title: Hb F-Xin-Su or A gamma I73(E17)Asp----His: a new slow-moving fetal hemoglobin variant.
abstract: A slow-moving gamma chain variant was discovered in the cord blood of an infant born to parents of the Han nationality from Jiangsu. The variant, which migrated electrophoretically at alkaline pH between Hb A and Hb D, was characterized by an Asp----His substitution at gamma 73, while residues gamma 75 and gamma 136 were occupied by Ile and Ala, respectively. As the A gamma T-chain was also present, this baby has two types of abnormal gamma-chain. The variant was named Hb F-Xin-Su.
mesh_terms: D000595:Amino Acid Sequence; D002851:Chromatography, High Pressure Liquid; D004588:Electrophoresis, Cellulose Acetate; D005312:Fetal Blood / Q000032:analysis*; D005319:Fetal Hemoglobin / Q000032:analysis*; D006455:Hemoglobins, Abnormal / Q000032:analysis*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D010449:Peptide Mapping; D013056:Spectrophotometry, Ultraviolet
chemical_list: D006455:Hemoglobins, Abnormal; C054744:hemoglobin F Xin-Su; D005319:Fetal Hemoglobin