Kinda, the shapes are totally different, but a receptor is made to bind and hold onto a hormone the way a baseball glove can capture and hold on to a baseball.
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.