Descriptions

The HBA1 gene (hemoglobin, alpha 1) [HGNC Gene ID:4823] is located on chromosome 16p13.3. The human alpha globin gene cluster located on chromosome 16 spans about 30 kb and includes seven loci: 5'- zeta - pseudozeta - mu - pseudoalpha-1 - alpha-2 - alpha-1 - theta - 3'. The alpha-2 (HBA2) and alpha-1 (HBA1) coding sequences are identical. These genes differ slightly over the 5' untranslated regions and the introns, but they differ significantly over the 3' untranslated regions. Two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin; alpha chains combine with delta chains to constitute HbA-2, which with HbF (fetal hemoglobin) makes up the remaining 3% of adult hemoglobin. Alpha thalassemias result from deletions of each of the alpha genes as well as deletions of both HBA2 and HBA1; some nondeletion alpha thalassemias have also been reported. [provided by RefSeq, Jul 2008] [NCBI Gene ID:3039] Source: National Center for Biotechnology Information (NCBI) Gene

The HBA2 gene (hemoglobin, alpha 2) [HGNC Gene ID:4824] is located on chromosome 16p13.3. The human alpha globin gene cluster located on chromosome 16 spans about 30 kb and includes seven loci: 5'- zeta - pseudozeta - mu - pseudoalpha-1 - alpha-2 - alpha-1 - theta - 3'. The alpha-2 (HBA2) and alpha-1 (HBA1) coding sequences are identical. These genes differ slightly over the 5' untranslated regions and the introns, but they differ significantly over the 3' untranslated regions. Two alpha chains plus two beta chains constitute HbA, which in normal adult life comprises about 97% of the total hemoglobin; alpha chains combine with delta chains to constitute HbA-2, which with HbF (fetal hemoglobin) makes up the remaining 3% of adult hemoglobin. Alpha thalassemias result from deletions of each of the alpha genes as well as deletions of both HBA2 and HBA1; some nondeletion alpha thalassemias have also been reported. [provided by RefSeq, Jul 2008] [NCBI Gene ID:3040] Source: National Center for Biotechnology Information (NCBI) Gene

Reference Information

TypeSourceReference
WebcontentOnline Mendelian Inheritance in Man®Copyright OMIM® and Online Mendelian Inheritance in Man® are registered trademarks of the Johns Hopkins University. Link to OMIM

Basic Part Properties

Part Name
HBA2 gene
Part Display Name
HBA2 gene
Part Type
Component (Describes the core component or analyte measured)
Created On
2009-03-24
Construct for LOINC Short Name
HBA2 gene

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Language Variants Get Info

TagLanguageTranslation
zh-CNChinese (China)HBA2 基因
Synonyms: HBA1;alpha 2 globin;alpha globin;alpha-2 globin;hemoglobin, alpha 2;alpha 2 球蛋白;alpha 球蛋白;alpha-2 球蛋白;血红蛋白, alpha 2;α2 球蛋白;α球蛋白;α-2 球蛋白;血红蛋白, α2
es-ESSpanish (Spain)Gen HBA2
it-ITItalian (Italy)HBA2, gene
Synonyms: Gene HBA2
tr-TRTurkish (Turkey)HBA2 geni
ru-RURussian (Russian Federation)HBA2 ген
nl-NLDutch (Netherlands)HBA2-gen
Synonyms: HBA2 gen
fr-FRFrench (France)HBA2 gène
pl-PLPolish (Poland)HBA2 gen
Synonyms: Gen HBA2;Gen podjednostki alfa 2 hemoglobiny
el-GRGreek (Greece)Γονίδιο HBA2
Synonyms: Γονίδιο HBA2