UniProtKB/SwissProt variant VAR

Variant information

Variant position:

1211

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 Glutamate (E) to Lysine (K) at position 1211 (E1211K, p.Glu1211Lys).

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 (E) to large size and basic (K)

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 EIEE11; markedly altered channel voltage-dependence; responds to modified Atkins diet.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs387906684 [ dbSNP | Ensembl ]

Sequence information

Variant position:

1211

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

Protein sequence length:

2005

The length of the canonical sequence.

Location on the sequence:

GKLWWNLRKTCYKIVEHNWF E TFIVFMILLSSGALAFEDIY

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                         GKLWWNLRKTCYKIVEHNWFETFIVFMILLSSGALAFEDIY

Mouse                         GKLWWNLRKTCYKIVEHNWFETFIVFMILLSSGALAFEDIY

Rat                           GKLWWNLRKTCYKIVEHNWFETFIVFMILLSSGALAFEDIY

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 – 2005	Sodium channel protein type 2 subunit alpha
Transmembrane	1210 – 1227	Helical; Name=S1 of repeat III
Repeat	1190 – 1504	III
Helix	1208 – 1223

Literature citations

De novo mutations of voltage-gated sodium channel alphaII gene SCN2A in intractable epilepsies.
Ogiwara I.; Ito K.; Sawaishi Y.; Osaka H.; Mazaki E.; Inoue I.; Montal M.; Hashikawa T.; Shike T.; Fujiwara T.; Inoue Y.; Kaneda M.; Yamakawa K.;
Neurology 73:1046-1053(2009)
Cited for: VARIANTS EIEE11 LYS-1211 AND MET-1473; VARIANTS LYS-19; VAL-328; GLN-524 AND VAL-575; CHARACTERIZATION OF VARIANTS EIEE11 LYS-1211 AND MET-1473; CHARACTERIZATION OF VARIANT VAL-575;

SCN2A mutation in a Chinese boy with infantile spasm - response to Modified Atkins Diet.
Wong V.C.; Fung C.W.; Kwong A.K.;
Brain Dev. 37:729-732(2015)
Cited for: VARIANT EIEE11 LYS-1211;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q99250: Variant p.Glu1211Lys