|
Functionality:
|
Neutral polymorphism |
Pathogenicity:
|
N/A |
|
Common Name:
|
African II duplication |
HGVS Name:
|
NC_000011.10:g.5268938_5268939ins4619102_(5180070_5183700)ins(5216190_5222040)_5268938 |
We follow the
HGVS sequence variant nomenclature
and
IUPAC standards.
Comments: The duplication includes an intact β-globin gene cluster with the sickle cell mutation and a partial wild-type β-globin gene cluster (lacking both the 5'βLCR and 3'HS1) in the same locus, resulting in three copies of β-globin gene in the genome. The duplication event is probably the result of non-homologous recombination between L1PB1 and intron 2 of HBE1. The associated phenotype is likely to be silent when not present with other haemoglobinopathy mutations.