Members of this family are essential for gametocytogenesis in Plasmodium falciparum. They contain a fold composed of two pseudo dyad-related repeats of the helix-turn-helix motif, serving as a platform for RNA and Src homology-3 (SH3) binding [1].

1: Structure of a gametocyte protein essential for sexual development in Plasmodium falciparum. Sharma A, Sharma I, Kogkasuriyachai D, Kumar N; Nat Struct Biol. 2003;10:197-203. PMID:12577051