title: Hb Yokohama [beta 31 (B13)Leu----Pro] detected as a de novo mutation in a Yugoslavian boy.
abstract: Hb Yokohama [beta 31 (B13)Leu----Pro] was observed in a young Yugoslavian boy as a de novo mutation. The child exhibited severe transfusion-dependent hemolytic anemia. The variant was detected and quantitiated at 10.5% by reversed phase high performance liquid chromatography. In vitro globin chain synthesis showed a slight imbalance with an alpha/beta ratio of 1.38. Structural characterization of the abnormal beta chain was done by high performance liquid chromatographic analysis, on material obtained by high salt precipitation. The mutation was confirmed by sequencing of the amplified DNA.
authors.affiliation: Macedonian Academy of Sciences and Arts Research Center for New Technologies, Skopje, Yugoslavia.
authors.forename: D
authors.initials: D
authors.lastname: Plaseska
authors.forename: L
authors.initials: L
authors.lastname: Janković
authors.forename: A J
authors.initials: AJ
authors.lastname: Dimovski
authors.forename: D
authors.initials: D
authors.lastname: Milenović
authors.forename: D
authors.initials: D
authors.lastname: Juricić
authors.forename: G D
authors.initials: GD
authors.lastname: Efremov
mesh_terms: D000745:Anemia, Hemolytic, Congenital / Q000097:blood / Q000235:genetics / Q000628:therapy; D001483:Base Sequence; D001803:Blood Transfusion; D002648:Child; D003062:Codon; D003131:Combined Modality Therapy; D004252:DNA Mutational Analysis; D005914:Globins / Q000235:genetics*; D006683:HLA-DQ Antigens / Q000235:genetics; D006455:Hemoglobins, Abnormal / Q000235:genetics*; D006801:Humans; D008297:Male; D008969:Molecular Sequence Data; D009154:Mutation; D013156:Splenectomy; D015022:Yugoslavia
chemical_list: D003062:Codon; D006683:HLA-DQ Antigens; D006455:Hemoglobins, Abnormal; C033981:hemoglobin Yokohama; D005914:Globins