IthaID: 414
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Pathogenic / Likely Pathogenic |
|---|---|---|---|
| Common Name: | CD 131 TCT>CCT [Ser>Pro] | HGVS Name: | HBA2:c.394T>C |
| Hb Name: | Hb Questembert | Protein Info: | α2 131(H14) Ser>Pro |
Context nucleotide sequence:
CGCCTCCCTGGACAAGTTCCTGGCT [T>C] CTGTGAGCACCGTGCTGACCTCCAA (Strand: +)
Protein sequence:
MVLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNALSALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLAPVSTVLTSKYR
Also known as:
We follow the HGVS sequence variant nomenclature and IUPAC standards.
Phenotype
| Hemoglobinopathy Group: | Thalassaemia and Structural Haemoglobinopathy |
|---|---|
| Hemoglobinopathy Subgroup: | α-thalassaemia, α-chain variant |
| Allele Phenotype: | α⁺ |
| Stability: | N/A |
| Oxygen Affinity: | N/A |
| Associated Phenotypes: | Haemolytic anaemia [HP:0001878] |
Location
| Chromosome: | 16 |
|---|---|
| Locus: | NG_000006.1 |
| Locus Location: | 34428 |
| Size: | 1 bp |
| Located at: | α2 |
| Specific Location: | Exon 3 |
Other details
| Type of Mutation: | Point-Mutation(Substitution) |
|---|---|
| Effect on Gene/Protein Function: | Missense codons (Protein Structure) |
| Ethnic Origin: | Yugoslavian, French |
| Molecular mechanism: | Altered secondary structure |
| 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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Publications / Origin
- Rochette J, Barnetson R, Thein SL, Varet B, Valensi F, Hb Questembert is due to a base substitution (T-->C) in codon 131 of the alpha 2-globin gene and has an alpha-thalassemia biosynthetic ratio., American journal of hematology, 48(4), 289-90, 1995 PubMed
Created on 2010-06-16 16:13:15,
Last reviewed on 2021-03-23 14:41:04 (Show full history)
| A/A | Date | Curator(s) | Comments |
|---|---|---|---|
| 1 | 2010-06-16 16:13:15 | The IthaGenes Curation Team | Created |
| 2 | 2013-10-15 17:00:14 | The IthaGenes Curation Team | Reviewed. |
| 3 | 2021-03-23 14:41:04 | The IthaGenes Curation Team | Reviewed. Reference added. |
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IthaGenes was last updated on 2024-11-20 13:24:07