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Within the medical specialty of hematology, Hemoglobin D-Punjab, also known as hemoglobin D-Los Angeles, [1] D-North Carolina, D-Portugal, D-Oak Ridge, and D-Chicago, [2] is a hemoglobin variant. It originates from a point mutation in the human β-globin locus and is one of the most common hemoglobin variants worldwide. [ 1 ]
Hemoglobin D (HbD) is a variant of hemoglobin, a protein complex that makes up red blood cells.Based on the locations of the original identification, it has been known by several names such as hemoglobin D-Los Angeles, hemoglobin D-Punjab, [1] D-North Carolina, D-Portugal, D-Oak Ridge, and D-Chicago. [2]
Hemoglobin variants occur when there are mutations in specific genes that code for the protein chains, known as globins, which make up the hemoglobin molecule. This leads to amino acid substitutions in the hemoglobin molecule that could affect the structure, properties, and/or the stability of the hemoglobin molecule.
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Unstable hemoglobin variants are mutations that cause the hemoglobin molecule to precipitate, spontaneously or upon oxidative stress, resulting in hemolytic anemia. Precipitated, denatured hemoglobin can attach to the inner layer of the plasma membrane of the red blood cell (RBC) forming Heinz bodies , leading to premature destruction of the ...
n/a Ensembl ENSG00000223609 n/a UniProt P02042 n/a RefSeq (mRNA) NM_000519 n/a RefSeq (protein) NP_000510 n/a Location (UCSC) Chr 11: 5.23 – 5.24 Mb n/a PubMed search n/a Wikidata View/Edit Human Hemoglobin subunit delta is a protein that in humans is encoded by the HBD gene. Function The delta (HBD) and beta (HBB) genes are normally expressed in the adult: two alpha chains plus two beta ...
Hemoglobin D (HbD), a type of hemoglobin; Hemoglobin subunit delta , a protein that in humans is encoded by the HBD gene; Hoja blanca disease, a disease caused by rice hoja blanca tenuivirus; Hot bearing detector, a type of a defect detector; Human biodiversity; see Human genetic variation; Hbd, IMA symbol for Humboldtine
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