IthaID: 3225
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Pathogenic / Likely Pathogenic |
|---|---|---|---|
| Common Name: | CD 78/85 (-20bp) | HGVS Name: | HBB:c.237_256delGGACAACCTCAAGGGCACCT |
| Hb Name: | N/A | Protein Info: | N/A |
Also known as:
Comments: The deletion spans from the third base of codon 78 to the first base of codon 85, resulting in a frameshift and a stop codon in position 83. The deleted sequence is flanked by CACCT sequences that could have been misaligned during replication and therefore originated this deletion.
We follow the HGVS sequence variant nomenclature and IUPAC standards.
Phenotype
| Hemoglobinopathy Group: | Thalassaemia |
|---|---|
| Hemoglobinopathy Subgroup: | β-thalassaemia |
| Allele Phenotype: | β0 |
| Associated Phenotypes: |
Haemolytic anaemia [HP:0001878] Ineffective erythropoiesis [HP:0010972] |
Location
| Chromosome: | 11 |
|---|---|
| Locus: | NG_000007.3 |
| Locus Location: | 70961 |
| Size: | 20 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: | Mexican |
| Molecular mechanism: | N/A |
| Inheritance: | Recessive |
| DNA Sequence Determined: | Yes |
In silico pathogenicity prediction
Note:
The impact thresholds provided in this section are based on the analyses performed in Tamana et.al. For any given tool, the impact thresholds defined for the set of variants with the same effect on function as the variant examined, are preferred over those defined for the full dataset.
Sequence Viewer
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Frequencies
Publications / Origin
- Rizo-de-la-Torre LC, Ibarra B, Sánchez-López JY, Magaña-Torres MT, Rentería-López VM, Perea-Díaz FJ, Three novel HBB mutations, c.-140C>G (-90 C>G), c.237_256delGGACAACCTCAAGGGCACCT (FS Cd 78/85 -20 bp), and c.315+2T>G (IVS2:2 T>G). Update of the mutational spectrum of β-Thalassemia in Mexican mestizo patients., Int J Lab Hematol , 2017 PubMed
Created on 2017-07-11 10:47:08,
Last reviewed on 2017-07-11 13:22:57 (Show full history)
| A/A | Date | Curator(s) | Comments |
|---|---|---|---|
| 1 | 2017-07-11 10:47:08 | The IthaGenes Curation Team | Created |
| 2 | 2017-07-11 13:22:57 | The IthaGenes Curation Team | Reviewed. Type of mutation info added. |
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IthaGenes was last updated on 2024-04-18 10:10:45