Hemoglobin Kenya composed of alpha- and ((A)gammabeta)-fusion-globin chains, associated with hereditary persistence of fetal hemoglobin.

Hb Kenya is made up of two normal alpha-globin chains and two (A)gammabeta-fusion globin chains. The latter are the product of an (A)gammabeta-hybrid globin gene formed as a result of misalignment during meiosis and nonhomologous crossing over. It is associated with a deletion of 22.