unstable hemoglobins

un·sta·ble he·mo·glo·bins

a group of rare Hb's with amino acid substitutions (or amino acid deletions in three types) that alter the three-dimensional shape of the globin in a manner that renders the molecule unstable; they have an increased but variable tendency to autooxidation and Heinz body formation and are associated with congenital nonspherocytic hemolytic anemia. The unstable β-chain abnormalities include Hb's Genova, Gun Hill, Hammersmith, Köln, Philly, Sabine, Santa Ana, Sydney, Wien, and Zürich; unstable α-chain abnormalities include Hb's Bibba, Sinai, and Torino.

单词	unstable hemoglobins
释义	unstable hemoglobins un·sta·ble he·mo·glo·bins a group of rare Hb's with amino acid substitutions (or amino acid deletions in three types) that alter the three-dimensional shape of the globin in a manner that renders the molecule unstable; they have an increased but variable tendency to autooxidation and Heinz body formation and are associated with congenital nonspherocytic hemolytic anemia. The unstable β-chain abnormalities include Hb's Genova, Gun Hill, Hammersmith, Köln, Philly, Sabine, Santa Ana, Sydney, Wien, and Zürich; unstable α-chain abnormalities include Hb's Bibba, Sinai, and Torino.
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