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UniProtKB/Swiss-Prot Q13586: Variant p.Arg304Trp

Stromal interaction molecule 1
Gene: STIM1
Variant information

Variant position:  304
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 Tryptophan (W) at position 304 (R304W, p.Arg304Trp).
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 large size and aromatic (W)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -3
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:  Stormorken syndrome (STRMK) [MIM:185070]: A rare autosomal dominant disease characterized by mild bleeding tendency, thrombocytopathy, thrombocytopenia, mild anemia, asplenia, tubular aggregate myopathy, miosis, headache, and ichthyosis. {ECO:0000269|PubMed:24591628, ECO:0000269|PubMed:24619930, ECO:0000269|PubMed:25577287}. 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 STRMK; autosomal dominant; promotes constitutive activation of the Ca(2+) release-activated Ca(2+) (CRAC) channel.
Any additional useful information about the variant.

Other resources:  
Links to websites of interest for the variant.



Sequence information

Variant position:  304
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  685
The length of the canonical sequence.

Location on the sequence:   KKLRDEINLAKQEAQRLKEL  R EGTENERSRQKYAEEELEQV
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                         KKLRDEINLAKQEAQRLKELREGTENERSRQKYAEEELEQV

Mouse                         KKLRDEINLAKQEAQRLKELREGTENERSRQKYAEEELEQV

Rat                           KKLRDEINLAKQEAQRLKELREGTENERSRQKYAEEELEQV

Bovine                        KKLRDEINLAKQEAQRLKELREGTENERSRQKYAEEELEQV

Caenorhabditis elegans        KMLNDE--------RSKRSISDGVVN--------HTEMENL

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.

TypePositionsDescription
Chain 23 – 685 Stromal interaction molecule 1
Topological domain 235 – 685 Cytoplasmic
Coiled coil 248 – 442
Compositional bias 270 – 336 Glu-rich
Mutagenesis 324 – 324 V -> P. Reduces activation of CRAC channels.
Helix 276 – 334


Literature citations

A dominant STIM1 mutation causes Stormorken syndrome.
Misceo D.; Holmgren A.; Louch W.E.; Holme P.A.; Mizobuchi M.; Morales R.J.; De Paula A.M.; Stray-Pedersen A.; Lyle R.; Dalhus B.; Christensen G.; Stormorken H.; Tjoennfjord G.E.; Frengen E.;
Hum. Mutat. 35:556-564(2014)
Cited for: INVOLVEMENT IN STRMK; VARIANT STRMK TRP-304;

Activating mutations in STIM1 and ORAI1 cause overlapping syndromes of tubular myopathy and congenital miosis.
Nesin V.; Wiley G.; Kousi M.; Ong E.C.; Lehmann T.; Nicholl D.J.; Suri M.; Shahrizaila N.; Katsanis N.; Gaffney P.M.; Wierenga K.J.; Tsiokas L.;
Proc. Natl. Acad. Sci. U.S.A. 111:4197-4202(2014)
Cited for: FUNCTION; INVOLVEMENT IN STRMK; VARIANT STRMK TRP-304; CHARACTERIZATION OF VARIANT STRMK TRP-304; MUTAGENESIS OF ASP-76;

York platelet syndrome is a CRAC channelopathy due to gain-of-function mutations in STIM1.
Markello T.; Chen D.; Kwan J.Y.; Horkayne-Szakaly I.; Morrison A.; Simakova O.; Maric I.; Lozier J.; Cullinane A.R.; Kilo T.; Meister L.; Pakzad K.; Bone W.; Chainani S.; Lee E.; Links A.; Boerkoel C.; Fischer R.; Toro C.; White J.G.; Gahl W.A.; Gunay-Aygun M.;
Mol. Genet. Metab. 114:474-482(2015)
Cited for: VARIANTS STRMK PHE-115 AND TRP-304;

Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.