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UniProtKB/Swiss-Prot Q06187: Variant p.Gly594Arg

Tyrosine-protein kinase BTK
Gene: BTK
Variant information

Variant position:  594
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 Glycine (G) to Arginine (R) at position 594 (G594R, p.Gly594Arg).
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 glycine (G) to large size and basic (R)
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

Involvement in disease:  X-linked agammaglobulinemia (XLA) [MIM:300755]: Humoral immunodeficiency disease which results in developmental defects in the maturation pathway of B-cells. Affected boys have normal levels of pre-B-cells in their bone marrow but virtually no circulating mature B-lymphocytes. This results in a lack of immunoglobulins of all classes and leads to recurrent bacterial infections like otitis, conjunctivitis, dermatitis, sinusitis in the first few years of life, or even some patients present overwhelming sepsis or meningitis, resulting in death in a few hours. Treatment in most cases is by infusion of intravenous immunoglobulin. {ECO:0000269|PubMed:10220140, ECO:0000269|PubMed:10612838, ECO:0000269|PubMed:10678660, ECO:0000269|PubMed:7627183, ECO:0000269|PubMed:7633420, ECO:0000269|PubMed:7633429, ECO:0000269|PubMed:7711734, ECO:0000269|PubMed:7809124, ECO:0000269|PubMed:7849006, ECO:0000269|PubMed:7849697, ECO:0000269|PubMed:7849721, ECO:0000269|PubMed:7880320, ECO:0000269|PubMed:7897635, ECO:0000269|PubMed:8013627, ECO:0000269|PubMed:8162018, ECO:0000269|PubMed:8162056, ECO:0000269|PubMed:8594569, ECO:0000269|PubMed:8634718, ECO:0000269|PubMed:8695804, ECO:0000269|PubMed:8723128, ECO:0000269|PubMed:8834236, ECO:0000269|PubMed:9016530, ECO:0000269|PubMed:9260159, ECO:0000269|PubMed:9280283, ECO:0000269|PubMed:9445504, ECO:0000269|PubMed:9545398}. 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 XLA.
Any additional useful information about the variant.

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



Sequence information

Variant position:  594
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  659
The length of the canonical sequence.

Location on the sequence:   FSSKSDIWAFGVLMWEIYSL  G KMPYERFTNSETAEHIAQGL
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                         FSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGL

Mouse                         FSSKSDIWAFGVLMWEIYSLGKMPYERFTNSETAEHIAQGL

Chicken                       FSSKSDVWSFGVLMWEVYSLGKMPYERFNNSETTEHVIQGL

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 2 – 659 Tyrosine-protein kinase BTK
Domain 402 – 655 Protein kinase
Modified residue 604 – 604 Phosphoserine
Turn 592 – 594


Literature citations

DNA-based mutation analysis of Bruton's tyrosine kinase gene in patients with X-linked agammaglobulinaemia.
Vorechovsky I.; Vihinen M.; de Saint Basile G.; Honsova S.; Hammarstroem L.; Mueller S.; Nilsson L.; Fischer A.; Smith C.I.E.;
Hum. Mol. Genet. 4:51-58(1995)
Cited for: VARIANTS XLA SER-25; TRP-288; MET-370; VAL-509; PRO-525; LYS-526; TRP-562; VAL-582 AND ARG-594;

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.