A New β Chain Variant, Hb Tyne [β5(A2)Pro->ser]

Abstract
We have identified a new β chain hemoglobin (Hb) variant in a 66-year-old diabetic male after an inappropriately low level of glycosylated Hb was detected by enzyme immunoassay, and confirmatory ion exchange high performance liquid chromatography (HPLC) revealed the presence of an abnormal Hb. We have subsequently identified the same Hb mutation in an apparently unrelated diabetic male, again following its detection by HPLC.