UniProtKB/SwissProt variant VAR

Variant information

Variant position:

67

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 Arginine (R) to Glutamine (Q) at position 67 (R67Q, p.Arg67Gln).

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 large size and basic (R) to medium size and polar (Q)

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

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; retained in the endoplasmic reticulum.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs863223414 [ dbSNP | Ensembl ]

Sequence information

Variant position:

67

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:

RGAWCTVVLVREEGRHPQEH R GCGNLHRELCRGRPTEFVNH

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                         RGAWCTVVLVREEGRHPQEHRGCGNLHRELCRGRPTEFVNH

Mouse                         QGSWCTVVLVREQGRHPQVYRGCGSLNQELCLGRPTEFLNH

Rat                           QGAWCTVVLVREQGRHPQVYRGCGSLNQELCLGRPTEFVNH

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	64 – 68

Literature citations

The activin receptor-like kinase 1 gene: genomic structure and mutations in hereditary hemorrhagic telangiectasia type 2.
Berg J.N.; Gallione C.J.; Stenzel T.T.; Johnson D.W.; Allen W.P.; Schwartz C.E.; Jackson C.E.; Porteous M.E.M.; Marchuk D.A.;
Am. J. Hum. Genet. 61:60-67(1997)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS HHT2 CYS-50; GLN-67; ILE-333; TRP-374 AND THR-424;

Molecular and functional analysis identifies ALK-1 as the predominant cause of pulmonary hypertension related to hereditary haemorrhagic telangiectasia.
Harrison R.E.; Flanagan J.A.; Sankelo M.; Abdalla S.A.; Rowell J.; Machado R.D.; Elliott C.G.; Robbins I.M.; Olschewski H.; McLaughlin V.; Gruenig E.; Kermeen F.; Halme M.; Raeisaenen-Sokolowski A.; Laitinen T.; Morrell N.W.; Trembath R.C.;
J. Med. Genet. 40:865-871(2003)
Cited for: VARIANTS HHT2 ALA-179; ASP-211; TYR-344; TRP-374; GLN-374; SER-399; GLN-411 AND THR-487; CHARACTERIZATION OF VARIANTS HHT2 CYS-50; GLN-67; TRP-77; ALA-179; ASP-211; SER-232 DEL; ASP-254 DEL; ILE-333; TYR-344; GLN-374; LEU-378; GLN-411 AND THR-487;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P37023: Variant p.Arg67Gln