A new unstable variant of the fetal hemoglobin HBG2 gene: Hb F-Turritana [(G) γ64(E8)Gly→Asp, HBG2:c.194G>A] found in cis to the Hb F-Sardinia gene [(A) γ(E19)Ile→Thr, HBG1:c.227T>C].

Abstract excerpt

A new variant of the fetal hemoglobin (Hb) was observed in a newborn baby subjected to phototherapy due to jaundice, by means of electrophoretic and chromatographic techniques. The variant Hb resulted unstable by the isopropanol stability test. After HBG2 gene sequencing, the G to A transversion at codon 64, position eight of the E helix, was found, which corresponds to the Asp for Gly amino acid substitution....

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