Imp-L2, a putative homolog of vertebrate IGF-binding protein 7, counteracts insulin signaling in Drosophila and is essential for starvation resistance.

Imp-L2 是脊椎动物 IGF 结合蛋白 7 的假定同源物，它能拮抗果蝇的胰岛素信号传导，并且对抵抗饥饿至关重要