IthaID: 147

Names and Sequences

Functionality: Globin gene causative mutation Pathogenicity: Pathogenic / Likely Pathogenic
Common Name: CD 41/42 (-CTTT) HGVS Name: HBB:c.126_129delCTTT
Hb Name: N/A Protein Info: β 41 - 42 (-TTCT) or β 41 - 42 (-CTTT) or β 41 - 42 (-TCTT); modified C-terminal sequence

Context nucleotide sequence:

Also known as: CD 41/42 (-TTCT), CD 41/42 (-TCTT)

Comments: Also reported in literature as CD 41/42 -TTCT or -TCTT, which do not follow the HGVS Sequence Variant Nomeclature recommendations.

We follow the HGVS sequence variant nomenclature and IUPAC standards.


Hemoglobinopathy Group: Thalassaemia
Hemoglobinopathy Subgroup: β-thalassaemia
Allele Phenotype:β0
Associated Phenotypes: Haemolytic anaemia [HP:0001878]
Ineffective erythropoiesis [HP:0010972]


Chromosome: 11
Locus: NG_000007.3
Locus Location: 70850
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: Chinese, SE Asian, Indian, Thai
Molecular mechanism: Altered heme pocket
Inheritance: Recessive
DNA Sequence Determined: No

In silico pathogenicity prediction

Sequence Viewer

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Publications / Origin

  1. Kimura A, Matsunaga E, Takihara Y, Nakamura T, Takagi Y, Lin S, Lee H, Structural analysis of a beta-thalassemia gene found in Taiwan., The Journal of biological chemistry, 258(5), 2748-9, 1983 PubMed
  2. Kazazian HH, Orkin SH, Antonarakis SE, Sexton JP, Boehm CD, Goff SC, Waber PG, Molecular characterization of seven beta-thalassemia mutations in Asian Indians., The EMBO journal, 3(3), 593-6, 1984 PubMed
  3. Panyasai S, Satthakarn S, Pornprasert S, Complex Interaction of Hb Q-Thailand (HBA1: c.223G>C) with β-Thalassemia/Hb E (HBB: c.79G>A) Disease., Hemoglobin, 42(1), 54-57, 2018 PubMed
Created on 2010-06-16 16:13:15, Last reviewed on 2021-12-15 11:47:43 (Show full history)

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