149; VARIANTS MET-228; ASN-490; LYS-519; MET-695; TYR-710; VAL-750; PHE-1134; GLN-1171 AND VAL-1278;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q15858: Variant p.Ile695Met