A Novel β-Globin Variant, Hb Raklev [β 75(E19) HBB:c.227T > A (Leu→Gln)]

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We present a new hemoglobin variant, Hb Raklev, characterized by the substitution of leucine with glutamine at position 75 in the β-globin chain. This variant was discovered inadvertently during an HbA1c evaluation using high performance liquid chromatography in a symptomless 54-year-old Caucasian woman, with the same variant also identified in her 16-year-old daughter. Purification of the hemoglobin revealed possibly diminished 2,3-bisphosphoglycerate (2,3-BPG) sensitivity, which may result in heightened oxygen affinity. Notably, two variants have been previously documented at this location: the unstable Hb Atlanta and the high-affinity Hb Pasadena.

Original languageEnglish
JournalHemoglobin
Volume47
Issue number4
Pages (from-to)140-144
Number of pages5
ISSN0363-0269
DOIs
Publication statusPublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 Informa UK Limited, trading as Taylor & Francis Group.

    Research areas

  • Hemoglobin, hemoglobin variant, high affinity hemoglobin, high performance liquid chromatography, oxygen affinity

ID: 396003358