"Proteins determine most of the membrane's functions. One protein can have several functions. Integral proteins - those that penetrate through the phospholipid bilayer - regulate what comes in and out of a cell. Peripheral proteins are like appendages bound to the surface of the membrane "
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.