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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.
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 variants are not necessarily pathological. For example, Hb Lepore-Boston and G-Waimanalo are two variants which are non-pathological. [38] There are in excess of 1,000 known hemoglobin variants. [39] A research database of hemoglobin variants is maintained by Penn State University. [40] A few of these variants are listed below.
The test uses the principles of gel electrophoresis to separate out the various types of hemoglobin and is a type of native gel electrophoresis.After the sample has been treated to release the hemoglobin from the red cells, it is introduced into a porous gel (usually made of agarose or cellulose acetate) and subjected to an electrical field, most commonly in an alkaline medium.
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 ]
The most commonly used method for Hemoglobin analysis used is alkaline cellulose acetate electrophoresis at pH 8.6, due to its ability to split hemoglobin into its common variants, however a review of the College of American Pathologists (CAP) Hemoglobinopahty Survey Reports has provided the number of laboratories that utilise high-performance ...
15122 Ensembl ENSG00000188536 ENSMUSG00000069919 UniProt P69905 Q91VB8 RefSeq (mRNA) NM_000517 NM_008218 RefSeq (protein) NP_000508 NP_000508.1 NP_000549.1 NP_001077424 Location (UCSC) Chr 16: 0.17 – 0.17 Mb Chr 11: 32.23 – 32.23 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Hemoglobin, alpha 2 also known as HBA2 is a gene that in humans codes for the alpha globin chain of ...
It is also the most frequent hemoglobin variant in Xinjiang Uyghur Autonomous Region of China, with a 1997 study indicating that Hemoglobin D-Punjab accounts for 55.6% of the total hemoglobin variants. [2] Hemoglobin D is a result of a mutation in the one or both of the Beta-chains that make up hemoglobin molecules.