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... > Amino Acids, Peptides, and Proteins > Proteins > Blood Proteins > Hemoglobins > Hemoglobin A > Hemoglobin A2
... > Amino Acids, Peptides, and Proteins > Proteins > Hemeproteins > Globins > Hemoglobins > Hemoglobin A > Hemoglobin A2

Preferred term

Hemoglobin A2  

Type

  • Topical Descriptor

Broader concept

Note

  • /urine: coordinate with HEMOGLOBINURIA

Scope note

  • 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.

History note

  • 91(79); was see under HEMOGLOBIN A 1979-90

In other languages

URI

http://www.yso.fi/onto/mesh/D006443

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