Recombinant Mouse Hemoglobin subunit zeta protein (His tag)

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The Hemoglobin subunit zeta also known as HBZ or ζ-globin is a protein subunit of hemoglobin present predominantly during early embryonic stages. It is a part of the alpha-globin gene cluster located on chromosome 16. This protein typically measures approximately 16 kDa in molecular weight. Expression of the zeta subunit is mostly confined to embryonic tissues including the yolk sac and early erythroid cells. Throughout development the presence of HBZ is significantly reduced as other globin genes take precedence for fetal and adult hemoglobin production.

Biological function summary

Hemoglobin subunit zeta plays a role in the formation of embryonic hemoglobin specifically the ζ2ε2 or Gower-1 hemoglobin complex. This complex facilitates the transfer of oxygen from the mother to the developing embryo. The zeta subunit interacts with other globin genes to form early hemoglobin types critical for oxygen transport at this stage. It enables the initial establishment of a functional circulatory system during early development.

Pathways

The Hemoglobin subunit zeta engages in the oxygen transport pathway important to the early stages of embryogenesis. As part of this pathway it directly interacts with epsilon-globin to form the embryonic Gower-1 hemoglobin. This pathway operates in parallel with but distinctly from the fetal hemoglobin pathway involving alpha and gamma globins. These interactions illustrate the complex switch and regulation of globin gene expression that occurs as development progresses.

Hemoglobin subunit zeta has associations with hemoglobinopathies such as alpha-thalassemia. Mutations or deletions in the alpha-globin gene cluster can impact HBZ production contributing to anemia and related disorders. Additionally its dysregulation can be a marker for developmental delays in hematopoiesis. Interactions with the alpha-globin proteins highlight the clinical relevance of studying HBZ mutations and their impacts on blood disorders.