IthaID: 57

Names and Sequences

Functionality: Globin gene causative mutation Pathogenicity: Pathogenic / Likely Pathogenic
Common Name: CD 6 -A HGVS Name: HBB:c.20delA
Hb Name: N/A Protein Info: β 6 (-A); modified C-terminal sequence: (6)Gly-Arg-Ser-Leu-Pro-Leu-Leu-Pro-Cys-Gly- Ala-(17)Arg-COOH

Context nucleotide sequence:

Also known as:

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: 70614
Size: 1 bp
Located at: β
Specific Location: Exon 1

Other details

Type of Mutation: Point-Mutation(Deletion)
Effect on Gene/Protein Function: Frameshift (Translation)
Ethnic Origin: Mediterranean, African-American
Molecular mechanism: Altered secondary structure
Inheritance: Recessive
DNA Sequence Determined: No

In silico pathogenicity prediction

Sequence Viewer

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Publications / Origin

  1. Chang JC, Alberti A, Kan YW, A beta-thalassemia lesion abolishes the same Mst II site as the sickle mutation., Nucleic acids research, 11(22), 7789-94, 1983 PubMed
  2. Kazazian HH, Orkin SH, Boehm CD, Sexton JP, Antonarakis SE, beta-Thalassemia due to a deletion of the nucleotide which is substituted in the beta S-globin gene., American journal of human genetics, 35(5), 1028-33, 1983 PubMed
  3. Gonzalez-Redondo JM, Stoming TA, Lanclos KD, Gu YC, Kutlar A, Kutlar F, Nakatsuji T, Deng B, Han IS, McKie VC, Clinical and genetic heterogeneity in black patients with homozygous beta-thalassemia from the southeastern United States., Blood, 72(3), 1007-14, 1988 PubMed
  4. Petkov GH, Efremov GD, Efremov DG, Dimovski A, Tchaicarova P, Tchaicarov R, Rogina B, Agarwal S, Kutlar A, Kutlar F, Beta-thalassemia in Bulgaria., Hemoglobin, 14(1), 25-33, 1990 PubMed
Created on 2010-06-16 16:13:14, Last reviewed on 2014-04-30 09:31:16 (Show full history)

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