IthaID: 2967
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Variant of Uncertain Significance |
|---|---|---|---|
| Common Name: | -22 C>T | HGVS Name: | HBA2:c.-59C>T |
| Hb Name: | N/A | Protein Info: | α2 nt -22 C>T |
| Also known as: |
We follow the
HGVS sequence variant nomenclature
and
IUPAC standards.
Context nucleotide sequence:
GCCCCCGCGCCCCAAGCATAAAC [C>T] CTGGCGCGCTCGCGGGCCGGCA (Strand: +)
Comments: Found as a heterozygote with normal haematology and biochemical parameters. Point-mutation located at the core promoter region affecting the last nucleotide of the TATA box consensus sequence. Functional studies showed that it can cause up to 54% reduction in the transcriptional activity.
External Links
Phenotype
| Hemoglobinopathy Group: | Thalassaemia |
|---|---|
| Hemoglobinopathy Subgroup: | α-thalassaemia |
| Allele Phenotype: | N/A |
| Associated Phenotypes: | N/A |
Location
| Chromosome: | 16 |
|---|---|
| Locus: | NG_000006.1 |
| Locus Location: | 33717 |
| Size: | 1 bp |
| Located at: | α2 |
| Specific Location: | Promoter |
Other details
| Type of Mutation: | Point-Mutation(Substitution) |
|---|---|
| Effect on Gene/Protein Function: | Promoter (Transcription) |
| Ethnic Origin: | N/A |
| Molecular mechanism: | N/A |
| Inheritance: | Recessive |
| DNA Sequence Determined: | Yes |
In silico pathogenicity prediction
Sequence Viewer
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Publications / Origin
- Qadah T, Finlayson J, Dennis M, Ghassemifar R, Molecular and cellular analysis of three novel alpha2-globin gene promoter mutations [HBA2: c.-59C>T], [HBA2: c.-81C>A] and [HBA2: c.-91G>A] reveal varying patterns of transcriptional and translational activities., Pathology , 46(1), 46-52, 2014 PubMed
Created on 2016-08-23 15:22:13,
Last reviewed on 2017-07-31 12:08:30 (Show full history)
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