Characterization of hemoglobin Burke [beta 107 (G9) Gly replaced by Arg]
- PMID: 10883
- DOI: 10.1007/BF00485836
Characterization of hemoglobin Burke [beta 107 (G9) Gly replaced by Arg]
Abstract
Hb Burke [beta 107 (G9) Gly replaced by Arg] was discovered in a young woman with hemolytic anemia. A substitution in this position has not been previously reported either in the human beta-chain or in any of the animal beta-chains so far sequenced. The abnormal hemoglobin shows heat instability and a lowered oxygen affinity. The substitution of a large charged arginine residue for the small glycine residue in the G helix next to a heme contact (Leu-106) may be responsible for these effects. Hb Burke is compared with five other hemoglobins having Gly-Arg substitutions in other parts of the molecule.
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