UniProtKB/SwissProt variant VAR

Variant information

Variant position:

228

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

Type of variant:

LB/B

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 Isoleucine (I) to Leucine (L) at position 228 (I228L, p.Ile228Leu).

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:

2

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 rs45566933 [ dbSNP | Ensembl ]

Sequence information

Variant position:

228

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

Protein sequence length:

594

The length of the canonical sequence.

Location on the sequence:

TANTNMFTYEIAPVFVLMEQ I TLKKMREIVGWSSKDGDGIF

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                         TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSSKDGDGIF

                              TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSSKDGDGIF

Chimpanzee                    TANTNMFTYEIAPVFVLMEQITLKKMREIIGWSSKDGDGIF

Mouse                         TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSNKDGDGIF

Rat                           TANTNMFTYEIAPVFVLMEQITLKKMREIIGWSNKDGDGIF

Pig                           TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSNKDGDGIF

Bovine                        TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSSKDGDGIF

Cat                           TANTNMFTYEIAPVFVLMEQITLKKMREIVGWSSKDGDGIF

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 – 594	Glutamate decarboxylase 1
Alternative sequence	225 – 594	Missing. In isoform 3.
Helix	220 – 237

Literature citations

Submission
NIEHS SNPs program;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS LEU-228 AND GLN-532;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot Q99259: Variant p.Ile228Leu