HBD Chromosome 11

Hemoglobin subunit delta
13 variants 13 Health Risk

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What This Gene Does
The delta (HBD) and beta (HBB) genes are normally expressed in the adult: two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin. Two alpha chains plus two delta chains constitute HbA-2, which with HbF comprises the remaining 3% of adult hemoglobin. Five beta-like globin genes are found within a 45 kb cluster on chromosome 11 in the following order: 5'-epsilon--Ggamma--Agamma--delta--beta-3'. Mutations in the delta-globin gene are associated with beta-thalassemia. [provided by RefSeq, Jul 2008]
Gene Info
Gene Group
Hemoglobin subunits
Locus Type
gene with protein product
Location
11p15.4
Ensembl
ENSG00000223609
Associated Conditions (12)
delta Thalassemia
HEMOGLOBIN A(2) YIALOUSA
Fetal hemoglobin quantitative trait locus 1
Glucocorticoid-remediable aldosteronism
Thalassemia
Delta-beta-thalassemia
HBD-related disorder
Delta-0-thalassemia
Delta-plus-thalassemia
HEMOGLOBIN A(2) BABINGA
Hepatocellular carcinoma
HEMOGLOBIN A(2) GROVETOWN
Key Variants
All Variants (13)
RSID Category Clinical Significance Conditions
RS35152987 Health Risk Conflicting classifications of pathogenicity delta Thalassemia, HEMOGLOBIN A(2) YIALOUSA, Fetal hemoglobin quantitative trait locus 1
RS549964658 Health Risk Conflicting classifications of pathogenicity Delta-beta-thalassemia, HBD-related disorder, Delta-beta-thalassemia
RS34224604 Health Risk Pathogenic Delta-0-thalassemia, Delta-0-thalassemia
RS34975911 Health Risk Pathogenic delta Thalassemia, delta Thalassemia
RS35324967 Health Risk Pathogenic delta Thalassemia, delta Thalassemia
RS35518301 Health Risk Pathogenic Delta-plus-thalassemia, Delta-plus-thalassemia
RS35654785 Health Risk Pathogenic delta Thalassemia, delta Thalassemia
RS35661168 Health Risk Pathogenic delta Thalassemia, delta Thalassemia
RS35849348 Health Risk Pathogenic HEMOGLOBIN A(2) BABINGA, HEMOGLOBIN A(2) BABINGA
RS35887507 Health Risk Pathogenic Delta-0-thalassemia, Delta-0-thalassemia
RS36023765 Health Risk Pathogenic delta Thalassemia, Hepatocellular carcinoma, delta Thalassemia
RS63750345 Health Risk Pathogenic delta Thalassemia, delta Thalassemia
RS34430836 Health Risk Pathogenic; other delta Thalassemia, HEMOGLOBIN A(2) GROVETOWN, delta Thalassemia
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