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UniProtKB/Swiss-Prot P11413: Variant p.Phe216Leu

Glucose-6-phosphate 1-dehydrogenase
Gene: G6PD
Variant information

Variant position:  216
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 Phenylalanine (F) to Leucine (L) at position 216 (F216L, p.Phe216Leu).
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 aromatic (F) to medium size and hydrophobic (L)
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:  Anemia, non-spherocytic hemolytic, due to G6PD deficiency (NSHA) [MIM:300908]: A disease characterized by G6PD deficiency, acute hemolytic anemia, fatigue, back pain, and jaundice. In most patients, the disease is triggered by an exogenous agent, such as some drugs, food, or infection. Increased unconjugated bilirubin, lactate dehydrogenase, and reticulocytosis are markers of the disorder. Although G6PD deficiency can be life-threatening, most patients are asymptomatic throughout their life. {ECO:0000269|PubMed:12524354, ECO:0000269|PubMed:1303180, ECO:0000269|PubMed:1303182, ECO:0000269|PubMed:1536798, ECO:0000269|PubMed:1611091, ECO:0000269|PubMed:1889820, ECO:0000269|PubMed:1945893, ECO:0000269|PubMed:20007901, ECO:0000269|PubMed:26479991, ECO:0000269|PubMed:2836867, ECO:0000269|PubMed:2912069, ECO:0000269|PubMed:30988594, ECO:0000269|PubMed:7858267, ECO:0000269|PubMed:7959695, ECO:0000269|PubMed:8193373, ECO:0000269|PubMed:8490627, ECO:0000269|PubMed:8533762, ECO:0000269|PubMed:8733135, ECO:0000269|PubMed:9452072}. Note=The disease is caused by mutations affecting the gene represented in this entry. Deficiency of G6PD is associated with hemolytic anemia in two different situations. First, in areas in which malaria has been endemic, G6PD-deficiency alleles have reached high frequencies (1% to 50%) and deficient individuals, though essentially asymptomatic in the steady state, have a high risk of acute hemolytic attacks. Secondly, sporadic cases of G6PD deficiency occur at a very low frequencies, and they usually present a more severe phenotype. Several types of NSHA are recognized. Class-I variants are associated with severe NSHA; class-II have an activity <10% of normal; class-III have an activity of 10% to 60% of normal; class-IV have near normal activity.
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 NSHA; Harilaou; class I.
Any additional useful information about the variant.

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



Sequence information

Variant position:  216
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  515
The length of the canonical sequence.

Location on the sequence:   IYRIDHYLGKEMVQNLMVLR  F ANRIFGPIWNRDNIACVILT
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 2 – 515 Glucose-6-phosphate 1-dehydrogenase
Helix 206 – 216


Literature citations

No reference for the current variant in UniProtKB/Swiss-Prot.

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.