UniProtKB/SwissProt variant VAR

Variant information

Variant position:

52

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 Threonine (T) to Alanine (A) at position 52 (T52A, p.Thr52Ala).

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 polar (T) to small size and hydrophobic (A)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

0

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

Involvement in disease:

Telangiectasia, hereditary hemorrhagic, 2 (HHT2) [MIM:600376]: A multisystemic vascular dysplasia leading to dilation of permanent blood vessels and arteriovenous malformations of skin, mucosa, and viscera. The disease is characterized by recurrent epistaxis and gastro-intestinal hemorrhage. Visceral involvement includes arteriovenous malformations of the lung, liver, and brain. {ECO:0000269|PubMed:10694922, ECO:0000269|PubMed:10767348, ECO:0000269|PubMed:11170071, ECO:0000269|PubMed:11484689, ECO:0000269|PubMed:14684682, ECO:0000269|PubMed:15024723, ECO:0000269|PubMed:15712270, ECO:0000269|PubMed:16525724, ECO:0000269|PubMed:16752392, ECO:0000269|PubMed:20414677, ECO:0000269|PubMed:26176610, ECO:0000269|PubMed:8640225, ECO:0000269|PubMed:9245985}. Note=The disease is caused by mutations affecting the gene represented in this entry.

The name and a short description of the disease associated with the variant. For more information about the disease, the user can refer to OMIM, following the link provided after the disease acronym.

Variant description:

In HHT2.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs1131691346 [ dbSNP | Ensembl ]

Sequence information

Variant position:

52

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

Protein sequence length:

503

The length of the canonical sequence.

Location on the sequence:

VTCTCESPHCKGPTCRGAWC T VVLVREEGRHPQEHRGCGNL

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                         VTCTCESPHCKGPTCRGAWCTVVLVREEGRHPQEHRGCGNL

Mouse                         VNCTCESPHCKRPFCQGSWCTVVLVREQGRHPQVYRGCGSL

Rat                           VNCTCENPHCKRPICQGAWCTVVLVREQGRHPQVYRGCGSL

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	22 – 503	Serine/threonine-protein kinase receptor R3
Topological domain	22 – 118	Extracellular
Disulfide bond	46 – 69
Beta strand	42 – 56

Literature citations

Novel mutations in ENG and ACVRL1 identified in a series of 200 individuals undergoing clinical genetic testing for hereditary hemorrhagic telangiectasia (HHT): correlation of genotype with phenotype.
Bossler A.D.; Richards J.; George C.; Godmilow L.; Ganguly A.;
Hum. Mutat. 27:667-675(2006)
Cited for: VARIANT SER-30; VARIANTS HHT2 TYR-34; ALA-52; ILE-197; ASP-219; LYS-237; LEU-260; PRO-289; ARG-344; CYS-426 AND ARG-433;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P37023: Variant p.Thr52Ala