UniProtKB/Swiss-Prot P06280: Variant p.Asn34Ser

Alpha-galactosidase A
Gene: GLA
Chromosomal location: Xq22
Variant information

Variant position:  34
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 have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Asparagine (N) to Serine (S) at position 34 (N34S, p.Asn34Ser).
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 (N) to small size and polar (S)
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:  Fabry disease (FD) [MIM:301500]: Rare X-linked sphingolipidosis disease where glycolipid accumulates in many tissues. The disease consists of an inborn error of glycosphingolipid catabolism. FD patients show systemic accumulation of globotriaosylceramide (Gb3) and related glycosphingolipids in the plasma and cellular lysosomes throughout the body. Clinical recognition in males results from characteristic skin lesions (angiokeratomas) over the lower trunk. Patients may show ocular deposits, febrile episodes, and burning pain in the extremities. Death results from renal failure, cardiac or cerebral complications of hypertension or other vascular disease. Heterozygous females may exhibit the disorder in an attenuated form, they are more likely to show corneal opacities. {ECO:0000269|PubMed:10090526, ECO:0000269|PubMed:10208848, ECO:0000269|PubMed:10666480, ECO:0000269|PubMed:10916280, ECO:0000269|PubMed:11076046, ECO:0000269|PubMed:11295840, ECO:0000269|PubMed:11668641, ECO:0000269|PubMed:11889412, ECO:0000269|PubMed:12694230, ECO:0000269|PubMed:1315715, ECO:0000269|PubMed:15162124, ECO:0000269|PubMed:15712228, ECO:0000269|PubMed:16533976, ECO:0000269|PubMed:1846223, ECO:0000269|PubMed:19621417, ECO:0000269|PubMed:2152885, ECO:0000269|PubMed:2171331, ECO:0000269|PubMed:2539398, ECO:0000269|PubMed:27211852, ECO:0000269|PubMed:7504405, ECO:0000269|PubMed:7531540, ECO:0000269|PubMed:7575533, ECO:0000269|PubMed:7596372, ECO:0000269|PubMed:7599642, ECO:0000269|PubMed:7759078, ECO:0000269|PubMed:8069316, ECO:0000269|PubMed:8395937, ECO:0000269|PubMed:8738659, ECO:0000269|PubMed:8807334, ECO:0000269|PubMed:8834244, ECO:0000269|PubMed:8863162, ECO:0000269|PubMed:8875188, ECO:0000269|PubMed:8931708, ECO:0000269|PubMed:9100224, ECO:0000269|PubMed:9105656, ECO:0000269|PubMed:9452068, ECO:0000269|PubMed:9452090, ECO:0000269|PubMed:9452111, ECO:0000269|PubMed:9554750}. 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 FD.
Any additional useful information about the variant.

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



Sequence information

Variant position:  34
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  429
The length of the canonical sequence.

Location on the sequence:   LALRFLALVSWDIPGARALD  N GLARTPTMGWLHWERFMCNL
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.

TypePositionsDescription
Chain 32 – 429 Alpha-galactosidase A


Literature citations

Nature and frequency of mutations in the alpha-galactosidase A gene that cause Fabry disease.
Eng C.M.; Resnick-Silverman L.A.; Niehaus D.J.; Astrin K.H.; Desnick R.J.;
Am. J. Hum. Genet. 53:1186-1197(1993)
Cited for: VARIANTS FD SER-34; GLY-56; ARG-162; GLN-227; VAL-264; VAL-266; PHE-297; TYR-313; ALA-328 AND ARG-404 DEL;

Mutation analysis in patients with the typical form of Anderson-Fabry disease.
Davies J.P.; Winchester B.G.; Malcolm S.;
Hum. Mol. Genet. 2:1051-1053(1993)
Cited for: VARIANTS FD SER-34; SER-215; ALA-269; LYS-327 AND ARG-361;

Two novel mutations (L32P) and (G85N) among five different missense mutations in six Danish families with Fabry's disease.
Madsen K.M.; Hasholt L.; Soerensen S.A.; Lagerstroem Fermer M.; Dahl N.;
Hum. Mutat. 5:277-278(1995)
Cited for: VARIANTS FD PRO-32; SER-34; ASP-85; THR-156 AND GLN-301;

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.