Structured Summary
Abstract
An adult hemoglobin component normally present in hemolysates from human erythrocytes in concentrations of about 3%. The hemoglobin is composed of two alpha chains and two delta chains. The percentage of HbA2 varies in some hematologic disorders, but is about double in beta-thalassemia.
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Classification
Broader headings
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Synonyms
1 entry terms
- A2, Hemoglobin
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Aspects Covered
30 allowable subheadings
Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, biosynthesis, cerebrospinal fluid, chemical synthesis, chemistry, classification, deficiency, drug effects, economics, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, ultrastructure, urine.
MeSH Record
Indexing Annotation
/urine: coordinate with HEMOGLOBINURIA
MeSH Record
History Note
91(79); was see under HEMOGLOBIN A 1979-90
MeSH Record
Previous Indexing
- Hemoglobin A (1977-1978)
- Hemoglobins (1966-1976)
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AMA Style
References
- National Library of Medicine. Hemoglobin A2. Medical Subject Headings (MeSH). 2026. Unique ID D006443. http://id.nlm.nih.gov/mesh/2026/D006443
- Hemoglobin A2. In: Wikipedia. https://en.wikipedia.org/wiki/Hemoglobin_A2
- Hemoglobin A2. In: Wikidata. https://www.wikidata.org/wiki/Q426738