UniProtKB/SwissProt variant VAR

Variant information

Variant position:

366

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 Glutamate (E) to Lysine (K) at position 366 (E366K, p.Glu366Lys).

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

Polymorphism:

The sequence shown is that of the M1V allele which is the most common form of PI (44 to 49%). Other frequent alleles are: M1A 20 to 23%; M2 10 to 11%; M3 14 to 19%.

Additional information on the polymorphism described.

Variant description:

In Z/Z-Augsburg/Z-Tun; associated with A-237 in Z.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs28929474 [ dbSNP | Ensembl ]

Sequence information

Variant position:

366

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

Protein sequence length:

418

The length of the canonical sequence.

Location on the sequence:

TEEAPLKLSKAVHKAVLTID E KGTEAAGAMFLEAIPMSIPP

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.

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	25 – 418	Alpha-1-antitrypsin
Modified residue	383 – 383	Phosphoserine
Alternative sequence	307 – 418	Missing. In isoform 3.
Alternative sequence	356 – 418	AVHKAVLTIDEKGTEAAGAMFLEAIPMSIPPEVKFNKPFVFLMIEQNTKSPLFMGKVVNPTQK -> VRSP. In isoform 2.
Mutagenesis	382 – 382	M -> V. Oxidation-resistant inhibitor of therapeutic importance.
Beta strand	366 – 381

Literature citations

Characterization of a new variant of alpha1 antitrypsin M Lille (p.Gly148Trp).
Balduyck M.; Porchet N.; Aubert J.-P.; Zerimech F.; Douchain F.; Verchain S.;
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS TRP-172; ALA-237 AND LYS-366;

Sequence data of the rare deficient alpha 1-antitrypsin variant PI Zaugsburg.
Faber J.-P.; Weidinger S.; Olek K.;
Am. J. Hum. Genet. 46:1158-1162(1990)
Cited for: VARIANT Z-AUGSBURG LYS-366;

SERPINA2 is a novel gene with a divergent function from SERPINA1.
Marques P.I.; Ferreira Z.; Martins M.; Figueiredo J.; Silva D.I.; Castro P.; Morales-Hojas R.; Simoes-Correia J.; Seixas S.;
PLoS ONE 8:E66889-E66889(2013)
Cited for: VARIANTS Z ALA-237 AND LYS-366; VARIANT S VAL-288; SUBCELLULAR LOCATION; TISSUE SPECIFICITY; GLYCOSYLATION; INTERACTION WITH CANX AND PDIA3;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P01009: Variant p.Glu366Lys