IthaID: 2957
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Pathogenic / Likely Pathogenic |
|---|---|---|---|
| Common Name: | IVS I-117 G>A | HGVS Name: | HBA2:c.96-1G>A |
| Hb Name: | N/A | Protein Info: | N/A |
| Also known as: |
We follow the
HGVS sequence variant nomenclature
and
IUPAC standards.
Context nucleotide sequence:
CACCCCTCACTCTGCTTCTCCCCGCA [G/A] GATGTTCCTGTCCTTCCCCACCAC (Strand: +)
Comments: This G>A replacement occurs in the acceptor splicing site which interferes with the correct RNA splicing. A gene conversion event probably explains the fact that exactly the same mutation is present on the HBA1 and HBA2 genes both. Family studies would allow to confirm it and to know if these two mutations are in cis or in trans.
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: | 33987 |
| Size: | 1 bp |
| Located at: | α2 |
| Specific Location: | Intron 1 |
Other details
| Type of Mutation: | Point-Mutation(Substitution) |
|---|---|
| Effect on Gene/Protein Function: | Consensus splice site (mRNA Processing) |
| Ethnic Origin: | Indian |
| Molecular mechanism: | N/A |
| Inheritance: | Recessive |
| DNA Sequence Determined: | Yes |
In silico pathogenicity prediction
Sequence Viewer
Frequencies
Publications / Origin
To the best of our knowledge, this is unpublished data. Please use with caution!