IthaID: 193
Names and Sequences
| Functionality: | Globin gene causative mutation | Pathogenicity: | Pathogenic / Likely Pathogenic |
|---|---|---|---|
| Common Name: | CD 91 CTG>C-G | HGVS Name: | HBB:c.275del |
| Hb Name: | Hb Morgantown | Protein Info: | β 91 (-T); modified C-terminal sequence |
Context nucleotide sequence:
GGCACCTTTGCCACACTGAGTGAGC [-/T] GCACTGTGACAAGCTGCACGTGGAT (Strand: -)
Also known as:
Comments: Hb Morgantown, causes a frame shift in the coding DNA sequence and results in a variant beta-globin chain with 156 amino acid residues before it is terminated by an in frame TAA termination codon. The amino acids from codon 91 till the carboxyl-end are entirely different from those of a normal beta-globin chain, which has 146 amino acids.
We follow the HGVS sequence variant nomenclature and IUPAC standards.
Phenotype
| Hemoglobinopathy Group: | Thalassaemia and Structural Haemoglobinopathy |
|---|---|
| Hemoglobinopathy Subgroup: | β-thalassaemia, β-chain variant |
| Allele Phenotype: | Dominant |
| Stability: | N/A |
| Oxygen Affinity: | N/A |
| Associated Phenotypes: |
Haemolytic anaemia [HP:0001878] Ineffective erythropoiesis [HP:0010972] |
Location
| Chromosome: | 11 |
|---|---|
| Locus: | NG_000007.3 |
| Locus Location: | 70999 |
| Size: | 1 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: | Irish |
| Molecular mechanism: | N/A |
| Inheritance: | Dominant |
| DNA Sequence Determined: | No |
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
- Luo HY, Tang W, Eung SH, Coad JE, Canfield P, Keller F, Crowell EH, Steinberg MH, Chui DH, Dominantly inherited beta thalassaemia intermedia caused by a new single nucleotide deletion in exon 2 of the beta globin gene: Hb morgantown (beta91 CTG>CG)., Journal of clinical pathology, 58(10), 1110-2, 2005 PubMed
Created on 2010-06-16 16:13:15,
Last reviewed on 2014-04-08 13:05:43 (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 17:28:32 | The IthaGenes Curation Team | Reviewed. |
| 3 | 2014-04-08 13:05:43 | The IthaGenes Curation Team | Reviewed. |
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IthaGenes was last updated on 2024-04-12 12:35:12