Hemoglobin D-Ibadan Hemoglobin D (badan) Few but definitions not freely available An unusual hemoglobin that shows all the electrophoretic features of Hb D, but has no inherited disability. This hemoglobin has a beta 87 Thr > Lys mutation. Request inclusion into NCIT below "Hemoglobin"/"Hemoglobin Variant"/"Unusual Hemoglobin". Unusual Hemoglobin