Intracellular JH receptors have recently been established as basic helix-loop-helix
transcription factor (bHLH)/PAS proteins in Drosophila melanogaster known as germ cell–
expressed (Gce) and its duplicate paralog, methoprene-tolerant (Met). Upon binding JH,
Gce/Met activates its target genes. Insects possess multiple native JH homologs whose
molecular activities remain unexplored, and diverse synthetic compounds including …