IthaID: 2965
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Pathogenic / Likely Pathogenic |
|---|---|---|---|
| Common Name: | CD 89-90 (-TGAG) | HGVS Name: | HBB:c.270_273delTGAG |
| Hb Name: | Hb Wilde | Protein Info: | β 89 - 90 (-TGAG); modified C-terminal sequence |
Also known as:
Comments: Appears as de novo mutation, in heterozygote state, with severe thalassaemia-like features. Patient presented extramedullary haematopoiesis at the age of 5 and thus requires regular blood transfusions. Predicted to cause frameshift, resulting in an elongated β-globin and a modified C-terminal sequence. Structural characterization suggested alteration of the tertiary structure, as well as of the majority of the positions involved in αβ dimer formation.
We follow the HGVS sequence variant nomenclature and IUPAC standards.
Phenotype
| Hemoglobinopathy Group: | Structural Haemoglobinopathy |
|---|---|
| Hemoglobinopathy Subgroup: | β-chain variant |
| Allele Phenotype: | N/A |
| Stability: | Hyperunstable |
| Oxygen Affinity: | N/A |
| Associated Phenotypes: | N/A |
Location
| Chromosome: | 11 |
|---|---|
| Locus: | NG_000007.3 |
| Locus Location: | 70994 |
| Size: | 4 bp |
| Located at: | β |
| Specific Location: | Exon 2 |
Other details
| Type of Mutation: | Point-Mutation(Deletion) |
|---|---|
| Effect on Gene/Protein Function: | Frameshift (Translation) |
| Ethnic Origin: | Argentinean |
| Molecular mechanism: | N/A |
| Inheritance: | Dominant |
| DNA Sequence Determined: | Yes |
In silico pathogenicity prediction
Publications / Origin
- Scheps KG, Hasenahuer MA, Parisi G, Fornasari MS, Pennesi SP, Erramouspe B, Basack FN, Veber ES, Aversa L, Elena G, Varela V, Hb Wilde and Hb Patagonia: two novel elongated beta-globin variants causing dominant beta-thalassemia., Eur. J. Haematol. , 94(6), 498-503, 2015
Created on 2016-08-23 14:44:01,
Last reviewed on (Show full history)
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