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hemoglobin A2


Definition: the normal Hb (Hb A2) of the formula a2A?2 or a2?2, which makes up approximately 2.5% of the total adult hemoglobin concentration. At least 18 mutant variants of the ? chain have been reported.

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.